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* update ei/gdar page

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</ul> </ul>
<div class="tab-content"> <div class="tab-content">
<div id="home" class="tab-pane fade in active"> <div id="home" class="tab-pane fade in active">
<div class="text_cell_render rendered_html" tabindex="-1">
<h2 class="text-center">表1 草地退化和恢复分类面积及比例统计表</h2>
<table>
<tbody>
<tr>
<th rowspan="2">区域</th>
<th rowspan="2">时段</th>
<th colspan="2">退化草地好转</th>
<th colspan="2">无退化</th>
<th colspan="2">轻度退化</th>
<th colspan="2">中度退化</th>
<th colspan="2">重度退化</th>
<th colspan="2">退化草地总面积</th>
</tr>
<tr>
<td>面积</td>
<td>比例</td>
<td>面积</td>
<td>比例</td>
<td>面积</td>
<td>比例</td>
<td>面积</td>
<td>比例</td>
<td>面积</td>
<td>比例</td>
<td>面积</td>
<td>比例</td>
</tr>
<tr>
<td rowspan="3">评价单元1</td>
<td>背景年~基准年</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>
</tr>
<tr>
<td>基准年~评估年</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>
</tr>
<tr>
<td>两时段差值</td>
<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 rowspan="3">评价单元2</td>
<td>背景年~基准年</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>
</tr>
<tr>
<td>基准年~评估年</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>
</tr>
<tr>
<td>两时段差值</td>
<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>
<h2 class="text-center">表2 草地退化状况变化指数统计表</h2>
<table>
<tbody>
<tr>
<th>区域</th>
<th>背景年~基准年</th>
<th>基准年~评估年</th>
<th>两个时段比较</th>
</tr>
<tr>
<td>评价单元1</td>
<td>-</td>
<td>-</td>
<td>-</td>
</tr>
<tr>
<td>评价单元2</td>
<td>-</td>
<td>-</td>
<td>-</td>
</tr>
</tbody>
</table>
</div>
</div> </div>
<div id="menu1" class="tab-pane fade"> <div id="menu1" class="tab-pane fade">
<div class="text_cell_render rendered_html" tabindex="-1"> <div class="text_cell_render rendered_html" tabindex="-1">
@ -298,6 +444,132 @@
</tr> </tr>
</tbody> </tbody>
</table> </table>
<h2 class="text-center">表3 草地退化状况变化指数计算方法</h2>
<p><img src="/images/ei/GDCI.PNG" alt="GDCI">
式中:</p>
<ul>
<li>GDCI--草地退化状况变化指数（无量纲）,大于0表示草地恢复，小于0表示退化;</li>
<li>k--草地退化类型;</li>
<li>A<sub>k</sub>--第k类草地退化类型的专类面积（km<sup>2</sup>）</li>
<li>A--被评价区总面积;</li>
<li>D<sub>a</sub>--转类前的草地退化级别(无量纲)</li>
<li>D<sub>b</sub>--转类后的草地退化级别(无量纲)</li>
</ul>
<h2 class="text-center">表4 草地退化类型与级别</h2>
<table border="1">
<tbody>
<tr>
<th>草地退化类型</th>
<th>好转</th>
<th>未退化</th>
<th>轻度退化</th>
<th>中度退化</th>
<th>重度退化</th>
</tr>
<tr>
<td>退化级别(D)</td>
<td>1</td>
<td>2</td>
<td>3</td>
<td>4</td>
<td>5</td>
</tr>
</tbody>
</table>
<h2 class="text-center">表5 草地退化和恢复状况评价表</h2>
<table>
<tbody>
<tr>
<th>类别</th>
<th colspan="6">
<div align="center">判别等级</div>
</th>
</tr>
<tr>
<td>草地退化和恢复状况</td>
<td>好转面积变化比例</td>
<td>无退化面积变化比例</td>
<td>轻度退化面积变化比例</td>
<td>中度退化面积变化比例</td>
<td>重度退化面积变化比例</td>
<td>退化草地总面积变化比例</td>
</tr>
<tr>
<td>退化趋势没有得到遏制</td>
<td>不变或减少</td>
<td>不变或减少</td>
<td>不变或增加</td>
<td>不变或增加</td>
<td>不变或增加</td>
<td>增加</td>
</tr>
<tr>
<td>退化趋势得到初步遏制，局部好转</td>
<td>不变或增加</td>
<td>不变或增加</td>
<td>不变或减少</td>
<td>不变或减少</td>
<td>不变或减少</td>
<td>减少</td>
</tr>
<tr>
<td>退化趋势明显遏制，初步好转</td>
<td>增加</td>
<td>增加</td>
<td>减少</td>
<td>减少</td>
<td>减少</td>
<td>明显减少</td>
</tr>
</tbody>
</table>
<h2 class="text-center">表6 基于草地退化状况变化的生态系统质量变化评价</h2>
<table>
<tbody>
<tr>
<th>类别</th>
<th colspan="9">
<div align="center">判别等级</div>
</th>
</tr>
<tr>
<td>GDCI</td>
<td>&lt; -5</td>
<td>-5~-2.5</td>
<td>-2.5~-1</td>
<td>-1~-0.01</td>
<td>-0.01~0.01</td>
<td>0.01~1</td>
<td>1~2.5</td>
<td>2.5~5</td>
<td>≥5</td>
</tr>
<tr>
<td>变化程度</td>
<td>显著转差</td>
<td>明显转差</td>
<td>较明显转差</td>
<td>微弱转差</td>
<td>基本不变</td>
<td>微弱转好</td>
<td>较明显转好</td>
<td>明显转好</td>
<td>显著转好</td>
</tr>
<tr>
<td>归一化值</td>
<td>1</td>
<td>2</td>
<td>3</td>
<td>4</td>
<td>5</td>
<td>6</td>
<td>7</td>
<td>8</td>
<td>9</td>
</tr>
</tbody>
</table>
</div> </div>
</div> </div>
<div id="menu2" class="tab-pane fade"> <div id="menu2" class="tab-pane fade">