[Relationships between landscape pattern and water quality at western reservoir area in Shenzhen City].
In this paper, the relationships between landscape pattern and water quality at western reservoir area in Shenzhen City were studied with grey connection method, and the influences of source' and 'sink' landscape patterns on non-point pollution were probed. The results showed that the dominance, adjacency, and fragmentation of 'source' and 'sink' landscapes could markedly influence the water quality. From 2000 to 2001, due to the changes of the 'source' and 'sink' landscape patterns in research areas, the output of pollutants increased and the reduction of pollution decreased, resulting in the deterioration of water quality of three reservoirs. According to the spatial distribution of 'source' and 'sink' landscapes, it was found that the distribution of 'sink' landscapes at the middle-lower reaches of the watersheds had close relationships with the changes of reservoir water quality, suggesting that 'sink' landscape pattern was of significance in the management of non-point pollution.
Yue
Jun
J
Key Laboratory for Environmental and Urban Sciences, Shenzhen Graduate School, Peking University, Shenzhen 518055, Guangdong, China. yuejun163@163.com
Wang
Yang-lin
YL
Li
Gui-cai
GC
Wu
Jian-sheng
JS
Xie
Miao-miao
MM
D002681:China; D002958:City Planning; D003247:Conservation of Natural Resources; D017753:Ecosystem; D011786:Quality Control; D014876:Water Pollution / Q000032:analysis*; D014881:Water Supply / Q000032:analysis* / Q000592:standards