1699 lines
39 KiB
Plaintext
1699 lines
39 KiB
Plaintext
<ul class="nav nav-tabs">
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<li class="active"><a data-toggle="tab" href="#home">监测结果</a></li>
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<li><a data-toggle="tab" href="#menu3">统计分析</a></li>
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<li><a data-toggle="tab" href="#menu1">数据源</a></li>
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<li><a data-toggle="tab" href="#menu2">技术规范</a></li>
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</ul>
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<div class="tab-content">
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<div id="home" class="tab-pane fade in active">
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<div class="text_cell_render rendered_html" tabindex="-1">
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<table width="90%">
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<tbody>
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<tr>
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<th>年份</th>
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<th>数据集名称</th>
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<th>元数据</th>
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<th>属性表</th>
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<th>在线地图</th>
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</tr>
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<tr>
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<th>2000年</th>
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<th>三江源2000年土地利用/土地覆被数据集</th>
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<th>-</th>
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<th>-</th>
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<th>-</th>
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</tr>
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<tr>
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<th>2005年</th>
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<th>三江源2005年土地利用/土地覆被数据集</th>
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<th>-</th>
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<th>-</th>
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<th>-</th>
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</tr>
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<tr>
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<th>2006年</th>
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<th>三江源2006年土地利用/土地覆被数据集</th>
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<th>-</th>
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<th>-</th>
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<th>-</th>
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</tr>
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<tr>
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<th>2007年</th>
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<th>三江源2007年土地利用/土地覆被数据集</th>
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<th>-</th>
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<th>-</th>
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<th>-</th>
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</tr>
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<tr>
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<th>2008年</th>
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<th>三江源2008年土地利用/土地覆被数据集</th>
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<th>-</th>
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<th>-</th>
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<th>-</th>
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</tr>
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<tr>
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<th>2009年</th>
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<th>三江源2009年土地利用/土地覆被数据集</th>
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<th>-</th>
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<th>-</th>
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<th>-</th>
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</tr>
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<tr>
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<th>2010年</th>
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<th>三江源2010年土地利用/土地覆被数据集</th>
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<th>-</th>
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<th>-</th>
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<th>-</th>
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</tr>
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<tr>
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<th>2011年</th>
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<th>三江源2011年土地利用/土地覆被数据集</th>
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<th>-</th>
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<th>-</th>
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<th>-</th>
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</tr>
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<tr>
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<th>2012年</th>
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<th>三江源2012年土地利用/土地覆被数据集</th>
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<th>-</th>
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<th>-</th>
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<th>-</th>
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</tr>
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<tr>
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<th>2013年</th>
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<th>三江源2013年土地利用/土地覆被数据集</th>
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<th>-</th>
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<th>-</th>
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<th>-</th>
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</tr>
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<tr>
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<th>2014年</th>
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<th>三江源2014年土地利用/土地覆被数据集</th>
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<th>-</th>
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<th>-</th>
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<th>-</th>
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</tr>
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<tr>
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<th>2015年</th>
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<th>三江源2015年土地利用/土地覆被数据集</th>
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<th>-</th>
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<th>-</th>
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<th>-</th>
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</tr>
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</tbody>
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</table>
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</div>
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</div>
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<div id="menu3" class="tab-pane fade">
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<div class="text_cell_render rendered_html" tabindex="-1">
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<h2>1.空间分布特征</h2>
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<div align="center"><img src="/images/origin/landuse_2000_all_map.PNG" alt=""></div>
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<h2>2. 面积统计</h2>
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<h3>2.1 一级类型面积统计</h3>
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<table width="90%">
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<tbody>
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<tr>
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<th>一级类型</th>
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<th>代码</th>
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<th>图斑个数</th>
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<th>面积</th>
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<th>面积百分比(%)</th>
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</tr>
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<tr>
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</tr>
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<tr>
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<td>耕地</td>
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<td>1</td>
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<td>340</td>
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<td>761.16</td>
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<td>0.213</td>
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</tr>
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<tr>
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<td>林地</td>
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<td>2</td>
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<td>28064</td>
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<td>23514.89</td>
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<td>6.588</td>
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</tr>
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<tr>
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<td>草地</td>
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<td>3</td>
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<td>123043</td>
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<td>262023.66</td>
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<td>73.407</td>
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</tr>
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<tr>
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<td>水 域</td>
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<td>4</td>
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<td>7559</td>
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<td>17341.29</td>
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<td>4.858</td>
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</tr>
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<tr>
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<td>城乡、工矿、居民用地</td>
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<td>5</td>
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<td>395</td>
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<td>206.46</td>
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<td>0.058</td>
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</tr>
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<tr>
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<td>未利用土地</td>
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<td>6</td>
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<td>11914</td>
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<td>53099.99</td>
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<td>14.876</td>
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</tr>
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<tr>
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<td>合 计</td>
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<td></td>
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<td>171315</td>
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<td>356947.48</td>
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<td>100.000</td>
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</tr>
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</tbody>
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</table>
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<!--<div align="center"><img src="/images/origin/landuse_2000_all_1st.PNG" alt="landuse_2000_all_1st"></div>-->
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<div align="center">
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<div class="bk-root">
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<div class="plotdiv" id="c52f0928-f422-49e3-9336-eb52a1bcb285"></div>
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</div>
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</div>
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<h3>2.2 二级类型面积统计</h3>
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<table width="90%">
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<tbody>
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<tr>
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<th>一级类型</th>
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<th>二级类型</th>
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<th>代码</th>
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<th>图斑个数</th>
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<th>面积</th>
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<th>面积百分比(%)</th>
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</tr>
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<tr>
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<td rowspan="3">耕地</td>
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</tr>
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<tr>
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<td>山区旱地</td>
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<td>121</td>
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<td>71</td>
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<td>85.76</td>
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<td>0.024</td>
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</tr>
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<tr>
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<td>平原旱地</td>
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<td>123</td>
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<td>269</td>
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<td>675.40</td>
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<td>0.189</td>
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</tr>
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<tr>
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<td rowspan="5">林地</td>
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</tr>
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<tr>
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<td>有林地</td>
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<td>21</td>
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<td>1927</td>
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<td>2029.31</td>
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<td>0.569</td>
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</tr>
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<tr>
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<td>灌木林</td>
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<td>22</td>
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<td>25891</td>
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<td>21231.36</td>
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<td>5.948</td>
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</tr>
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<tr>
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<td>疏林地</td>
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<td>23</td>
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<td>230</td>
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<td>250.55</td>
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<td>0.070</td>
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</tr>
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<tr>
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<td>其他林地</td>
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<td>24</td>
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<td>16</td>
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<td>3.68</td>
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<td>0.001</td>
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</tr>
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<tr>
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<td rowspan="4">草地</td>
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</tr>
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<tr>
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<td>高覆盖度草地</td>
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<td>31</td>
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<td>32615</td>
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<td>137933.71</td>
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<td>38.643</td>
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</tr>
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<tr>
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<td>中覆盖度草地</td>
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<td>32</td>
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<td>30031</td>
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<td>45859.86</td>
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<td>12.848</td>
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</tr>
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<tr>
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<td>低覆盖度草地</td>
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<td>33</td>
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<td>60397</td>
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<td>78230.09</td>
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<td>21.916</td>
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</tr>
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<tr>
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<td rowspan="6">水域</td>
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</tr>
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<tr>
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<td>河渠</td>
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<td>41</td>
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<td>280</td>
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<td>4595.96</td>
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<td>1.288</td>
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</tr>
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<tr>
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<td>湖泊</td>
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<td>42</td>
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<td>2998</td>
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<td>7092.06</td>
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<td>1.987</td>
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</tr>
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<tr>
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<td>水库坑塘</td>
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<td>43</td>
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<td>18</td>
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<td>26.48</td>
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<td>0.007</td>
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</tr>
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<tr>
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<td>冰川和永久积雪地</td>
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<td>44</td>
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<td>411</td>
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<td>2492.46</td>
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<td>0.698</td>
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</tr>
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<tr>
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<td>滩地</td>
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<td>46</td>
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<td>3852</td>
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<td>3134.32</td>
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<td>0.878</td>
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</tr>
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<tr>
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<td rowspan="4">城乡、工矿、居民用地</td>
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</tr>
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<tr>
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<td>城镇用地</td>
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<td>51</td>
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<td>20</td>
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<td>57.25</td>
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<td>0.016</td>
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</tr>
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<tr>
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<td>农村居民点</td>
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<td>52</td>
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<td>259</td>
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<td>52.38</td>
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<td>0.015</td>
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</tr>
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<tr>
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<td>其他建设用地</td>
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<td>53</td>
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<td>116</td>
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<td>96.83</td>
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<td>0.027</td>
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</tr>
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<tr>
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<td rowspan="7">未利用土地</td>
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</tr>
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<tr>
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<td>沙地</td>
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<td>61</td>
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<td>107</td>
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<td>512.12</td>
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<td>0.143</td>
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</tr>
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<tr>
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<td>盐碱地</td>
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<td>63</td>
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<td>106</td>
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<td>37.36</td>
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<td>0.010</td>
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</tr>
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<tr>
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<td>沼泽地</td>
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<td>64</td>
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<td>8530</td>
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<td>32074.07</td>
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<td>8.986</td>
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</tr>
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<tr>
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<td>裸土地</td>
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<td>65</td>
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<td>73</td>
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<td>411.25</td>
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<td>0.115</td>
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</tr>
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<tr>
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<td>裸岩石砾地</td>
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<td>66</td>
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<td>3011</td>
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<td>18934.57</td>
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<td>5.305</td>
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</tr>
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<tr>
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<td>其它</td>
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<td>67</td>
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<td>87</td>
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<td>1130.63</td>
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<td>0.317</td>
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</tr>
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<tr>
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<td colspan="2">合计</td>
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<td></td>
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<td>171315</td>
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<td>356947.48</td>
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<td>100.000</td>
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</tr>
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</tbody>
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</table>
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<!--<div align="center"><img src="/images/origin/landuse_2000_all_2nd.PNG" alt="landuse_2000_all_2nd"></div>-->
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<div align="center">
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<div class="bk-root">
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<div class="plotdiv" id="9b048899-bd84-46f9-9842-b59f5a57e6f8"></div>
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</div>
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</div>
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<h2>3 变化情况</h2>
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<h3>3.1 一级类型变化特征</h3>
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<h4>1)一级土地利用/覆被类型年度变化特征</h4>
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<table width="90%">
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<tbody>
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<tr>
|
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<th>年份</th>
|
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<th>耕地</th>
|
||
<th>林地</th>
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<th>草地</th>
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<th>水域</th>
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<th>人工用地</th>
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<th>未利用土地</th>
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</tr>
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<tr>
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<td>2000年</td>
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<td>--</td>
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<td>--</td>
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<td>--</td>
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<td>--</td>
|
||
<td>--</td>
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<td>--</td>
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</tr>
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<tr>
|
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<td>2005年</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
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</tr>
|
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</tbody>
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</table>
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<h4>2)一级土地利用/覆被变化图</h4>
|
||
<div align="center"><img src="/images/origin/landuse_change_1st.PNG" alt=""></div>
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<h4>3)一级土地利用/覆被类型转移矩阵</h4>
|
||
<table>
|
||
<tbody>
|
||
<tr>
|
||
|
||
<td></td>
|
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<td></td>
|
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<td colspan="7">
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<div align="center">2011年</div>
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</td>
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||
</tr>
|
||
<tr>
|
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|
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</tr>
|
||
<tr>
|
||
<th></th>
|
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<th>面积</th>
|
||
<th>耕地</th>
|
||
<th>林地</th>
|
||
<th>草地</th>
|
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<th>水域</th>
|
||
<th>人工用地</th>
|
||
<th>未利用土地</th>
|
||
<th>合计</th>
|
||
</tr>
|
||
<tr>
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||
<td rowspan="9">2012年</td>
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<th>耕地</th>
|
||
<td></td>
|
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<td></td>
|
||
<td></td>
|
||
<td>0.57</td>
|
||
<td>0.57</td>
|
||
<td>0.00</td>
|
||
<td>0.00</td>
|
||
</tr>
|
||
<tr>
|
||
<th>林地</th>
|
||
<td></td>
|
||
<td></td>
|
||
<td></td>
|
||
<td>0.57</td>
|
||
<td>0.57</td>
|
||
<td>0.00</td>
|
||
<td>0.00</td>
|
||
</tr>
|
||
<tr>
|
||
<th>草地</th>
|
||
<td></td>
|
||
<td></td>
|
||
<td></td>
|
||
<td>0.57</td>
|
||
<td>0.57</td>
|
||
<td>0.00</td>
|
||
<td>0.00</td>
|
||
</tr>
|
||
<tr>
|
||
|
||
</tr>
|
||
<tr>
|
||
<th>水域</th>
|
||
<td></td>
|
||
<td></td>
|
||
<td></td>
|
||
<td>0.57</td>
|
||
<td>0.57</td>
|
||
<td>0.00</td>
|
||
<td>0.00</td>
|
||
</tr>
|
||
|
||
<tr>
|
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<th>人工用地</th>
|
||
<td></td>
|
||
<td></td>
|
||
<td></td>
|
||
<td>0.57</td>
|
||
<td>0.57</td>
|
||
<td>0.00</td>
|
||
<td>0.00</td>
|
||
</tr>
|
||
|
||
<tr>
|
||
<th>未利用土地</th>
|
||
<td></td>
|
||
<td></td>
|
||
<td></td>
|
||
<td>0.57</td>
|
||
<td>0.57</td>
|
||
<td>0.00</td>
|
||
<td>0.00</td>
|
||
</tr>
|
||
|
||
<tr>
|
||
<th>总计</th>
|
||
<td></td>
|
||
<td></td>
|
||
<td></td>
|
||
<td>0.57</td>
|
||
<td>0.57</td>
|
||
<td>0.00</td>
|
||
<td>0.00</td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
<h3>3.2 二级类型变化特征</h3>
|
||
<h4>二级土地利用/覆被类型年度变化特征</h4>
|
||
<table width="100%">
|
||
<tbody>
|
||
<tr>
|
||
<th>年份</th>
|
||
<th>山区旱地</th>
|
||
<th>平原旱地</th>
|
||
<th>有林地</th>
|
||
<th>灌木林</th>
|
||
<th>疏林地</th>
|
||
<th>高覆盖度草地</th>
|
||
<th>中覆盖度草地</th>
|
||
<th>低覆盖度草地</th>
|
||
<th>河渠</th>
|
||
<th>湖泊</th>
|
||
<th>水库坑塘</th>
|
||
<th>永久性冰川雪地</th>
|
||
<th>滩地</th>
|
||
<th>城镇用地</th>
|
||
<th>农村居民点</th>
|
||
<th>其他建设用地</th>
|
||
<th>沙地</th>
|
||
<th>沼泽地</th>
|
||
<th>裸土地</th>
|
||
<th>裸岩石砾地</th>
|
||
</tr>
|
||
<tr>
|
||
<td>2000年</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
</tr>
|
||
<tr>
|
||
<td>2005年</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
</tr>
|
||
<tr>
|
||
<td>2006年</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
</tr>
|
||
<tr>
|
||
<td>2007年</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
</tr>
|
||
<tr>
|
||
<td>2008年</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
</tr>
|
||
<tr>
|
||
<td>2009年</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
</tr>
|
||
<tr>
|
||
<td>2010年</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
</tr>
|
||
<tr>
|
||
<td>2011年</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
<h4>二级土地利用/覆被类型年度变化特征</h4>
|
||
<div align="center"><img src="/images/origin/landuse_change_1st.PNG" alt=""></div>
|
||
<h4>3)二级土地利用/覆被类型转移矩阵</h4>
|
||
<table>
|
||
<tbody>
|
||
<tr>
|
||
<td></td>
|
||
<td colspan="21">
|
||
<div align="center">2011年</div>
|
||
</td>
|
||
</tr>
|
||
<tr>
|
||
|
||
</tr>
|
||
<tr>
|
||
<td rowspan="22">2012年</td>
|
||
<th>面积</th>
|
||
<th>山区旱地</th>
|
||
<th>平原旱地</th>
|
||
<th>有林地</th>
|
||
<th>灌木林</th>
|
||
<th>疏林地</th>
|
||
<th>高覆盖度草地</th>
|
||
<th>中覆盖度草地</th>
|
||
<th>低覆盖度草地</th>
|
||
<th>河渠</th>
|
||
<th>湖泊</th>
|
||
<th>水库坑塘</th>
|
||
<th>永久性冰川雪地</th>
|
||
<th>滩地</th>
|
||
<th>城镇用地</th>
|
||
<th>农村居民点</th>
|
||
<th>其他建设用地</th>
|
||
<th>沙地</th>
|
||
<th>沼泽地</th>
|
||
<th>裸土地</th>
|
||
<th>裸岩石砾地</th>
|
||
</tr>
|
||
<tr>
|
||
|
||
<th>山区旱地</th>
|
||
<td></td>
|
||
<td></td>
|
||
<td></td>
|
||
<td>0.57</td>
|
||
<td>0.57</td>
|
||
<td>0.00</td>
|
||
<td>0.00</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
</tr>
|
||
<tr>
|
||
<th>平原旱地</th>
|
||
<td></td>
|
||
<td></td>
|
||
<td></td>
|
||
<td>0.57</td>
|
||
<td>0.57</td>
|
||
<td>0.00</td>
|
||
<td>0.00</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
</tr>
|
||
<tr>
|
||
<th>有林地</th>
|
||
<td></td>
|
||
<td></td>
|
||
<td></td>
|
||
<td>0.57</td>
|
||
<td>0.57</td>
|
||
<td>0.00</td>
|
||
<td>0.00</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
</tr>
|
||
<tr>
|
||
|
||
</tr>
|
||
<tr>
|
||
<th>灌木林</th>
|
||
<td></td>
|
||
<td></td>
|
||
<td></td>
|
||
<td>0.57</td>
|
||
<td>0.57</td>
|
||
<td>0.00</td>
|
||
<td>0.00</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
</tr>
|
||
|
||
<tr>
|
||
<th>疏林地</th>
|
||
<td></td>
|
||
<td></td>
|
||
<td></td>
|
||
<td>0.57</td>
|
||
<td>0.57</td>
|
||
<td>0.00</td>
|
||
<td>0.00</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
</tr>
|
||
|
||
<tr>
|
||
<th>高覆盖度草地</th>
|
||
<td></td>
|
||
<td></td>
|
||
<td></td>
|
||
<td>0.57</td>
|
||
<td>0.57</td>
|
||
<td>0.00</td>
|
||
<td>0.00</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
</tr>
|
||
|
||
<tr>
|
||
<th>中覆盖度草地</th>
|
||
<td></td>
|
||
<td></td>
|
||
<td></td>
|
||
<td>0.57</td>
|
||
<td>0.57</td>
|
||
<td>0.00</td>
|
||
<td>0.00</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
</tr>
|
||
<tr>
|
||
<th>低覆盖度草地</th>
|
||
<td></td>
|
||
<td></td>
|
||
<td></td>
|
||
<td>0.57</td>
|
||
<td>0.57</td>
|
||
<td>0.00</td>
|
||
<td>0.00</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
</tr>
|
||
<tr>
|
||
<th>河渠</th>
|
||
<td></td>
|
||
<td></td>
|
||
<td></td>
|
||
<td>0.57</td>
|
||
<td>0.57</td>
|
||
<td>0.00</td>
|
||
<td>0.00</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
</tr>
|
||
<tr>
|
||
<th>湖泊</th>
|
||
<td></td>
|
||
<td></td>
|
||
<td></td>
|
||
<td>0.57</td>
|
||
<td>0.57</td>
|
||
<td>0.00</td>
|
||
<td>0.00</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
</tr>
|
||
<tr>
|
||
<th>水库坑塘</th>
|
||
<td></td>
|
||
<td></td>
|
||
<td></td>
|
||
<td>0.57</td>
|
||
<td>0.57</td>
|
||
<td>0.00</td>
|
||
<td>0.00</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
</tr>
|
||
<tr>
|
||
<th>永久性冰川雪地</th>
|
||
<td></td>
|
||
<td></td>
|
||
<td></td>
|
||
<td>0.57</td>
|
||
<td>0.57</td>
|
||
<td>0.00</td>
|
||
<td>0.00</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
</tr>
|
||
<tr>
|
||
<th>滩地</th>
|
||
<td></td>
|
||
<td></td>
|
||
<td></td>
|
||
<td>0.57</td>
|
||
<td>0.57</td>
|
||
<td>0.00</td>
|
||
<td>0.00</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
</tr>
|
||
<tr>
|
||
<th>城镇用地</th>
|
||
<td></td>
|
||
<td></td>
|
||
<td></td>
|
||
<td>0.57</td>
|
||
<td>0.57</td>
|
||
<td>0.00</td>
|
||
<td>0.00</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
</tr>
|
||
<tr>
|
||
<th>农村居民点</th>
|
||
<td></td>
|
||
<td></td>
|
||
<td></td>
|
||
<td>0.57</td>
|
||
<td>0.57</td>
|
||
<td>0.00</td>
|
||
<td>0.00</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
</tr>
|
||
<tr>
|
||
<th>其他建设用地</th>
|
||
<td></td>
|
||
<td></td>
|
||
<td></td>
|
||
<td>0.57</td>
|
||
<td>0.57</td>
|
||
<td>0.00</td>
|
||
<td>0.00</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
</tr>
|
||
<tr>
|
||
<th>沙地</th>
|
||
<td></td>
|
||
<td></td>
|
||
<td></td>
|
||
<td>0.57</td>
|
||
<td>0.57</td>
|
||
<td>0.00</td>
|
||
<td>0.00</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
</tr>
|
||
<tr>
|
||
<th>沼泽地</th>
|
||
<td></td>
|
||
<td></td>
|
||
<td></td>
|
||
<td>0.57</td>
|
||
<td>0.57</td>
|
||
<td>0.00</td>
|
||
<td>0.00</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
</tr>
|
||
<tr>
|
||
<th>裸土地</th>
|
||
<td></td>
|
||
<td></td>
|
||
<td></td>
|
||
<td>0.57</td>
|
||
<td>0.57</td>
|
||
<td>0.00</td>
|
||
<td>0.00</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
</tr>
|
||
|
||
<tr>
|
||
<th>裸岩石砾地</th>
|
||
<td></td>
|
||
<td></td>
|
||
<td></td>
|
||
<td>0.57</td>
|
||
<td>0.57</td>
|
||
<td>0.00</td>
|
||
<td>0.00</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
<td>-</td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
</div>
|
||
</div>
|
||
<div id="menu1" class="tab-pane fade">
|
||
<div class="text_cell_render rendered_html" tabindex="-1">
|
||
<h2>1.遥感影像</h2>
|
||
<p></p>
|
||
<table width="75%">
|
||
<tbody>
|
||
<tr>
|
||
<th>轨道</th>
|
||
<th>范围</th>
|
||
<th>时相</th>
|
||
</tr>
|
||
<tr>
|
||
<td>131/35</td>
|
||
<td>子区</td>
|
||
<td>20110718</td>
|
||
</tr>
|
||
<tr>
|
||
<td>135/38</td>
|
||
<td>全景</td>
|
||
<td>20110628</td>
|
||
</tr>
|
||
<tr>
|
||
<td>131/36</td>
|
||
<td>子区</td>
|
||
<td>20110718</td>
|
||
</tr>
|
||
<tr>
|
||
<td>136/35</td>
|
||
<td>子区</td>
|
||
<td>20110806</td>
|
||
</tr>
|
||
<tr>
|
||
<td>132/35</td>
|
||
<td>子区</td>
|
||
<td>20110826</td>
|
||
</tr>
|
||
<tr>
|
||
<td>136/36</td>
|
||
<td>全景</td>
|
||
<td>20110806</td>
|
||
</tr>
|
||
<tr>
|
||
<td>132/36</td>
|
||
<td>全景</td>
|
||
<td>20110826</td>
|
||
</tr>
|
||
<tr>
|
||
<td>136/37</td>
|
||
<td>全景</td>
|
||
<td>20110822</td>
|
||
</tr>
|
||
<tr>
|
||
<td>132/37</td>
|
||
<td>全景</td>
|
||
<td>20110506</td>
|
||
</tr>
|
||
<tr>
|
||
<td>137/35</td>
|
||
<td>下1/2</td>
|
||
<td>20110930</td>
|
||
</tr>
|
||
<tr>
|
||
<td>133/35</td>
|
||
<td>全景</td>
|
||
<td>20110614</td>
|
||
</tr>
|
||
<tr>
|
||
<td>137/36</td>
|
||
<td>全景</td>
|
||
<td>20110914</td>
|
||
</tr>
|
||
<tr>
|
||
<td>133/36</td>
|
||
<td>全景</td>
|
||
<td>20110814</td>
|
||
</tr>
|
||
<tr>
|
||
<td>137/37</td>
|
||
<td>全景</td>
|
||
<td>20110914</td>
|
||
</tr>
|
||
<tr>
|
||
<td>133/37</td>
|
||
<td>全景</td>
|
||
<td>20110801</td>
|
||
</tr>
|
||
<tr>
|
||
<td>138/35</td>
|
||
<td>下1/2</td>
|
||
<td>20110516</td>
|
||
</tr>
|
||
<tr>
|
||
<td>134/35</td>
|
||
<td>子区</td>
|
||
<td>20110808</td>
|
||
</tr>
|
||
<tr>
|
||
<td>138/36</td>
|
||
<td>全景</td>
|
||
<td>20110921</td>
|
||
</tr>
|
||
<tr>
|
||
<td>134/36</td>
|
||
<td>全景</td>
|
||
<td>20110909</td>
|
||
</tr>
|
||
<tr>
|
||
<td>138/37</td>
|
||
<td>全景</td>
|
||
<td>20110617</td>
|
||
</tr>
|
||
<tr>
|
||
<td>134/37</td>
|
||
<td>全景</td>
|
||
<td>20110909</td>
|
||
</tr>
|
||
<tr>
|
||
<td>139/35</td>
|
||
<td>全景</td>
|
||
<td>20110726</td>
|
||
</tr>
|
||
<tr>
|
||
<td>134/38</td>
|
||
<td>全景</td>
|
||
<td>20110909</td>
|
||
|
||
</tr>
|
||
<tr>
|
||
<td>139/36</td>
|
||
<td>全景</td>
|
||
<td>20110811</td>
|
||
|
||
</tr>
|
||
<tr>
|
||
<td>135/35</td>
|
||
<td>子区</td>
|
||
<td>20110628</td>
|
||
</tr>
|
||
<tr>
|
||
<td>139/37</td>
|
||
<td>上1/2
|
||
</td>
|
||
<td>20110811</td>
|
||
</tr>
|
||
<tr>
|
||
<td>135/36</td>
|
||
<td>全景</td>
|
||
<td>20110831</td>
|
||
</tr>
|
||
<tr>
|
||
<td>140/35</td>
|
||
<td>子区</td>
|
||
<td>20111005</td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
<p></p>
|
||
<h2>2.其他资料</h2>
|
||
<ul>
|
||
<li>青海省1:100万植被图</li>
|
||
<li>青海省1:250万土地资源图</li>
|
||
<li>青海省1:250万土地类型图</li>
|
||
<li>青海省1:250万土壤图</li>
|
||
<li>青海省生态环境现状及规划情况报告</li>
|
||
<li>青海省省志:三江源志</li>
|
||
<li>青海国土资源</li>
|
||
<li>青海省土地资源及其利用》</li>
|
||
<li>果洛藏族自治州农牧业综合区划》</li>
|
||
<li>玉树藏族自治州农牧业综合区划》</li>
|
||
<li>青海省果洛藏族自治州玛多县畜牧业区划》等</li>
|
||
<li>三江源地区1:10万,1:25万地形图</li>
|
||
</ul>
|
||
|
||
</div>
|
||
</div>
|
||
<div id="menu2" class="tab-pane fade">
|
||
<div class="text_cell_render rendered_html" tabindex="-1">
|
||
<h2>1.三江源区域遥感监测土地利用与土地覆盖分类体系及含义</h2>
|
||
<br>
|
||
<table>
|
||
<tbody>
|
||
<tr>
|
||
<th colspan="2">一级类型</th>
|
||
<th colspan="2">二级类型</th>
|
||
<th rowspan="2">
|
||
<div align="center">含义</div>
|
||
</th>
|
||
</tr>
|
||
<tr>
|
||
<th>代码</th>
|
||
<th>名称</th>
|
||
<th>代码</th>
|
||
<th>名称</th>
|
||
</tr>
|
||
<tr>
|
||
<td rowspan="11">1</td>
|
||
<td rowspan="11">耕地</td>
|
||
<td>—</td>
|
||
<td>—</td>
|
||
<td>指种植农作物的土地,包括熟耕地、新开荒地、休闲地、轮歇地、草田轮作地;以种植农作物为主的农果、农桑、农林用地;耕种三年以上的滩地和滩涂</td>
|
||
</tr>
|
||
<tr>
|
||
<td rowspan="5">11</td>
|
||
<td>水田</td>
|
||
<td>指有水源保证和灌溉设施,在一般年景能正常灌溉,用以种植水稻,莲藕等水生农作物的耕地,包括实行水稻和旱地作物轮种的耕地</td>
|
||
</tr>
|
||
<tr>
|
||
<td>111</td>
|
||
<td>山区水田</td>
|
||
</tr>
|
||
<tr>
|
||
<td>112</td>
|
||
<td>丘陵水田</td>
|
||
</tr>
|
||
<tr>
|
||
<td>113</td>
|
||
<td>平原水田</td>
|
||
</tr>
|
||
<tr>
|
||
<td>114</td>
|
||
<td>大于25度坡地水田</td>
|
||
</tr>
|
||
<tr>
|
||
<td rowspan="5">12</td>
|
||
<td>旱地</td>
|
||
<td>指无灌溉水源及设施,靠天然降水生长作物的耕地;有水源和浇灌设施,在一般年景下能正常灌溉的旱作物耕地;以种菜为主的耕地,正常轮作的休闲地和轮歇地</td>
|
||
</tr>
|
||
<tr>
|
||
<td>121</td>
|
||
<td>山区旱地</td>
|
||
</tr>
|
||
<tr>
|
||
<td>122</td>
|
||
<td>丘陵旱地</td>
|
||
</tr>
|
||
<tr>
|
||
<td>123</td>
|
||
<td>平原旱地</td>
|
||
</tr>
|
||
<tr>
|
||
<td>124</td>
|
||
<td>大于25度坡地旱地</td>
|
||
</tr>
|
||
<tr>
|
||
<td rowspan="5">2</td>
|
||
<td rowspan="5">林地</td>
|
||
<td>—</td>
|
||
<td>—</td>
|
||
<td>指生长乔木、灌木、竹类、以及沿海红树林地等林业用地</td>
|
||
</tr>
|
||
<tr>
|
||
<td>21</td>
|
||
<td>有林地</td>
|
||
<td>指郁闭度>30%的天然木和人工林。包括用材林、经济林、防护林等成片林地</td>
|
||
</tr>
|
||
<tr>
|
||
<td>22</td>
|
||
<td>灌木林</td>
|
||
<td>指郁闭度>40%、高度在2米以下的矮林地和灌丛林地</td>
|
||
</tr>
|
||
<tr>
|
||
<td>23</td>
|
||
<td>疏林地</td>
|
||
<td>指郁闭度为10%~30%稀疏林地</td>
|
||
</tr>
|
||
<tr>
|
||
<td>24</td>
|
||
<td>其他林地</td>
|
||
<td>未成林造林地、迹地、苗圃及各类园地(果园、桑园、茶园、热作林园地等)</td>
|
||
</tr>
|
||
<tr>
|
||
<td rowspan="4">3</td>
|
||
<td rowspan="4">草地</td>
|
||
<td>—</td>
|
||
<td>—</td>
|
||
<td>指以生长草本植物为主,覆盖度在5%以上的各类草地,包括以牧为主的灌丛草地和郁闭度在10%以下的疏林草地</td>
|
||
</tr>
|
||
<tr>
|
||
<td>31</td>
|
||
<td>高覆盖度草地</td>
|
||
<td>指覆盖度在>50%的天然草地、改良草地和割草地。此类草地一般水分条件较好,草被生长茂密</td>
|
||
</tr>
|
||
<tr>
|
||
<td>32</td>
|
||
<td>中覆盖度草地</td>
|
||
<td>指覆盖度在20%~50%的天然草地和改良草地,此类草地一般水分不足,草被较稀疏</td>
|
||
</tr>
|
||
<tr>
|
||
<td>33</td>
|
||
<td>低覆盖度草地</td>
|
||
<td>指覆盖度在5%~20%的天然草地。此类草地水分缺乏,草被稀疏,牧业利用条件差</td>
|
||
</tr>
|
||
<tr>
|
||
<td rowspan="7">4</td>
|
||
<td rowspan="7">水域</td>
|
||
<td>—</td>
|
||
<td>—</td>
|
||
<td>指天然陆地水域和水利设施用地</td>
|
||
</tr>
|
||
<tr>
|
||
<td>41</td>
|
||
<td>河渠</td>
|
||
<td>指天然形成或人工开挖的河流及主干渠常年水位以下的土地,人工渠包括堤岸</td>
|
||
</tr>
|
||
<tr>
|
||
<td>42</td>
|
||
<td>湖泊</td>
|
||
<td>指天然形成的积水区常年水位以下的土地</td>
|
||
</tr>
|
||
<tr>
|
||
<td>43</td>
|
||
<td>水库坑塘</td>
|
||
<td>指人工修建的蓄水区常年水位以下的土地</td>
|
||
</tr>
|
||
<tr>
|
||
<td>44</td>
|
||
<td>永久性冰川雪地</td>
|
||
<td>指常年被冰川和积雪所覆盖的土地</td>
|
||
</tr>
|
||
<tr>
|
||
<td>45</td>
|
||
<td>滩涂</td>
|
||
<td>指沿海大潮高潮位与低潮位之间的潮侵地带</td>
|
||
</tr>
|
||
<tr>
|
||
<td>46</td>
|
||
<td>滩地</td>
|
||
<td>指河、湖水域平水期水位与洪水期水位之间的土地</td>
|
||
</tr>
|
||
<tr>
|
||
<td rowspan="4">5</td>
|
||
<td rowspan="4">城乡、工矿、居民用地</td>
|
||
<td>—</td>
|
||
<td>—</td>
|
||
<td>指城乡居民点及县镇以外的工矿、交通等用地</td>
|
||
</tr>
|
||
<tr>
|
||
<td>51</td>
|
||
<td>城镇用地
|
||
</td>
|
||
<td>指大、中、小城市及县镇以上建成区用地</td>
|
||
</tr>
|
||
<tr>
|
||
<td>52</td>
|
||
<td>农村居民点</td>
|
||
<td>指镇以下的居民点用地</td>
|
||
</tr>
|
||
<tr>
|
||
<td>53</td>
|
||
<td>其他建设用地</td>
|
||
<td>指独立于城镇以外的厂矿、大型工业区、油田、盐场、采石场等用地、交通道路、机场及特殊用地</td>
|
||
</tr>
|
||
<tr>
|
||
<td rowspan="8">6</td>
|
||
<td rowspan="8">未利用土地</td>
|
||
<td>—</td>
|
||
<td>—</td>
|
||
<td>目前还未利用的土地、包括难利用的土地</td>
|
||
</tr>
|
||
<tr>
|
||
<td>61</td>
|
||
<td>沙地</td>
|
||
<td>指地表为沙覆盖,植被覆盖度在5%以下的土地,包括沙漠,不包括水系中的沙滩</td>
|
||
</tr>
|
||
<tr>
|
||
<td>62</td>
|
||
<td>戈壁</td>
|
||
<td>指地表以碎砾石为主,植被覆盖度在5%以下的土地</td>
|
||
</tr>
|
||
<tr>
|
||
<td>63</td>
|
||
<td>盐碱地</td>
|
||
<td>指地表盐碱聚集,植被稀少,只能生长耐盐碱植物的土地</td>
|
||
</tr>
|
||
<tr>
|
||
<td>64</td>
|
||
<td>沼泽地</td>
|
||
<td>指地势平坦低洼,排水不畅,长期潮湿,季节性积水或常积水,表层生长湿生植物的土地</td>
|
||
</tr>
|
||
<tr>
|
||
<td>65</td>
|
||
<td>裸土地</td>
|
||
<td>指地表土质覆盖,植被覆盖度在5%以下的土地</td>
|
||
</tr>
|
||
<tr>
|
||
<td>66</td>
|
||
<td>裸岩石砾地</td>
|
||
<td>指地表为岩石或石砾,其覆盖面积>50%的土地</td>
|
||
</tr>
|
||
<tr>
|
||
<td>67</td>
|
||
<td>其他</td>
|
||
<td>指其他未利用土地,包括高寒荒漠,苔原等</td>
|
||
|
||
</tr>
|
||
<tr>
|
||
<td colspan="5">耕地的三级编码为:1 山地; 2 丘陵; 3 平原; 4 大于25度的坡地(如“113”为平原水田)</td>
|
||
</tr>
|
||
|
||
</tbody>
|
||
</table>
|
||
</div>
|
||
<div class="text_cell_render rendered_html" tabindex="-1">
|
||
<h2>2.土地利用/覆被解译流程</h2>
|
||
<h3 id="1)数据预处理">1)数据预处理<a class="anchor-link" href="#1)数据预处理">¶</a></h3>
|
||
<p>对遥感影像进行包括影像增强、几何校正、影像配准、镶嵌在内的预处理,减小非变化因素的干扰,增强影像的可判读性,有效地提高监测的精度。</p>
|
||
<h3 id="2)解译标志库的建立">2)解译标志库的建立<a class="anchor-link" href="#2)解译标志库的建立">¶</a></h3>
|
||
<p>
|
||
按土地利用/土地覆盖分类系统的要求,参照地形图和相关专题辅助资料,分析地面植被光谱特征、地貌特征,初步找出地物与遥感图像的相关或对应关系,比较不同地物的波谱特征、纹理结构和斑块的几何形状等,作为直接判读地物特征的标志;然后对景观类型中的重点、难点,制定野外调查方案。用GPS确定调查点的地理信息,拍摄调查点的照片,找出相关地物的几何特性和光谱纹理特征。</p>
|
||
<p>
|
||
在经过了地面调查后,通过在对预判结果进行野外实地校核和抽样验证的基础上,建立各地物的解译标志库。根据影像的色调、形状、大小和纹理及其组合规律,通过已知地物(地形图、专题图件等),与遥感影像上的同名地物对比分析,找出各类地物影像特征的基本规律。通过大量外业调查及详细的野外调绘,掌握监测对象的影像特征,特别是复杂人工地物的影像特征,以获取土地利用/土地覆盖解译的基本要素,包括色调、颜色、大小、形状、纹理、结构、亮度、阴影、景观格局等,并参照照片进行解译。</p>
|
||
<h3 id="3)遥感图像屏幕解译">3)遥感图像屏幕解译<a class="anchor-link" href="#3)遥感图像屏幕解译">¶</a></h3>
|
||
<p>
|
||
地面各种目标地物在遥感图像中存在着不同的色、形、位的差异,构成了可供识别的目标地物特征。色指目标地物在遥感影像上呈现的颜色特征;形指目标地物在遥感影像上表现的形状特征;位指目标地物在遥感影像上的空间位置特征。目视解译人员依据目标地物的特征,作为分析、解译、理解和识别遥感图像的基础。
|
||
卫星图像的解译过程包括:在图像上标出单独土地覆盖单元的边界;使用判读标志、辅助资料或航片来协助确定该单元的类别(定义);将确定边界和类别的判读标志(颜色、结构、纹理)推广到整个图像,实现整个图像的解译。反复检查:对解译结果与其它信息(如辅助资料、航片和计算机数据的显示)进行反复比较,这对于多光谱卫星数据是很必要的。主要流程如下:</p>
|
||
<ul>
|
||
<li>输入每幅图的遥感数据。</li>
|
||
<li>在图像处理软件中调出影像栅格文件作为判读背景(底层),通过人机交互方式,分级提取目标类别。产生的矢量数据层分别存放,并按照1:10万标准图幅分幅存放。</li>
|
||
<li>
|
||
判读人员根据影像的判读标志(如色调、颜色、形状、位置、大小、阴影纹理及其它间接标志等)和自己对该区域生态环境的分布规律的熟悉程度,定义类别,操作鼠标,沿影像特征的边缘准确绘出地类界(界线应严格封闭)并赋地类属性,建立拓扑关系,逐幅完成全部地类的解译。
|
||
</li>
|
||
<li>重要线状地物,指不宜在细小地物成数抽样中对其面积进行测算和扣除的线状地物。如铁路、公路、主要干渠、运河、河流等,其宽度小于2个象元,用单线给出,并赋属性代码。</li>
|
||
</ul>
|
||
<h3 id="4)野外核查">4)野外核查<a class="anchor-link" href="#4)野外核查">¶</a></h3>
|
||
<p>
|
||
目视判读的初步结果,需要进行野外验证,以核查目视判读的质量和解译精度。对于详细判读中出现的疑难点、难以判读地方则需要在野外验证过程中补充判读。野外核查是指再次到遥感影像判读区去实地核实影像解译的结果。野外核查的主要内容包括的方面:</p>
|
||
<ul>
|
||
<li>核查专题解译中图斑的内容是否正确。核查方法是将专题图斑对应的地物类型与实际地物类型相对照,判断解译是否准确。</li>
|
||
<li>核查图斑界线是否定位淮确,并根据野外实际考察情况修正目标地物的分布界线。</li>
|
||
</ul>
|
||
<p>
|
||
核查过程实际上是对解译标志的一种核查,如果发现由于解译标志错误导致地物类型判读错误,就需要对解译标志进行修改,依据新的解译标志再次进行解译。在此次三江源区生态环境遥感监测工作中,技术人员多次深入三江源地区,进行野外核查考察,采集野外核查点位数据信息。同时,借助其他辅助资料反复对比和分析,咨询有关部门的专家核实,确保了解译的精度。
|
||
三江源区域生态遥感野外核查技术流程见下图所示:</p>
|
||
<p></p>
|
||
<div align="center"><img src="/images/origin/Flow_Process.PNG" alt=""></div>
|
||
图1 三江源区域生态遥感野外核查技术流程<p></p>
|
||
<p>
|
||
根据本次遥感监测与评价选择的数据源、判读精度的要求,选择核查的典型地物在120米×120米以上,即影像上为4×4个象元(最小判读单元)。地物类型选择较为齐全,每个核查点都记录相关的地理信息,如地理位置、环境特征、全景景观、定点类型等,每个核查点位拍摄全景和本地物特征照片各一张。针对野外地物变化明显的地区选择边界核查点位,通过记录定位坐标和定位所在点各方位的地物类型,判读边界解译的准确性。</p>
|
||
<h3 id="5)编图和解译数据的汇总">5)编图和解译数据的汇总<a class="anchor-link" href="#5)编图和解译数据的汇总">¶</a></h3>
|
||
<p>
|
||
对解译后结果进行接边、编图等室内的整饰工作。在解译数据的汇总和编制中,根据野外考察的数据,对解译结果进行了集中校正,对数据中部分时相较差的卫星数据进行调整、统一了分类系统的认识和理解,对少数地物类型的属性进行了调整。</p>
|
||
<h3 id="6)解译质量评价">6)解译质量评价<a class="anchor-link" href="#6)解译质量评价">¶</a></h3>
|
||
<p>对遥感解译的结果进行评价,当评价结果满足评价要求时,才能提交相关成果。</p>
|
||
<h3 id="7)成果提交">7)成果提交<a class="anchor-link" href="#7)成果提交">¶</a></h3>
|
||
<p>按照成果提交及格式要求,提交影像数据、土地利用/土地覆盖现状数据库、拍摄的相片及录像和野外考察数据。</p>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
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