+ update ei pages
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@ -7,7 +7,7 @@ var json_tree_intro = '[{"text":"自然地理概况","nodes":[{"text":"地理位
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var json_tree_origin = '[{"text":"遥感监测","nodes":[{"text":"土地利用/土地覆盖","href":"/origin/land_use"},{"text":"生态环境质量状况","href":"/origin/ecology"},{"text":"牧草产量","href":"/origin/forage_yield"},{"text":"土壤侵蚀","href":"/origin/soil_erosion"}]},{"text":"地面监测","nodes":[{"text":"气象监测","href":"/origin/meteorological"},{"text":"水文水资源监测","href":"/origin/hydrology"},{"text":"草地生态监测","href":"/origin/grass"},{"text":"森林监测","href":"/origin/forest"},{"text":"沙化土地监测","href":"/origin/desertification"},{"text":"湿地监测","href":"/origin/wetland"},{"text":"水土保持监测","href":"/origin/soil_and_water_conservation"},{"text":"环境质量监测","href":"/origin/env_quality_monitoring"}]},{"text":"社会经济调查","nodes":[{"text":"人口","href":"#"},{"text":"社会经济","nodes":[{"text":"农牧业产值、经济收入及费用","href":"/origin/se/output_value"},{"text":"基本情况","href":"/origin/se/basic"},{"text":"畜产品产量统计表","href":"/origin/se/animal_products"},{"text":"畜牧业生产效益","href":"/origin/se/spe"},{"text":"禁牧减畜统计表","href":"/origin/se/grazing_prohibition"},{"text":"草原建设","href":"/origin/se/grassland_construction"},{"text":"草食牲畜数量","href":"/origin/se/herbivorous_livestock"}]},{"text":"环境保护机构","href":"#"},{"text":"污染源","href":"#"},{"text":"生态移民","href":"#"},{"text":"工程项目","href":"#"}]}]';
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var json_tree_ei = '[{"text":"生态系统宏观结构","nodes":[{"text":"分类面积","href":"/ei/classification_area"},{"text":"变化率","href":"/ei/rate_of_change"},{"text":"动态度","href":"/ei/dynamic_degree"},{"text":"宏观结构变化指数","href":"/ei/emsci"},{"text":"群落结构特征"}]},{"text":"生态系统质量","nodes":[{"text":"草地退化/恢复","href":"/ei/gdar"},{"text":"植被状况","href":"/ei/vegetation_status"},{"text":"宏观生态状况"},{"text":"植物物种多样性","href":"/ei/plant_species_diversity"},{"text":"环境质量","href":"/ei/env_uality"},{"text":"多年冻土上限","href":"/ei/permafrost_upper_limit"},{"text":"生态系统质量变化指数","href":"/ei/ecosystem_quality_change_index"}]},{"text":"生态系统服务功能","nodes":[{"text":"水源涵养","href":"/ei/water_conservation"},{"text":"土壤保持"},{"text":"防风固沙"},{"text":"牧草供给"},{"text":"水供给"},{"text":"生态系统服务功能变化指数"}]},{"text":"生态系统变化的影响","nodes":[{"text":"气候变化"},{"text":"人类活动"}]}]';
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var json_tree_ei = '[{"text":"生态系统宏观结构","nodes":[{"text":"分类面积","href":"/ei/classification_area"},{"text":"变化率","href":"/ei/rate_of_change"},{"text":"动态度","href":"/ei/dynamic_degree"},{"text":"宏观结构变化指数","href":"/ei/emsci"},{"text":"群落结构特征"}]},{"text":"生态系统质量","nodes":[{"text":"草地退化/恢复","href":"/ei/gdar"},{"text":"植被状况","href":"/ei/vegetation_status"},{"text":"宏观生态状况"},{"text":"植物物种多样性","href":"/ei/plant_species_diversity"},{"text":"环境质量","href":"/ei/env_uality"},{"text":"多年冻土上限","href":"/ei/permafrost_upper_limit"},{"text":"生态系统质量变化指数","href":"/ei/ecosystem_quality_change_index"}]},{"text":"生态系统服务功能","nodes":[{"text":"水源涵养","href":"/ei/water_conservation"},{"text":"土壤保持","href":"/ei/soil_conservation"},{"text":"防风固沙","href":"/ei/wind_and_sand"},{"text":"牧草供给"},{"text":"水供给"},{"text":"生态系统服务功能变化指数"}]},{"text":"生态系统变化的影响","nodes":[{"text":"气候变化"},{"text":"人类活动"}]}]';
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16
routes/ei.js
16
routes/ei.js
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@ -105,6 +105,22 @@ router.get('/water_conservation', function (req, res, next) {
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});
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});
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router.get('/soil_conservation', function (req, res, next) {
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res.render('ei', {
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page_title: '土壤保持',
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page_cont: 'inc',
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inc_tag: 'soil_conservation'
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});
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});
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router.get('/wind_and_sand', function (req, res, next) {
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res.render('ei', {
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page_title: '防风固沙',
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page_cont: 'inc',
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inc_tag: 'wind_and_sand'
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});
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});
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// Vegetation status
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@ -0,0 +1,440 @@
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<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.土壤侵蚀模数及其变化统计表</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.生态系统土壤保持量及其变化统计表</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">3.生态系统土壤保持服务功能保有率及其变化统计表</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">4.主要河流径流含沙量及其变化统计表</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>黄河流域</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>长江流域</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>澜沧江流域</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">5.土壤风蚀模数及其变化统计表</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">生态系统土壤保持功能变化评价</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>SPCI</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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土壤保持服务功能变化指数（SPCI）计算方法：<p></p>
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<p></p>
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<div align="center">SPCI=SPC<sub>A</sub>+SPC<sub>SK</sub>+SPC<sub>SP</sub>+SPC<sub>RS</sub></div>
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式中:<p></p>
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<ul>
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<li>SPCI -- 土壤保持服务功能变化指数;</li>
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<li>SPC<sub>A</sub> -- 土壤水蚀模数的归一化值;</li>
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<li>SPC<sub>SK</sub> -- 土壤保持量的归一化值;</li>
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<li>SPC<sub>SP</sub> -- 土壤保持服务功能保有率的归一化值;</li>
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<li>SPC<sub>RS</sub> -- 河流径流含沙量的归一化值;</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.根据土壤水蚀模数和河流径流含沙量统计结果的变化率，判断区域生态系统土壤保持服务功能变化程度</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>10~15</td>
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<td>5~10</td>
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<td>1~5</td>
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<td>-1~1</td>
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<td>-5~-1</td>
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<td>-10~-5</td>
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<td>-15~-10</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.根据土壤保持量和土壤保持服务功能保有率统计结果的变化率，判断区域生态系统土壤保持服务功能变化程度</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>
|
||||
<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>
|
||||
</div>
|
||||
<div class="text_cell_render rendered_html" tabindex="-1">
|
||||
<h2 class="text-center">4.土壤水蚀模数估算方法</h2>
|
||||
<p>可利用水土流失地面监测数据、水文站径流含沙量观测数据计算。也可根据修正的通用土壤流失方程（RUSLE）计算，公式如下:</p>
|
||||
<p></p>
|
||||
<div align="center">A=R×K×L×S×C×P</div>
|
||||
式中：<p></p>
|
||||
<ul>
|
||||
<li>A -- 土壤水蚀模数(t∙hm<sup>-2</sup>∙a<sup>-1</sup>);</li>
|
||||
<li>R -- 降雨侵蚀力因子(),见表“土壤水蚀模数估算方程参数设置及计算方法”;</li>
|
||||
<li>K -- 土壤可蚀性因子(),见表“土壤水蚀模数估算方程参数设置及计算方法”</li>
|
||||
<li>L -- 坡长因子(无量纲);</li>
|
||||
<li>S -- 坡度因子(无量纲);</li>
|
||||
<li>C -- 覆盖和管理因子(无量纲),取值范围为0~1,见表“土壤水蚀模数估算方程参数设置及计算方法”;</li>
|
||||
<li>P -- 水土保持措施因子(无量纲),取值范围为0~1,取值为0.95;
|
||||
<div align="center">表 土壤水蚀模数估算方程参数设置及计算方法</div>
|
||||
<table width="90%">
|
||||
<tbody>
|
||||
<tr>
|
||||
<th>序号</th>
|
||||
<th>参数</th>
|
||||
<th width="75%">计算公式与参数设置</th>
|
||||
</tr>
|
||||
<tr>
|
||||
<td>1</td>
|
||||
<td>降雨侵蚀力因子(R)</td>
|
||||
<td>-</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td>2</td>
|
||||
<td>土壤可蚀性因子(K)</td>
|
||||
<td>-</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td>3</td>
|
||||
<td>坡长坡度因子(LS)</td>
|
||||
<td>-</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td>4</td>
|
||||
<td>植被覆盖因子(C)</td>
|
||||
<td>-</td>
|
||||
</tr>
|
||||
</tbody>
|
||||
</table>
|
||||
</li>
|
||||
</ul>
|
||||
</div>
|
||||
<div class="text_cell_render rendered_html" tabindex="-1">
|
||||
<h2 class="text-center">5.生态系统土壤保持量估算方法</h2>
|
||||
<p></p>
|
||||
<div align="center">SK=SK<sub>q</sub>-SK<sub>r</sub></div>
|
||||
<p></p>
|
||||
<p></p>
|
||||
<div align="center">SK<sub>q</sub>=A<sub>q</sub>×M</div>
|
||||
<p></p>
|
||||
<p></p>
|
||||
<div align="center">SK<sub>r</sub>=A<sub>r</sub>×M</div>
|
||||
式中:<p></p>
|
||||
<ul>
|
||||
<li>SK -- 计算单元上的生态系统土壤保持量(t∙a<sup>-1</sup>)</li>
|
||||
<li>SK<sub>q</sub> -- 计算单元上无植被保护下的潜在土壤侵蚀量(t∙a<sup>-1</sup>);</li>
|
||||
<li>SK<sub>r</sub> -- 计算单元上现实覆被状态下的土壤侵蚀量(t∙a<sup>-1</sup>);</li>
|
||||
<li>A<sub>q</sub> -- 计算单元上无植被保护下的潜在土壤侵蚀模数(t∙hm<sup>-2</sup>∙a<sup>-1</sup>);</li>
|
||||
<li>A<sub>r</sub> -- 计算单元上现实覆被状态下的土壤侵蚀模数(t∙hm<sup>-2</sup>∙a<sup>-1</sup>);</li>
|
||||
<li>M -- 计算单元的面积(hm<sup>2</sup>)</li>
|
||||
</ul>
|
||||
</div>
|
||||
<div class="text_cell_render rendered_html" tabindex="-1">
|
||||
<h2 class="text-center">6.生态系统土壤保持服务功能保有率计算方法</h2>
|
||||
<p></p>
|
||||
<div align="center"><img src="/images/ei/SP.PNG" alt=""></div>
|
||||
式中:<p></p>
|
||||
<ul>
|
||||
<li>SP -- 评估单元的某类生态系统土壤保持服务功能保有率(%);</li>
|
||||
<li>SK -- 评估单元上某类生态系统的土壤保持量(t);</li>
|
||||
<li>SK<sub>g</sub> -- 三江源区同类最优生态系统的土壤保持量(t).</li>
|
||||
</ul>
|
||||
</div>
|
||||
</div>
|
||||
<div id="menu2" class="tab-pane fade">
|
||||
<h4>数据源</h4>
|
||||
</div>
|
||||
</div>
|
||||
|
|
@ -0,0 +1,373 @@
|
|||
<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.土壤风蚀模数及其变化统计表</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>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.生态系统防风固沙量及其变化统计表</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">3.生态系统防风固沙服务功能保有率及其变化统计表</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>
|
||||
</div>
|
||||
</div>
|
||||
<div id="menu1" class="tab-pane fade">
|
||||
<div class="text_cell_render rendered_html" tabindex="-1">
|
||||
<h2 class="text-center">1.生态系统防风固沙服务功能变化评价</h2>
|
||||
<p></p>
|
||||
<p></p>
|
||||
<p></p>
|
||||
<p></p>
|
||||
<p></p>
|
||||
<p></p>
|
||||
<table width="90%">
|
||||
<tbody>
|
||||
<tr>
|
||||
<th>类别</th>
|
||||
<th colspan="9">
|
||||
<div align="center">判别等级</div>
|
||||
</th>
|
||||
</tr>
|
||||
<tr>
|
||||
<td>FSCI</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>
|
||||
防风固沙服务功能变化指数（SPCI）计算方法：<p></p>
|
||||
<p></p>
|
||||
<div align="center">FSCI=0.4FSC<sub>SL</sub>+0.3FSC<sub>FS</sub>+0.3FSC<sub>FP</sub></div>
|
||||
式中:<p></p>
|
||||
<ul>
|
||||
<li>FSCI -- 防风固沙服务功能变化指数;</li>
|
||||
<li>FSC<sub>SL</sub> -- 土壤风蚀模数的归一化值;</li>
|
||||
<li>FSC<sub>FS</sub> -- 防风固沙量的归一化值;</li>
|
||||
<li>FSC<sub>FP</sub> -- 防风固沙服务功能保有率的归一化值。</li>
|
||||
</ul>
|
||||
</div>
|
||||
<div class="text_cell_render rendered_html" tabindex="-1">
|
||||
<h2 class="text-center">2.根据土壤风蚀模数的统计结果变化率，判断区域生态系统防风固沙服务功能变化</h2>
|
||||
<table width="90%">
|
||||
<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>>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>
|
||||
<div class="text_cell_render rendered_html" tabindex="-1">
|
||||
<h2 class="text-center">3.-根据防风固沙量和放风固沙服务功能保有率的统计结果变化率，判断区域生态系统防风固沙服务功能变化程度</h2>
|
||||
<table width="90%">
|
||||
<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><-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>
|
||||
</div>
|
||||
<div class="text_cell_render rendered_html" tabindex="-1">
|
||||
<h2 class="text-center">4.土壤风蚀模数估算方法</h2>
|
||||
<p>采用修正风蚀方程（RWEQ）计算：</p>
|
||||
<p></p>
|
||||
<div align="center"><img src="/images/ei/SL.PNG" alt="SL"></div>
|
||||
<p></p>
|
||||
<p></p>
|
||||
<div align="center"><img src="/images/ei/QX.PNG" alt="QX"></div>
|
||||
<p></p>
|
||||
<p></p>
|
||||
<div align="center"><img src="/images/ei/Qmax.PNG" alt="Qmax"></div>
|
||||
<p></p>
|
||||
<p></p>
|
||||
<div align="center"><img src="/images/ei/S.PNG" alt="S"></div>
|
||||
式中：<p></p>
|
||||
<ul>
|
||||
<li>SL -- 土壤风蚀模数(kg/m<sup>2</sup>);</li>
|
||||
<li>X -- 地块长度(m),取值100m;</li>
|
||||
<li>Qx -- 地块长度x处的沙通量;</li>
|
||||
<li>Qmax -- 风力的最大输沙能力(kg/m)</li>
|
||||
<li>S -- 关键地块长度(m)</li>
|
||||
<li>WF -- 气象因子(kg/m)</li>
|
||||
<li>EF -- 土壤可蚀性成分</li>
|
||||
<li>SCF -- 土壤结皮因子</li>
|
||||
<li>K' -- 土壤糙度因子(无量纲)</li>
|
||||
<li>COG -- 植被因子(无量纲)
|
||||
<div align="center">表 土壤风蚀模数估算方程参数设置及计算方法</div>
|
||||
<table>
|
||||
<tbody>
|
||||
<tr>
|
||||
<th>序号</th>
|
||||
<th>参数</th>
|
||||
<th>计算公式与参数设置</th>
|
||||
</tr>
|
||||
<tr>
|
||||
<td>1</td>
|
||||
<td>气候因子(WF)</td>
|
||||
<td>-</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td>2</td>
|
||||
<td>土壤可蚀性因子(EF)</td>
|
||||
<td>-</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td>3</td>
|
||||
<td>土壤结皮因子(SCF)</td>
|
||||
<td>-</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td>4</td>
|
||||
<td>土壤糙度因子(K<sup>'</sup>)</td>
|
||||
<td>-</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td>5</td>
|
||||
<td>植被因子(COG)</td>
|
||||
<td>-</td>
|
||||
</tr>
|
||||
</tbody>
|
||||
</table>
|
||||
</li>
|
||||
</ul>
|
||||
</div>
|
||||
<div class="text_cell_render rendered_html" tabindex="-1">
|
||||
<h2 class="text-center">5.防风固沙量计算方法</h2>
|
||||
<p></p>
|
||||
<div align="center">FS=FS<sub>q</sub>-FS<sub>r</sub></div>
|
||||
<p></p>
|
||||
<p></p>
|
||||
<div align="center">FS<sub>q</sub>=SL<sub>q</sub>×M</div>
|
||||
<p></p>
|
||||
<p></p>
|
||||
<div align="center">FS<sub>r</sub>=SL<sub>r</sub>×M</div>
|
||||
式中：<p></p>
|
||||
<ul>
|
||||
<li>FS -- 计算单元上的生态系统防风固沙量(t∙a<sup>-1</sup>);</li>
|
||||
<li>FS<sub>q</sub> -- 计算单元上无植被保护下的潜在土壤风蚀量(t∙a<sup>-1</sup>);</li>
|
||||
<li>FS<sub>r</sub> -- 计算单元上现实覆被状态下的土壤风蚀量(t∙a<sup>-1</sup>);</li>
|
||||
<li>SL<sub>q</sub> -- 计算单元上无植被保护下的潜在土壤风蚀模数(t∙hm<sup>-2</sup>∙a<sup>-1</sup>);</li>
|
||||
<li>SL<sub>r</sub> -- 计算单元上现实覆被状态下的土壤风蚀模数(t∙hm<sup>-2</sup>∙a<sup>-1</sup>);</li>
|
||||
<li>M -- 计算单元面积(hm<sup>2</sup>)</li>
|
||||
</ul>
|
||||
</div>
|
||||
<div class="text_cell_render rendered_html" tabindex="-1">
|
||||
<h2 class="text-center">6.防风固沙服务功能保有率计算方法</h2>
|
||||
<p></p>
|
||||
<div align="center"><img src="/images/ei/FP.PNG" alt="FP"></div>
|
||||
式中：<p></p>
|
||||
<ul>
|
||||
<li>FP -- 评估单元的某类系统防风固沙服务功能保有率(%);</li>
|
||||
<li>FS -- 评估单元上某类生态系统的防风固沙量(t);</li>
|
||||
<li>FSg -- 三江源区同类最优生态系统的防风固沙量(t);</li>
|
||||
</ul>
|
||||
</div>
|
||||
</div>
|
||||
<div id="menu2" class="tab-pane fade">
|
||||
<h4>数据源</h4>
|
||||
</div>
|
||||
</div>
|
||||
Loading…
Reference in New Issue