[1]张彪,董敦义,张灿强,等.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(06):111-114,118.
　ZHANG Biao,DONG Dun-yi,ZHANG Can-qiang,et al.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(06):111-114,118.
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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

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 18 期数: 2011年06期 页码: 111-114,118 栏目: 出版日期: 2011-12-20
Title:
The Benefit Assessment on Reduction of Soil Erosion and Nutrient Loss from the Forests in Anji County of Taihu Basin
作者:
张彪1, 董敦义2, 张灿强1, 杨艳刚1, 潘春霞2, 王斌3
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
Author(s):
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, China;
3. Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang, Zhejiang 311400, China
关键词:
森林; 土壤侵蚀; 养分控制; 效益评估; 太湖流域; 安吉县
Keywords:
forest; soil erosion; nutrient control; benefit assessment; Taihu Basin; Anji County
分类号:
S157.1;S714.7
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1 409 t总氮和577 t总磷养分流失，相当于每年避免了824 t总氮和410 t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。
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 the water bodies against nutrients input from soil erosion were estimated by using the river load and degradation ratios as well as the regional compensation standards of environmental resources. The result showed that the forests in Anji County could reduce 1.51×106 Mg/a or 11 Mg/(hm2·a) of soil erosion, decrease the nutrient losses of 1 409 t for total nitrogen and 577 t for total phosphorus, which avoid 824 t of total nitrogen and 410 t of total phosphorus flowing into the rivers. These forests should be compensated 92.55 million Yuan/a or 688 Yuan/(hm2·a), which is 15 times as the current ecological compensation of 47 Yuan/(hm2·a). The results of this study can contribute to the understanding on the role of forest in water environment management in Taihu Lake Basin and the protection and utilization of forest resources.

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备注/Memo

收稿日期:2011-5-17;改回日期:2011-6-10。
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)
作者简介:张彪(1980- )，男，山东郓城人，博士，助研，主要从事生态系统功能与人居环境研究。E-mail：zhangbiao@igsnrr.ac.cn

更新日期/Last Update: 1900-01-01