摘要
农业非点源污染作为引起水质恶化的主要原因之一 ,已越来越受到人们的重视。农业非点源污染的评价是农田管理和水质控制的基础工作 ,对实施农田最佳管理措施具有指导意义。以水体富营养化的限制因子 P为例 ,探讨并介绍了一种对农田生态系统非点源污染敏感性的空间分布进行评价的方法。这种方法通过建立指标体系 ,计算农业非点源污染的敏感性指数 ,确定农业非点源污染的关键源区 ,用来有效地指导农田管理措施 。
Agricultural non point source pollution is arising more and more attentions as one of the major causes leading to deterioration of water quality. Agricultural non point source pollution assessment is the basis of field management and water pollution control, which is significant when carrying out best management practices to farm ecosystems. An approach for assessing spatial distribution of agricultural non point source pollution in farm ecosystems, taking P as an example, is introduced. An index system is suggested and a sensibility index is introduced to identify the critical source areas in the agriculture regions. The approach needs to be modified based on different conditions to which it is applied.
出处
《水土保持学报》
CSCD
北大核心
2001年第2期56-59,共4页
Journal of Soil and Water Conservation
基金
国家自然科学基金面上项目! (499710 72 )
国家自然科学基金重点项目 (498310 2 0 )
关键词
农业非点源污染
敏感性评价
指标体系
敏感性指数
关键源区
水质恶化
agricultural non point source pollution
sensibility assessment
index system
sensibility index
critical source areas
