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| 太湖流域安吉县森林控制土壤侵蚀及养分流失的效益评估 | |
| 引用本文： | 张彪,董敦义,张灿强,杨艳刚,潘春霞,王斌.太湖流域安吉县森林控制土壤侵蚀及养分流失的效益评估[J].水土保持研究,2011,18(6):111-114,118,297. |
| 作者姓名： | 张彪 董敦义 张灿强 杨艳刚 潘春霞 王斌 |
| 作者单位： | 1. 中国科学院地理科学与资源研究所,北京,100101 2. 浙江省安吉县林业局,浙江安吉,313300 3. 中国林科院亚热带林业研究所,浙江富阳,311400 |
| 基金项目： | 国家水污染防治专项“太湖流域水生态功能分区与质量目标管理技术示范”(2008ZX07526-007) |
| 摘 要： | 因土壤流失带来的面源污染是太湖流域水质恶化的主要原因之一,而森林在控制土壤侵蚀以及减少养分流失方面具有重要作用。以安吉县森林资源二类调查数据为基础,采用土壤侵蚀模数法和土壤养分含量估算了森林控制土壤侵蚀及其减少氮、磷养分流失量,并参照污染物入河降解系数与环境资源区域补偿标准,评估了安吉县森林减少氮磷养分流失的生态效益。结果表明：安吉县森林可年均减少151万t土壤侵蚀量,从而控制住土壤中1 409t总氮和577t总磷养分流失,相当于每年避免了824t总氮和410t总磷输入到河流水体中;仅此一项生态服务功能,安吉县森林每年就应得到9 255万元生态补偿资金,约合森林688元/（hm2.a）,相当于目前47元/hm2生态补偿标准的15倍。该研究揭示了太湖流域上游地区森林控制土壤侵蚀及养分流失对于流域水环境保护的重要性,有助于流域水环境污染治理与保护工作的开展。 |
| 关 键 词： | 森林 土壤侵蚀 养分控制 效益评估 太湖流域 安吉县 |
The Benefit Assessment on Reduction of Soil Erosion and Nutrient Loss from the Forests in Anji County of Taihu Basin |
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| ZHANG Biao,DONG Dun-yi,ZHANG Can-qiang,YANG Yan-gang,PAN Chun-xia,WANG Bin.The Benefit Assessment on Reduction of Soil Erosion and Nutrient Loss from the Forests in Anji County of Taihu Basin[J].Research of Soil and Water Conservation,2011,18(6):111-114,118,297. | |
| Authors: | ZHANG Biao DONG Dun-yi ZHANG Can-qiang YANG Yan-gang PAN Chun-xia WANG Bin |
| Institution: | ZHANG Biao1,DONG Dun-yi2,ZHANG Can-qiang1,YANG Yan-gang1,PAN Chun-xia2,WANG Bin3(1.Institute of Geographical Sciences and Natural Resources Research,CAS,Beijing 100101,China,2.Anji Forestry Bureau of Zhejiang,Anji,Zhejiang 313300,3.Research Institute of Subtropical Forestry,Chinese Academy of Forestry,Fuyang,Zhejiang 311400,China) |
| Abstract: | The non-point source pollution due to nutrient input coming from soil erosion has significant impact on the water body eutrophication of Taihu Lake Basin.To deeply realize and fully utilize the role of forest in reducing nutrient loss increasingly becomes an urgent task,based on the forest inventory data in Anji County(2007),the amounts of soil nutrient fixation(including TN and TP) of forests were calculated by means of the soil erosion modulus and nutrient contents,and the monetary values of protecting th... |
| Keywords: | forest soil erosion nutrient control benefit assessment Taihu Basin Anji County |
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