摘要
探讨流域土地利用变化的水质响应,有利于从源头上控制水污染。不同学者在多种边界条件下研究了流域土地利用变化的水质响应,发现流域土地利用变化是造成河流水质发生变化的重要原因。根据是否可以将土地利用活动概化为点状,流域土地利用变化的水质响应研究可分为点状土地利用的水质响应和非点状土地利用的水质响应。准确边界土地利用的水质响应一般是研究流域土地利用空间特征和土地利用结构与水质变化的关系。对于用全流域尺度还是用缓冲区的尺度分析土地利用的水质响应更准确仍存在争论。水域边缘几何形状影响了土地利用与水质的关系。
To explore water quality in response to land-use change in a basin is helpful in controling water pollution from the source.Different scholars in a variety of boundary conditions study water quality in response to land-use change in basins,and find that land-use changes in a basin is the important reason why river water quality changes.Depending on whether land-use activities can be summarized into a point,the research of water quality in response to land-use change in a basin can be divided into water quality in response to point-like land-use and water quality in response to non-point land-use.The relationships among spatial characteristics of land use,structure of land use and water quality are studied in the research of water quality in response to land-use change with exact boundary in a basin.It is still controversial in the research on whether to use a whole-basin scale or a buffer-scale is more accurate or not.Waters edge geometry affects the relationship between land use and water quality.
出处
《中国人口·资源与环境》
CSSCI
北大核心
2011年第S1期422-426,共5页
China Population,Resources and Environment
基金
国家自然科学基金项目(编号:70373029)
水利部公益性行业科研专项(编号:201001015)
水利部项目"淮河流域水污染物排污权政策研究"
水利部项目"建立和完善与水有关的生态补偿机制研究"
霍英东基金优选项目(编号:94001)
国家自然科学基金项目(编号:40901297)
关键词
土地利用变化
水质响应
尺度
land-use change
response of water quality
scale
