1658 lines
37 KiB
Plaintext
1658 lines
37 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="#menu1">统计分析</a></li>
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<li><a data-toggle="tab" href="#menu2">数据源</a></li>
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<li><a data-toggle="tab" href="#menu3">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>2005年</th>
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<th>三江源2005年土地侵蚀图</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年土地侵蚀图</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年土地侵蚀图</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年土地侵蚀图</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="menu1" class="tab-pane fade">
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<div class="text_cell_render rendered_html" tabindex="-1"><h2 id="1.面积统计">1.面积统计<a class="anchor-link"
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href="#1.面积统计">¶</a></h2>
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<h3 id="1.1-三江源地区">1.1 三江源地区<a class="anchor-link" href="#1.1-三江源地区">¶</a></h3>
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<h4 id="1)根据土壤侵蚀类型的统计">1)根据土壤侵蚀类型的统计<a class="anchor-link" href="#1)根据土壤侵蚀类型的统计">¶</a></h4>
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<table width="90%">
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<tbody>
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<tr>
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<th>土壤侵蚀类型</th>
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<th>代码</th>
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<th>面积(km<sup>2</sup>)</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>水力侵蚀</td>
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<td>1</td>
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<td>31689.51</td>
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<td>8.87</td>
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</tr>
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<tr>
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<td>风力侵蚀</td>
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<td>2</td>
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<td>113.21</td>
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<td>0.03</td>
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</tr>
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<tr>
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<td>冻融侵蚀</td>
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<td>3</td>
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<td>212253.43</td>
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<td>59.44</td>
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</tr>
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<tr>
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<td>重力侵蚀</td>
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<td>4</td>
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<td>130.67</td>
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<td>0.04</td>
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</tr>
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<tr>
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<td>工程侵蚀</td>
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<td>5</td>
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<td>130.67</td>
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<td>0.04</td>
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</tr>
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<tr>
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<td>总面积</td>
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<td></td>
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<td>357120.67</td>
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<td>100%</td>
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</tr>
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</tbody>
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</table>
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<h4 id="2)根据土壤侵蚀强度的面积统计">2)根据土壤侵蚀强度的面积统计<a class="anchor-link" href="#2)根据土壤侵蚀强度的面积统计">¶</a></h4>
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<br>
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<table width="90%">
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<tbody>
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<tr>
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<th>土壤侵蚀类型</th>
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<th>强烈分级</th>
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<th>代码</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="6">水力侵蚀</td>
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<td>微度</td>
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<td>11</td>
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<td>31689.51</td>
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<td>8.87</td>
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</tr>
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<tr>
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<td>轻度</td>
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<td>12</td>
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<td>12623.39</td>
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<td>3.53</td>
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</tr>
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<tr>
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<td>中度</td>
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<td>13</td>
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<td>5338.82</td>
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<td>1.49</td>
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</tr>
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<tr>
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<td>强烈</td>
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<td>14</td>
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<td>352.96</td>
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<td>0.10</td>
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</tr>
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<tr>
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<td>极强烈</td>
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<td>15</td>
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<td>41.95</td>
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<td>0.01</td>
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</tr>
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<tr>
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<td>剧烈</td>
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<td>16</td>
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<td>5.72</td>
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<td>0.00</td>
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</tr>
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<tr>
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<td rowspan="6">风力侵蚀</td>
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<td>微度</td>
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<td>21</td>
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<td>113.21</td>
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<td>0.03</td>
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</tr>
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<tr>
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<td>轻度</td>
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<td>22</td>
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<td>2665.69</td>
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<td>0.75</td>
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</tr>
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<tr>
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<td>中度</td>
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<td>23</td>
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<td>671.98</td>
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<td>0.19</td>
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</tr>
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<tr>
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<td>强烈</td>
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<td>24</td>
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<td>807.48</td>
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<td>0.23</td>
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</tr>
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<tr>
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<td>极强烈</td>
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<td>25</td>
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<td>6328.15</td>
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<td>1.77</td>
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</tr>
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<tr>
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<td>剧烈</td>
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<td>26</td>
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<td>0.00</td>
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<td>0.00</td>
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</tr>
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<tr>
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<td rowspan="4">冻融侵蚀</td>
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<td>微度</td>
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<td>31</td>
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<td>212253.43</td>
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<td>59.44</td>
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</tr>
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<tr>
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<td>轻度</td>
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<td>32</td>
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<td>74018.67</td>
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<td>20.73</td>
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</tr>
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<tr>
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<td>中度</td>
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<td>33</td>
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<td>10079.04</td>
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<td>2.82</td>
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</tr>
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<tr>
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<td>强烈</td>
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<td>34</td>
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<td>0.00</td>
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<td>0.00</td>
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</tr>
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<tr>
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<td>工程侵蚀</td>
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<td></td>
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<td>50</td>
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<td>130.67</td>
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<td>0.04</td>
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</tr>
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<tr>
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<td>总面积</td>
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<td></td>
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<td></td>
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<td>357120.67</td>
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<td>100%</td>
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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 class="text_cell_render rendered_html" tabindex="-1"><h3 id="1.2分县统计">1.2分县统计<a class="anchor-link"
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href="#1.2分县统计">¶</a></h3>
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<h4 id="1)土壤侵蚀类型">1)土壤侵蚀类型<a class="anchor-link" href="#1)土壤侵蚀类型">¶</a></h4>
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<table width="90%">
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<tbody>
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<tr>
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<th>市州</th>
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<th>县</th>
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<th>水力侵蚀</th>
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<th>风力侵蚀</th>
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<th>冻融侵蚀</th>
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<th>重力侵蚀</th>
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<th>工程侵蚀</th>
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<th>总面积</th>
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</tr>
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<tr>
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<td>黄南州</td>
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<td>泽库县</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>
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<td>--</td>
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<td>--</td>
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</tr>
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<tr>
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<td>黄南州</td>
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<td>河南县</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>
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<td>--</td>
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<td>--</td>
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</tr>
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<tr>
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<td>海南州</td>
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<td>同德县</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>
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<td>--</td>
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<td>--</td>
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</tr>
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<tr>
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<td>海南州</td>
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<td>兴海县</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>
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<td>--</td>
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<td>--</td>
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</tr>
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<tr>
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<td>果洛州</td>
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<td>玛沁县</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>
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<td>--</td>
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<td>--</td>
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</tr>
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<tr>
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<td>果洛州</td>
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<td>班玛县</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>
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<td>--</td>
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<td>--</td>
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</tr>
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<tr>
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<td>果洛州</td>
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<td>甘德县</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>
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<td>--</td>
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<td>--</td>
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</tr>
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<tr>
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<td>果洛州</td>
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<td>达日县</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>
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<td>--</td>
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<td>--</td>
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</tr>
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<tr>
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<td>果洛州</td>
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<td>久治县</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>
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<td>--</td>
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<td>--</td>
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</tr>
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<tr>
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<td>果洛州</td>
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<td>玛多县</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>
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<td>--</td>
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<td>--</td>
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</tr>
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<tr>
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<td>玉树州</td>
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<td>玉树县</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>
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<td>--</td>
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<td>--</td>
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</tr>
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<tr>
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<td>玉树州</td>
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<td>杂多县</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>
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<td>--</td>
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<td>--</td>
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</tr>
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<tr>
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<td>玉树州</td>
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<td>称多县</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>
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||
<td>--</td>
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<td>--</td>
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</tr>
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<tr>
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<td>玉树州</td>
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<td>治多县</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>
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||
<td>--</td>
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||
<td>--</td>
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</tr>
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<tr>
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<td>玉树州</td>
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<td>囊谦县</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
</tr>
|
||
<tr>
|
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<td>玉树州</td>
|
||
<td>曲麻莱县</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
</tr>
|
||
<tr>
|
||
<td>海西州</td>
|
||
<td>唐古拉山镇</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
</div>
|
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<div class="text_cell_render rendered_html" tabindex="-1"><h4 id="2)根据土壤侵蚀强度的统计">2)根据土壤侵蚀强度的统计<a
|
||
class="anchor-link" href="#2)根据土壤侵蚀强度的统计">¶</a></h4>
|
||
<table width="90%">
|
||
<tbody>
|
||
<tr>
|
||
<th rowspan="2">市州</th>
|
||
<th rowspan="2">县</th>
|
||
<th colspan="6">水力侵蚀</th>
|
||
<th colspan="6">风力侵蚀</th>
|
||
<th colspan="4">冻融侵蚀</th>
|
||
<th rowspan="2">重力侵蚀</th>
|
||
<th rowspan="2">工程侵蚀</th>
|
||
</tr>
|
||
<tr>
|
||
<th>微度</th>
|
||
<th>轻度</th>
|
||
<th>中度</th>
|
||
<th>强烈</th>
|
||
<th>极强烈</th>
|
||
<th>剧烈</th>
|
||
<th>微度</th>
|
||
<th>轻度</th>
|
||
<th>中度</th>
|
||
<th>强烈</th>
|
||
<th>极强烈</th>
|
||
<th>剧烈</th>
|
||
<th>微度</th>
|
||
<th>轻度</th>
|
||
<th>中度</th>
|
||
<th>强烈</th>
|
||
|
||
</tr>
|
||
<tr>
|
||
<td>黄南州</td>
|
||
<td>泽库县</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>黄南州</td>
|
||
<td>河南县</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>海南州</td>
|
||
<td>同德县</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>海南州</td>
|
||
<td>兴海县</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>果洛州</td>
|
||
<td>玛沁县</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>果洛州</td>
|
||
<td>班玛县</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>果洛州</td>
|
||
<td>甘德县</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>果洛州</td>
|
||
<td>达日县</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>果洛州</td>
|
||
<td>久治县</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>果洛州</td>
|
||
<td>玛多县</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>玉树州</td>
|
||
<td>玉树县</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>玉树州</td>
|
||
<td>杂多县</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>玉树州</td>
|
||
<td>称多县</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>玉树州</td>
|
||
<td>治多县</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>玉树州</td>
|
||
<td>囊谦县</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>玉树州</td>
|
||
<td>曲麻莱县</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>海西州</td>
|
||
<td>唐古拉山镇</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>
|
||
</div>
|
||
<div class="text_cell_render rendered_html" tabindex="-1"><h3 id="1.3-按流域统计">1.3 按流域统计<a class="anchor-link"
|
||
href="#1.3-按流域统计">¶</a>
|
||
</h3>
|
||
<h4 id="1)根据土壤侵蚀类型的统计">1)根据土壤侵蚀类型的统计<a class="anchor-link" href="#1)根据土壤侵蚀类型的统计">¶</a></h4>
|
||
<table width="90%">
|
||
<tbody>
|
||
<tr>
|
||
<th>流域</th>
|
||
<th>水力侵蚀</th>
|
||
<th>风力侵蚀</th>
|
||
<th>冻融侵蚀</th>
|
||
<th>重力侵蚀</th>
|
||
<th>工程侵蚀</th>
|
||
<th>总面积</th>
|
||
</tr>
|
||
<tr>
|
||
<td>黄河流域</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
</tr>
|
||
<tr>
|
||
<td>长江流域</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
</tr>
|
||
<tr>
|
||
<td>澜沧江流域</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
</tr>
|
||
<tr>
|
||
<td>内陆河流域</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
<td>--</td>
|
||
</tr>
|
||
|
||
</tbody>
|
||
</table>
|
||
|
||
<h4 id="2)根据土壤侵蚀强度的统计">2)根据土壤侵蚀强度的统计<a class="anchor-link" href="#2)根据土壤侵蚀强度的统计">¶</a></h4>
|
||
<table width="90%">
|
||
<tbody>
|
||
<tr>
|
||
<th rowspan="2">流域</th>
|
||
<th colspan="6">水力侵蚀</th>
|
||
<th colspan="6">风力侵蚀</th>
|
||
<th colspan="4">冻融侵蚀</th>
|
||
<th rowspan="2">重力侵蚀</th>
|
||
<th rowspan="2">工程侵蚀</th>
|
||
</tr>
|
||
<tr>
|
||
<th>微度</th>
|
||
<th>轻度</th>
|
||
<th>中度</th>
|
||
<th>强烈</th>
|
||
<th>极强烈</th>
|
||
<th>剧烈</th>
|
||
<th>微度</th>
|
||
<th>轻度</th>
|
||
<th>中度</th>
|
||
<th>强烈</th>
|
||
<th>极强烈</th>
|
||
<th>剧烈</th>
|
||
<th>微度</th>
|
||
<th>轻度</th>
|
||
<th>中度</th>
|
||
<th>强烈</th>
|
||
|
||
</tr>
|
||
<tr>
|
||
<td>黄河流域</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>长江流域</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>澜沧江流域</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>内陆河流域</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>
|
||
</div>
|
||
<div class="text_cell_render rendered_html" tabindex="-1"><h3 id="1.4-三江源地区土壤侵蚀类型等级图">1.4 三江源地区土壤侵蚀类型等级图<a
|
||
class="anchor-link" href="#1.4-三江源地区土壤侵蚀类型等级图">¶</a></h3>
|
||
<p><img src="/images/origin/soil_erosion.jpg" alt=""></p>
|
||
</div>
|
||
<div class="text_cell_render rendered_html" tabindex="-1"><h2 id="2.变化分析">2.变化分析<a class="anchor-link"
|
||
href="#2.变化分析">¶</a></h2>
|
||
<h3 id="2.1-三江源地区">2.1 三江源地区<a class="anchor-link" href="#2.1-三江源地区">¶</a></h3>
|
||
<table width="90%">
|
||
<tbody>
|
||
<tr>
|
||
<th>土壤侵蚀类型</th>
|
||
<th>2004年</th>
|
||
<th>2004年</th>
|
||
<th>2014年</th>
|
||
<th>2015年</th>
|
||
</tr>
|
||
<tr>
|
||
<td>水力侵蚀</td>
|
||
<td>1</td>
|
||
<td>31689.51</td>
|
||
<td>8.87</td>
|
||
<td>8.87</td>
|
||
</tr>
|
||
|
||
<tr>
|
||
<td>风力侵蚀</td>
|
||
<td>2</td>
|
||
<td>113.21</td>
|
||
<td>0.03</td>
|
||
<td>8.87</td>
|
||
</tr>
|
||
|
||
<tr>
|
||
<td>冻融侵蚀</td>
|
||
<td>3</td>
|
||
<td>212253.43</td>
|
||
<td>59.44</td>
|
||
<td>8.87</td>
|
||
</tr>
|
||
<tr>
|
||
<td>重力侵蚀</td>
|
||
<td>4</td>
|
||
<td>130.67</td>
|
||
<td>0.04</td>
|
||
<td>8.87</td>
|
||
</tr>
|
||
<tr>
|
||
<td>工程侵蚀</td>
|
||
<td>5</td>
|
||
<td>130.67</td>
|
||
<td>0.04</td>
|
||
<td>8.87</td>
|
||
</tr>
|
||
<tr>
|
||
<td>总面积</td>
|
||
<td></td>
|
||
<td>357120.67</td>
|
||
<td>100%</td>
|
||
<td>8.87</td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
|
||
<h3 id="2.2-分县统计">2.2 分县统计<a class="anchor-link" href="#2.2-分县统计">¶</a></h3>
|
||
<table width="90%">
|
||
<tbody>
|
||
<tr>
|
||
<th>土壤侵蚀类型</th>
|
||
<th>2004年</th>
|
||
<th>2004年</th>
|
||
<th>2014年</th>
|
||
<th>2015年</th>
|
||
</tr>
|
||
<tr>
|
||
<td>水力侵蚀</td>
|
||
<td>1</td>
|
||
<td>31689.51</td>
|
||
<td>8.87</td>
|
||
<td>8.87</td>
|
||
</tr>
|
||
|
||
<tr>
|
||
<td>风力侵蚀</td>
|
||
<td>2</td>
|
||
<td>113.21</td>
|
||
<td>0.03</td>
|
||
<td>8.87</td>
|
||
</tr>
|
||
|
||
<tr>
|
||
<td>冻融侵蚀</td>
|
||
<td>3</td>
|
||
<td>212253.43</td>
|
||
<td>59.44</td>
|
||
<td>8.87</td>
|
||
</tr>
|
||
<tr>
|
||
<td>重力侵蚀</td>
|
||
<td>4</td>
|
||
<td>130.67</td>
|
||
<td>0.04</td>
|
||
<td>8.87</td>
|
||
</tr>
|
||
<tr>
|
||
<td>工程侵蚀</td>
|
||
<td>5</td>
|
||
<td>130.67</td>
|
||
<td>0.04</td>
|
||
<td>8.87</td>
|
||
</tr>
|
||
<tr>
|
||
<td>总面积</td>
|
||
<td></td>
|
||
<td>357120.67</td>
|
||
<td>100%</td>
|
||
<td>8.87</td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
|
||
<h3 id="2.3-按流域统计">2.3 按流域统计<a class="anchor-link" href="#2.3-按流域统计">¶</a></h3>
|
||
<table width="90%">
|
||
<tbody>
|
||
<tr>
|
||
<th>土壤侵蚀类型</th>
|
||
<th>2004年</th>
|
||
<th>2004年</th>
|
||
<th>2014年</th>
|
||
<th>2015年</th>
|
||
</tr>
|
||
<tr>
|
||
<td>水力侵蚀</td>
|
||
<td>1</td>
|
||
<td>31689.51</td>
|
||
<td>8.87</td>
|
||
<td>8.87</td>
|
||
</tr>
|
||
|
||
<tr>
|
||
<td>风力侵蚀</td>
|
||
<td>2</td>
|
||
<td>113.21</td>
|
||
<td>0.03</td>
|
||
<td>8.87</td>
|
||
</tr>
|
||
|
||
<tr>
|
||
<td>冻融侵蚀</td>
|
||
<td>3</td>
|
||
<td>212253.43</td>
|
||
<td>59.44</td>
|
||
<td>8.87</td>
|
||
</tr>
|
||
<tr>
|
||
<td>重力侵蚀</td>
|
||
<td>4</td>
|
||
<td>130.67</td>
|
||
<td>0.04</td>
|
||
<td>8.87</td>
|
||
</tr>
|
||
<tr>
|
||
<td>工程侵蚀</td>
|
||
<td>5</td>
|
||
<td>130.67</td>
|
||
<td>0.04</td>
|
||
<td>8.87</td>
|
||
</tr>
|
||
<tr>
|
||
<td>总面积</td>
|
||
<td></td>
|
||
<td>357120.67</td>
|
||
<td>100%</td>
|
||
<td>8.87</td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
</div>
|
||
</div>
|
||
|
||
<div id="menu2" class="tab-pane fade">
|
||
<div class="text_cell_render rendered_html" tabindex="-1"><h2 id="1.遥感影像">1.遥感影像<a class="anchor-link"
|
||
href="#1.遥感影像">¶</a></h2>
|
||
<table width="80%">
|
||
<tbody>
|
||
<tr>
|
||
<th>轨道</th>
|
||
<th>范围</th>
|
||
<th>时相</th>
|
||
</tr>
|
||
<tr>
|
||
<td>131/36</td>
|
||
<td>子区</td>
|
||
<td>20090908</td>
|
||
</tr>
|
||
<tr>
|
||
<td>135/38</td>
|
||
<td>全景</td>
|
||
<td>20090831</td>
|
||
</tr>
|
||
<tr>
|
||
<td>131/37</td>
|
||
<td>子区</td>
|
||
<td>20090916</td>
|
||
</tr>
|
||
<tr>
|
||
<td>136/35</td>
|
||
<td>子区</td>
|
||
<td>20090830</td>
|
||
</tr>
|
||
<tr>
|
||
<td>132/35</td>
|
||
<td>子区</td>
|
||
<td>20090830</td>
|
||
</tr>
|
||
<tr>
|
||
<td>136/36</td>
|
||
<td>全景</td>
|
||
<td>20090831</td>
|
||
</tr>
|
||
<tr>
|
||
<td>132/36</td>
|
||
<td>全景</td>
|
||
<td>20090905</td>
|
||
</tr>
|
||
<tr>
|
||
<td>136/37</td>
|
||
<td>全景</td>
|
||
<td>20090831</td>
|
||
</tr>
|
||
<tr>
|
||
<td>132/37</td>
|
||
<td>全景</td>
|
||
<td>20090905</td>
|
||
</tr>
|
||
<tr>
|
||
<td>137/35
|
||
</td>
|
||
<td>下1/2
|
||
</td>
|
||
<td>20090831
|
||
</td>
|
||
</tr>
|
||
<tr>
|
||
<td>133/35</td>
|
||
<td>全景</td>
|
||
<td>20090928</td>
|
||
</tr>
|
||
<tr>
|
||
<td>137/36</td>
|
||
<td>全景</td>
|
||
<td>20091010</td>
|
||
</tr>
|
||
<tr>
|
||
<td>133/36</td>
|
||
<td>全景</td>
|
||
<td>20090928</td>
|
||
</tr>
|
||
<tr>
|
||
<td>137/37</td>
|
||
<td>全景</td>
|
||
<td>20090830</td>
|
||
</tr>
|
||
<tr>
|
||
<td>133/37</td>
|
||
<td>全景</td>
|
||
<td>20090914</td>
|
||
</tr>
|
||
<tr>
|
||
<td>138/35</td>
|
||
<td>下1/2</td>
|
||
<td>20090830</td>
|
||
</tr>
|
||
<tr>
|
||
<td>134/35</td>
|
||
<td>子区</td>
|
||
<td>20090717</td>
|
||
</tr>
|
||
<tr>
|
||
<td>138/36</td>
|
||
<td>全景</td>
|
||
<td>20090830</td>
|
||
</tr>
|
||
<tr>
|
||
<td>134/36</td>
|
||
<td>全景</td>
|
||
<td>20090717</td>
|
||
</tr>
|
||
<tr>
|
||
<td>138/37</td>
|
||
<td>全景</td>
|
||
<td>20090830</td>
|
||
</tr>
|
||
<tr>
|
||
<td>134/37</td>
|
||
<td>全景</td>
|
||
<td>20090717</td>
|
||
</tr>
|
||
<tr>
|
||
<td>139/35</td>
|
||
<td>全景</td>
|
||
<td>20090829</td>
|
||
</tr>
|
||
<tr>
|
||
<td>134/38</td>
|
||
<td>全景</td>
|
||
<td>20090830</td>
|
||
</tr>
|
||
<tr>
|
||
<td>139/36</td>
|
||
<td>全景</td>
|
||
<td>20090830</td>
|
||
</tr>
|
||
<tr>
|
||
<td>135/35</td>
|
||
<td>子区</td>
|
||
<td>20090830</td>
|
||
</tr>
|
||
<tr>
|
||
<td>139/37</td>
|
||
<td>上1/2</td>
|
||
<td>20090922</td>
|
||
</tr>
|
||
<tr>
|
||
<td>135/36</td>
|
||
<td>全景</td>
|
||
<td>20090830</td>
|
||
</tr>
|
||
<tr>
|
||
<td>140/35</td>
|
||
<td>子区</td>
|
||
<td>20090829</td>
|
||
</tr>
|
||
<tr>
|
||
<td>135/37</td>
|
||
<td>全景</td>
|
||
<td>20090926</td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
|
||
</div>
|
||
</div>
|
||
|
||
<div id="menu3" class="tab-pane fade">
|
||
<div class="text_cell_render rendered_html" tabindex="-1"><h2 id="1.术语与定义">1.术语与定义<a class="anchor-link"
|
||
href="#1.术语与定义">¶</a></h2>
|
||
<h3 id="1)土壤侵蚀强度">1)土壤侵蚀强度<a class="anchor-link" href="#1)土壤侵蚀强度">¶</a></h3>
|
||
<p>土壤侵蚀强度指地壳土壤侵蚀强度表层土壤在自然营力和人类活动综合作用下,单位面积和单位时段内被剥蚀并发生位移的土壤侵蚀量,以土壤侵蚀模数表示。</p>
|
||
<h3 id="2)-水蚀">2) 水蚀<a class="anchor-link" href="#2)-水蚀">¶</a></h3>
|
||
<p>在降水、地表径流、地下径流作用下,土壤、土体或其他地面物质被破坏、搬运和沉积的过程。根据水力作用于地表物质形成不同的侵蚀形态,分为溅蚀、面蚀、细沟侵蚀、浅沟侵蚀和切沟侵蚀等。</p>
|
||
<h3 id="3)-风蚀">3) 风蚀<a class="anchor-link" href="#3)-风蚀">¶</a></h3>
|
||
<p>在气流冲击作用下,土粒、沙粒或岩石碎屑脱离地表,被搬运和堆积的过程。由于风速和地表组成物质的大小及质量不同,风力对土、沙、石粒的吹移搬运出现扬失、跃移和滚动三种运动形式。</p>
|
||
<h3 id="4)-重力侵蚀">4) 重力侵蚀<a class="anchor-link" href="#4)-重力侵蚀">¶</a></h3>
|
||
<p>地面岩体或土体物质在重力作用下失去平衡而产生位移的侵蚀过程根据其形态可分为崩塌、崩岗、滑坡、泻溜等。</p>
|
||
<h3 id="5)-冻融侵蚀">5) 冻融侵蚀<a class="anchor-link" href="#5)-冻融侵蚀">¶</a></h3>
|
||
<p>在高寒区由于寒冻和热融作用交替进行,使地表土体和松散物质发生蠕动、滑塌和泥流等现象。</p>
|
||
<h3 id="6)-人为侵蚀">6) 人为侵蚀<a class="anchor-link" href="#6)-人为侵蚀">¶</a></h3>
|
||
<p>人们不合理的利用自然资源和经济开发中造成新的土壤侵蚀现象。如开矿、采石、修路、建房及工程建设等产生的大量弃土、尾砂、矿碴等带来的泥沙流失。</p>
|
||
<h2 id="2.青海省三江源生态系统遥感监测土壤侵蚀监测指标及分类">2.青海省三江源生态系统遥感监测土壤侵蚀监测指标及分类<a class="anchor-link"
|
||
href="#2.青海省三江源生态系统遥感监测土壤侵蚀监测指标及分类">¶</a>
|
||
</h2>
|
||
<table width="90%">
|
||
<tbody>
|
||
<tr>
|
||
<th>序号</th>
|
||
<th>类型</th>
|
||
<th>监测指标</th>
|
||
</tr>
|
||
<tr>
|
||
<td>1</td>
|
||
<td>水力侵蚀</td>
|
||
<td>微度、轻度、中度、强烈、极强烈、剧烈</td>
|
||
</tr>
|
||
<tr>
|
||
<td>2</td>
|
||
<td>风力侵蚀</td>
|
||
<td>微度、轻度、中度、强烈、极强烈、剧烈</td>
|
||
</tr>
|
||
<tr>
|
||
<td>3</td>
|
||
<td>冻融侵蚀</td>
|
||
<td>微度、轻度、中度、强烈</td>
|
||
</tr>
|
||
<tr>
|
||
<td>4</td>
|
||
<td>重力侵蚀</td>
|
||
<td>不分级</td>
|
||
</tr>
|
||
<tr>
|
||
<td>5</td>
|
||
<td>工程侵蚀</td>
|
||
<td>不分级</td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
|
||
<h2 id="3.青海省三江源生态系统遥感监测水力侵蚀强度分级指标">3.青海省三江源生态系统遥感监测水力侵蚀强度分级指标<a class="anchor-link"
|
||
href="#3.青海省三江源生态系统遥感监测水力侵蚀强度分级指标">¶</a>
|
||
</h2>
|
||
</div>
|
||
|
||
<div class="text_cell_render rendered_html" tabindex="-1">
|
||
<table width="90%">
|
||
<tbody>
|
||
<tr>
|
||
<th colspan="2" width="80">
|
||
<div align="center">地类</div>
|
||
</th>
|
||
<th>
|
||
<div align="center">
|
||
<div align="center">5-8°</div>
|
||
</div>
|
||
</th>
|
||
<th>
|
||
<div align="center">8-15°</div>
|
||
</th>
|
||
<th>
|
||
<div align="center">15-25°</div>
|
||
</th>
|
||
<th>
|
||
<div align="center">25-35°</div>
|
||
</th>
|
||
<th>
|
||
<div align="center">>35°</div>
|
||
</th>
|
||
|
||
</tr>
|
||
<tr>
|
||
<td rowspan="4" width="100">非耕地的林草覆盖度(%)</td>
|
||
<td width="60">60-75</td>
|
||
<td colspan="3">
|
||
<div align="center">轻度</div>
|
||
</td>
|
||
<td colspan="2">
|
||
<div align="center">中度</div>
|
||
</td>
|
||
</tr>
|
||
<tr>
|
||
<td width="60">45-60</td>
|
||
<td colspan="2">
|
||
<div align="center">轻度</div>
|
||
</td>
|
||
<td colspan="2">
|
||
<div align="center">中度</div>
|
||
</td>
|
||
<td>
|
||
<div align="center">强烈</div>
|
||
</td>
|
||
</tr>
|
||
<tr>
|
||
<td width="60">30-45</td>
|
||
<td colspan="1">
|
||
<div align="center">轻度</div>
|
||
</td>
|
||
<td colspan="2">
|
||
<div align="center">中度</div>
|
||
</td>
|
||
<td>
|
||
<div align="center">强烈</div>
|
||
</td>
|
||
<td>
|
||
<div align="center">极强烈</div>
|
||
</td>
|
||
</tr>
|
||
<tr>
|
||
<td width="60"><30</td>
|
||
<td colspan="2">
|
||
<div align="center">中度</div>
|
||
</td>
|
||
<td>
|
||
<div align="center">强烈</div>
|
||
</td>
|
||
<td>
|
||
<div align="center">极烈度</div>
|
||
</td>
|
||
<td>
|
||
<div align="center">剧烈</div>
|
||
</td>
|
||
</tr>
|
||
<tr>
|
||
<td colspan="2">
|
||
<div align="center">坡耕地</div>
|
||
</td>
|
||
<td>
|
||
<div align="center">轻度</div>
|
||
</td>
|
||
<td>
|
||
<div align="center">中度</div>
|
||
</td>
|
||
<td>
|
||
<div align="center">强烈</div>
|
||
</td>
|
||
<td>
|
||
<div align="center">极烈度</div>
|
||
</td>
|
||
<td>
|
||
<div align="center">剧烈</div>
|
||
</td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
</div>
|
||
<div class="text_cell_render rendered_html" tabindex="-1"><h2 id="4.青海省三江源生态系统遥感监测风力侵蚀强度分级指标">
|
||
4.青海省三江源生态系统遥感监测风力侵蚀强度分级指标<a class="anchor-link" href="#4.青海省三江源生态系统遥感监测风力侵蚀强度分级指标">¶</a></h2>
|
||
<table width="90%">
|
||
<tbody>
|
||
<tr>
|
||
<th></th>
|
||
<th>级别</th>
|
||
<th>床面形态(地表形态)</th>
|
||
<th>植覆被盖度(非流沙面积)</th>
|
||
</tr>
|
||
<tr>
|
||
<td>1</td>
|
||
<td>微度</td>
|
||
<td>固定沙丘、沙地和滩地</td>
|
||
<td>>70%</td>
|
||
</tr>
|
||
<tr>
|
||
<td>2</td>
|
||
<td>轻度</td>
|
||
<td>固定沙丘、半固定沙丘、沙地</td>
|
||
<td>70-50%</td>
|
||
</tr>
|
||
<tr>
|
||
<td>3</td>
|
||
<td>中度</td>
|
||
<td>半固定沙丘、沙地</td>
|
||
<td>50-30%</td>
|
||
</tr>
|
||
<tr>
|
||
<td>4</td>
|
||
<td>强烈</td>
|
||
<td>半固定沙丘、流动沙丘、沙地</td>
|
||
<td>30-10%</td>
|
||
</tr>
|
||
<tr>
|
||
<td>5</td>
|
||
<td>极烈</td>
|
||
<td>流动沙丘、沙地</td>
|
||
<td><10%</td>
|
||
</tr>
|
||
<tr>
|
||
<td>6</td>
|
||
<td>剧烈</td>
|
||
<td>大片流动沙丘</td>
|
||
<td><10%</td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
</div>
|
||
|
||
<div class="text_cell_render rendered_html" tabindex="-1"><h2 id="5.青海省三江源生态系统遥感监测土壤侵蚀强度分级监测指标解释">
|
||
5.青海省三江源生态系统遥感监测土壤侵蚀强度分级监测指标解释<a class="anchor-link" href="#5.青海省三江源生态系统遥感监测土壤侵蚀强度分级监测指标解释"></a></h2>
|
||
<table width="90%">
|
||
<tbody>
|
||
<tr>
|
||
<th width="100">侵蚀类型</th>
|
||
<th width="100">侵蚀等级</th>
|
||
<th>
|
||
<div align="center">说明</div>
|
||
</th>
|
||
</tr>
|
||
<tr>
|
||
<td rowspan="6">水力侵蚀</td>
|
||
<td>微度侵蚀</td>
|
||
<td>无土壤侵蚀或者土壤流失不明显,植覆被盖度>75%成片的林、灌、草地和坡度<50的平地,包括滨海、山间、山前平地,河流阶地以及水体、水田、沼泽地等。</td>
|
||
</tr>
|
||
<tr>
|
||
<td>轻度侵蚀</td>
|
||
<td>
|
||
土壤流失比较明显。坡度在5-8°的坡耕地;或者植覆被盖度60-75%之间且坡度为5-25°的坡地;或者覆盖度45-60%且坡度在5-15°的坡地;或者覆盖度30-40%且坡度在5-8°的坡地。
|
||
</td>
|
||
</tr>
|
||
<tr>
|
||
<td>中度侵蚀</td>
|
||
<td>土壤侵蚀十分明显。坡度8-15°的坡耕地;或者坡度8-15°且植覆被盖度<30%坡地;或者坡度15-35°且植覆被盖度为45-60%的坡地;或者坡度>25°且植覆被盖度为60-75%的坡地。</td>
|
||
</tr>
|
||
<tr>
|
||
<td>强烈侵蚀</td>
|
||
<td>土壤侵蚀强烈。植覆被盖度为45-60%且坡度为>35°的坡地;或者植覆被盖度为30-45%且坡度为25-35°的坡地;或者植覆被盖度<30%但坡度在15—25°之间的坡地;坡度为15-25°的坡耕地。</td>
|
||
</tr>
|
||
<tr>
|
||
<td>极烈度侵蚀</td>
|
||
<td>土壤侵蚀十分强烈,主要分布在黄土高原地区。植覆被盖度30-45%且坡度>35°的坡地;或者坡度25-35°但植覆被盖度<30%的坡地。</td>
|
||
</tr>
|
||
<tr>
|
||
<td>剧烈侵蚀</td>
|
||
<td>土壤侵蚀极为强烈,主要分布在黄河中游峡谷地区。植覆被盖度<30%且坡度大于35°的地段及大于35°的耕地。地形破碎的黄土区,植被稀少,植覆被盖度<10%的地区。</td>
|
||
</tr>
|
||
<tr>
|
||
<td rowspan="6">风力侵蚀</td>
|
||
<td>微度侵蚀</td>
|
||
<td>平沙地中出现斑状风蚀坑,梁窝状沙丘迎风坡基本无风蚀,农耕地中有零星的风蚀斑。风蚀地貌占总面积5%以下。斑点状流沙,占总面积5%以下。植覆被盖度大于70%。包括风蚀区的水体。</td>
|
||
</tr>
|
||
<tr>
|
||
<td>轻度侵蚀</td>
|
||
<td>平沙地出现长的风蚀沟,梁窝状沙丘迎风坡出现风蚀破口,农耕地中出现较密线性风蚀沟。风蚀地貌占总面积5-25%。片状流沙、灌丛沙堆,占总面积5-25%。植覆被盖度70-50%</td>
|
||
</tr>
|
||
<tr>
|
||
<td>中度侵蚀</td>
|
||
<td>
|
||
平沙地出现较大的风蚀坑,梁窝状沙丘迎风坡风蚀破口达1/2处,农耕地中出现中等深度的风蚀洼地。风蚀地貌占总面积25-50%。大面积的片状流沙、密集的灌丛沙堆。占总面积25-50%。植覆被盖度50-30%。
|
||
</td>
|
||
</tr>
|
||
<tr>
|
||
<td>强烈侵蚀</td>
|
||
<td>
|
||
平沙地出现较大的风蚀坑,梁窝状沙丘迎风坡风蚀破口达1/2处,农耕地中出现中等深度的风蚀洼地。风蚀地貌占总面积25-50%。大面积的片状流沙、密集的灌丛沙堆。占总面积25-50%。植覆被盖度30-10%。
|
||
</td>
|
||
</tr>
|
||
<tr>
|
||
<td>极强烈侵蚀</td>
|
||
<td>出现深层块状风蚀洼地、风蚀深槽,风蚀地貌占总面积70%以上。或流动平沙地与流动沙丘占总面积70%以上。植覆被盖度10%。</td>
|
||
</tr>
|
||
<tr>
|
||
<td>剧烈侵蚀</td>
|
||
<td>出现极深层片状风蚀盆地、风蚀大深槽、风蚀谷,流动沙丘占总面积90%以上。植覆被盖度小于1%。包括裸岩和石、砾质戈壁。</td>
|
||
</tr>
|
||
<tr>
|
||
<td rowspan="5">冻融侵蚀</td>
|
||
<td>微度侵蚀</td>
|
||
<td>在大片多年冻土条件下,土壤侵蚀强度很小,或几乎不发生侵蚀。主要在高寒和冰川、永久积雪地区。</td>
|
||
</tr>
|
||
<tr>
|
||
<td>轻度侵蚀</td>
|
||
<td>由于地貌类型,气候等的影响,分隔大片多年冻土,呈岛状分布,融化时造成轻度侵蚀。</td>
|
||
</tr>
|
||
<tr>
|
||
<td>中度侵蚀</td>
|
||
<td>年均气温低于-1~-2°,但季节性冻融交替明显,融水可时断时续发生侵蚀。</td>
|
||
</tr>
|
||
<tr>
|
||
<td>强烈侵蚀</td>
|
||
<td>融化水可产生集中较大的径流,发生突发的侵蚀,甚至泥石流,侵蚀强度较大。</td>
|
||
</tr>
|
||
<tr>
|
||
<td colspan="2">
|
||
冻融侵蚀主要发生的环境条件是冰缘环境。其分布受纬度、海拔高程、低温气候的影响,与多年冻土有明显的相关关系。根据冻融发生的温度条件,拨定年平均气温小于1~-2°作为划分冻融侵蚀类型的指标,结合植被类型、海拔高度、地貌部位、温度条件等其它指标划分出冻融侵蚀类型。
|
||
</td>
|
||
</tr>
|
||
<tr>
|
||
<td>重力侵蚀</td>
|
||
<td>不作强烈分级。</td>
|
||
<td></td>
|
||
</tr>
|
||
<tr>
|
||
<td>工程侵蚀</td>
|
||
<td>不作强烈分级。</td>
|
||
<td></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
</div>
|
||
</div>
|
||
</div> |