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<ul class="nav nav-tabs">
<li class="active"><a data-toggle="tab" href="#home">评估结果</a></li>
<li><a data-toggle="tab" href="#menu1">技术规范</a></li>
<li><a data-toggle="tab" href="#menu2">数据源</a></li>
</ul>
<div class="tab-content">
<div id="home" class="tab-pane fade in active">
<div class="text_cell_render rendered_html" tabindex="-1">
<h2 class="text-center">1.生态系统水源涵养量及其变化统计表</h2>
<table width="90%">
<tbody>
<tr>
<th rowspan="2">区域</th>
<th colspan="2">背景年~基准年</th>
<th colspan="2">基准年~评估年</th>
<th colspan="2">两时段平均值</th>
</tr>
<tr>
<th>平均值</th>
<th>倾斜率</th>
<th>平均值</th>
<th>倾斜率</th>
<th>差值</th>
<th>变化率</th>
</tr>
<tr>
<td>评价单元1</td>
<td>-</td>
<td>-</td>
<td>-</td>
<td>-</td>
<td>-</td>
<td>-</td>
</tr>
<tr>
<td>评价单元2</td>
<td>-</td>
<td>-</td>
<td>-</td>
<td>-</td>
<td>-</td>
<td>-</td>
</tr>
</tbody>
</table>
<h2 class="text-center">2.生态系统水源涵养服务功能保有率及其变化统计</h2>
<table width="90%">
<tbody>
<tr>
<th rowspan="2">区域</th>
<th colspan="2">背景年~基准年</th>
<th colspan="2">基准年~评估年</th>
<th colspan="2">两时段平均值</th>
</tr>
<tr>
<th>平均值</th>
<th>倾斜率</th>
<th>平均值</th>
<th>倾斜率</th>
<th>差值</th>
<th>变化率</th>
</tr>
<tr>
<td>评价单元1</td>
<td>-</td>
<td>-</td>
<td>-</td>
<td>-</td>
<td>-</td>
<td>-</td>
</tr>
<tr>
<td>评价单元2</td>
<td>-</td>
<td>-</td>
<td>-</td>
<td>-</td>
<td>-</td>
<td>-</td>
</tr>
</tbody>
</table>
<h2 class="text-center">3. 主要河流枯水季径流量及其变化统计表</h2>
<table width="90%">
<tbody>
<tr>
<th rowspan="2">区域</th>
<th colspan="2">背景年~基准年</th>
<th colspan="2">基准年~评估年</th>
<th colspan="2">两时段平均值</th>
</tr>
<tr>
<th>平均值</th>
<th>倾斜率</th>
<th>平均值</th>
<th>倾斜率</th>
<th>差值</th>
<th>变化率</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>
</tbody>
</table>
<h2 class="text-center">4.夏季径流调节系数及其变化统计表</h2>
<table width="90%">
<tbody>
<tr>
<th rowspan="2">区域</th>
<th colspan="2">背景年~基准年</th>
<th colspan="2">基准年~评估年</th>
<th colspan="2">两时段平均值</th>
</tr>
<tr>
<th>平均值</th>
<th>倾斜率</th>
<th>平均值</th>
<th>倾斜率</th>
<th>差值</th>
<th>变化率</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>
</tbody>
</table>
</div>
</div>
<div id="menu1" class="tab-pane fade">
<div class="text_cell_render rendered_html" tabindex="-1">
<h2 class="text-center">1.基于水源涵养量、水源涵养服务功能保有率和河流枯水季径流量的生态系统水源涵养服务功能变化判断</h2>
<p>根据生态系统水源涵养量、水源涵养服务功能保有率和河流枯水季净流量的统计结果变化率，判断区域生态系统水源涵养服务功能变化程度。</p>
<table>
<tbody>
<tr>
<th>类别</th>
<th colspan="9">
<div align="center">判别等级</div>
</th>
</tr>
<tr>
<td>变化率(%)</td>
<td>&lt;-15</td>
<td>-15~-10</td>
<td>-10~-5</td>
<td>-5~-1</td>
<td>-1~1</td>
<td>1~5</td>
<td>5~10</td>
<td>10~15</td>
<td>≥15</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>
<h2 class="text-center">2.基于夏季径流调节系数的生态系统水源涵养服务功能变化判断</h2>
<p>根据夏季径流系数的统计结果变化率，判断区域生态系统水源涵养服务功能变化程度。</p>
<table>
<tbody>
<tr>
<th>类别</th>
<th colspan="9">
<div align="center">判别等级</div>
</th>
</tr>
<tr>
<td>变化率(%)</td>
<td>&gt;15</td>
<td>10~15</td>
<td>5~10</td>
<td>1~5</td>
<td>-1~1</td>
<td>-5~-1</td>
<td>-10~-5</td>
<td>-15~-10</td>
<td>≤-15</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 class="text_cell_render rendered_html" tabindex="-1">
<h2 class="text-center">3.生态系统水源涵养服务功能变化评价</h2>
<p></p>
<table>
<tbody>
<tr>
<th>类别</th>
<th colspan="9">
<div align="center">判别等级</div>
</th>
</tr>
<tr>
<td>WRCI</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>
<tr>
<td>评价结果</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>
</tbody>
</table>
水源涵养服务功能变化指数计算公式:<p></p>
<p></p>
<div align="center">WRCI =
0.3WRC<sub>W</sub>+0.3WRC<sub>WP</sub>+0.3WRC<sub>RW</sub>+0.1WRC<sub>RS</sub></div>
式中：<p></p>
<ul>
<li>WRCI -- 水源涵养服务功能变化指数;</li>
<li>WRC<sub>W</sub> -- 水源涵养量的归一化值</li>
<li>WRC<sub>WP</sub> -- 水源涵养服务功能保有率的归一化值</li>
<li>WRC<sub>RW</sub> -- 河流枯水季净流量的归一化值</li>
<li>WRC<sub>RS</sub> -- 河流夏季净流量的归一化值</li>
</ul>
</div>
<div class="text_cell_render rendered_html" tabindex="-1">
<h2 class="text-center">4.生态系统水源涵养量估算方法</h2>
<p></p>
<div align="center">W = 10A×P×R .....................................................(1)</div>
<p></p>
<p></p>
<div align="center">P = P<sub>0</sub>×K ............................................................(2)
</div>
<p></p>
<p></p>
<div align="center">R = R<sub>0</sub>-R<sub>g</sub>
...........................................................(3)
</div>
<p></p>
<p></p>
<div align="center">Rg = -0.3187×F<sub>c</sub>+0.36403 .................................(4)</div>
式中：<p></p>
<ul>
<li>W -- 与裸地相比较，森林、草地等生态系统涵养水分的增加量;</li>
<li>A -- 生态系统面积（hm<sup>2</sup>）</li>
<li>P -- 年产流降水量(mm);</li>
<li>P<sub>0</sub> -- 年均降雨量(mm);</li>
<li>R -- 与裸地相比较，生态系统减少径流的效益系数。对于森林生态系统，温带针叶林取值0.24，温带落叶疏林取值0.16，对于草地生态系统则使用公式（3）计算;</li>
<li>R<sub>0</sub> -- 产流降雨条件下裸地降雨净流率，取值0.36403;</li>
<li>R<sub>g</sub> -- 产流降雨条件下生态系统降雨净流率;</li>
<li>K -- 产流降雨量占降雨量的比例，取值0.68;</li>
</ul>
</div>
</div>
<div class="text_cell_render rendered_html" tabindex="-1">
<h2 class="text-center">5.夏汛期径流调节系数的计算方法</h2>
<p></p>
<div align="center"><img src="/images/ei/RS.PNG" alt="RS"></div>
<p></p>
<p></p>
<div align="center"><img src="/images/ei/CVR.PNG" alt="CVR"></div>
<p></p>
<p></p>
<div align="center"><img src="/images/ei/CVR.PNG" alt="CVR"></div>
式中：<p></p>
<ul>
<li>RS -- 夏汛期径流调节系数;</li>
<li>CV<sub>r</sub> -- 夏汛期径流量变异系数;</li>
<li>SD<sub>r</sub> -- 夏汛期径流量的标准差;</li>
<li>M<sub>r</sub> -- 夏汛期径流量平均值（m<sup>3</sup>/s）;</li>
<li>CV<sub>p</sub> -- 夏汛期降水量变异系数;</li>
<li>SD<sub>p</sub> -- 夏汛期降水量标准差;</li>
<li>M<sub>p</sub> -- 夏汛期降水量平均差(mm);</li>
</ul>
</div>
</div>
<div id="menu2" class="tab-pane fade">
<h4>数据源</h4>
</div>
</div>
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