230 lines
6.3 KiB
Plaintext
230 lines
6.3 KiB
Plaintext
<ul class="nav nav-tabs">
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<li class="active"><a data-toggle="tab" href="#home">评估结果</a></li>
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<li><a data-toggle="tab" href="#menu1">技术规范</a></li>
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<li><a data-toggle="tab" href="#menu2">数据源</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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<h2 class="text-center">1.草地产草量及其变化统计</h2>
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<table width="90%">
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<tbody>
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<tr>
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<th rowspan="2">区域</th>
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<th colspan="2">背景年~基准年</th>
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<th colspan="2">基准年~评估年</th>
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<th colspan="2">两时段平均值</th>
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</tr>
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<tr>
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<th>平均值</th>
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<th>倾斜率</th>
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<th>平均值</th>
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<th>倾斜率</th>
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<th>差值</th>
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<th>变化率</th>
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</tr>
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<tr>
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<td>评价单元1</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>评价单元2</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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</tbody>
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</table>
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<h2 class="text-center">2.草地理论载畜量及其变化统计</h2>
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<table width="90%">
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<tbody>
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<tr>
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<th rowspan="2">区域</th>
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<th colspan="2">背景年~基准年</th>
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<th colspan="2">基准年~评估年</th>
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<th colspan="2">两时段平均值</th>
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</tr>
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<tr>
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<th>平均值</th>
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<th>倾斜率</th>
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<th>平均值</th>
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<th>倾斜率</th>
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<th>差值</th>
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<th>变化率</th>
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</tr>
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<tr>
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<td>评价单元1</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>评价单元2</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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</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">
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<h2 class="text-center">1.生态系统牧草供给服务功能变化评价</h2>
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<p></p>
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<p></p>
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<p></p>
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<p></p>
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<p></p>
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<p></p>
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<table width="90%">
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<tbody>
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<tr>
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<th>类别</th>
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<th colspan="9">
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<div align="center">判别等级</div>
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</th>
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</tr>
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<tr>
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<td>HSCI</td>
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<td>1</td>
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<td>2</td>
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<td>3</td>
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<td>4</td>
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<td>5</td>
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<td>6</td>
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<td>7</td>
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<td>8</td>
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<td>9</td>
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</tr>
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<tr>
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<td>评价结果</td>
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<td>显著转差</td>
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<td>明显转差</td>
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<td>较明显转差</td>
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<td>微弱转差</td>
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<td>基本不变</td>
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<td>微弱转好</td>
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<td>较明显转好</td>
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<td>明显转好</td>
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<td>显著转好</td>
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</tr>
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</tbody>
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</table>
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防风固沙服务功能变化指数(SPCI)计算方法:<p></p>
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<p></p>
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<div align="center">HSCI=0.5HSC<sub>GY</sub>+0.5HSC<sub>CL</sub></div>
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式中:<p></p>
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<ul>
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<li>HSCI -- 防风固沙服务功能变化指数;</li>
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<li>HSC<sub>GY</sub> -- 土壤风蚀模数的归一化值;</li>
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<li>HSC<sub>CL</sub> -- 防风固沙量的归一化值;</li>
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</ul>
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</div>
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<div class="text_cell_render rendered_html" tabindex="-1">
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<h2 class="text-center">2.-基于草地产草量和理论载畜量的生态系统牧草供给服务功能变化判断</h2>
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<table width="90%">
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<tbody>
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<tr>
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<th>类别</th>
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<th colspan="9">
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<div align="center">判别等级</div>
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</th>
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</tr>
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<tr>
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<td>变化率(%)</td>
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<td><-15</td>
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<td>-15~-10</td>
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<td>-10~-5</td>
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<td>-5~-1</td>
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<td>-1~1</td>
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<td>1~5</td>
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<td>5~10</td>
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<td>10~15</td>
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<td>≥15</td>
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</tr>
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<tr>
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<td>变化程度</td>
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<td>显著转差</td>
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<td>明显转差</td>
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<td>较明显转差</td>
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<td>微弱转差</td>
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<td>基本不变</td>
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<td>微弱转好</td>
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<td>较明显转好</td>
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<td>明显转好</td>
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<td>显著转好</td>
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</tr>
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<tr>
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<td>归一化值</td>
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<td>1</td>
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<td>2</td>
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<td>3</td>
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<td>4</td>
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<td>5</td>
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<td>6</td>
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<td>7</td>
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<td>8</td>
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<td>9</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">
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<h2 class="text-center">3.草地产草量估算方法</h2>
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<p>可实地测量获得,活利用植被指数遥感数据与实测产草量建立的经验公式获得,也可以基于生态模型模拟的植被净初级生产力(NPP)数据计算获得:</p>
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<p></p>
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<div align="center"><img src="/images/ei/GY.PNG" alt="GY"></div>
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<p></p>
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<p></p>
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<div align="center"><img src="/images/ei/BNPP.PNG" alt="BNPP"></div>
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<p></p>
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<p></p>
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<div align="center"><img src="/images/ei/turnover.PNG" alt="turnover"></div>
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式中:<p></p>
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<ul>
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<li>GY -- 草地产草量(g/m<sup>2</sup>);</li>
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<li>NPP -- 植被初级生产力(g/m<sup>2</sup>);</li>
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<li>A<sub>NPP</sub> -- 草地植被地上部分生产力(g/m<sup>2</sup>);</li>
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<li>B<sub>NPP</sub> -- 草地植被地下部分生产力(g/m<sup>2</sup>);</li>
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<li>BGB -- 草地植被地下部分(根系)生物量(g/m<sup>2</sup>);</li>
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<li>liveBGB -- 活根系生物量占总根系生物量的比例(%);</li>
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<li>turnover -- 草地植物根系周转值(无量纲);</li>
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</ul>
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</div>
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<div class="text_cell_render rendered_html" tabindex="-1">
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<h2 class="text-center">草地理论载畜量估算方法</h2>
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<p>草地理论载畜量又称合理载畜量,计算方法如下:</p>
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<p></p>
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<div align="center"><img src="/images/ei/Cl.PNG" alt="Cl"></div>
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式中:<p></p>
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<ul>
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<li>C<sub>l</sub> -- 单位面积草地可承载的家畜数量(羊单位/hm<sup>2</sup>);</li>
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<li>Y<sub>m</sub> -- 单位面积草地产草量(kg/hm<sup>2</sup>);</li>
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<li>U<sub>t</sub> -- 放牧利用率(%);</li>
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<li>C<sub>o</sub> -- 草地可利用率(%);</li>
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<li>H<sub>a</sub> -- 草地可食牧草比例(%);</li>
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<li>S<sub>f</sub> -- 一个羊单位家畜的日食量(kg/羊单位/日);</li>
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<li>D<sub>f</sub> -- 草地牧草的标准干草折算系数(%);</li>
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<li>G<sub>f</sub> -- 放牧草地的放牧天数(天)</li>
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</ul>
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</div>
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</div>
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<div id="menu2" class="tab-pane fade">
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<h4>数据源</h4>
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</div>
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</div> |