[A landscape ecological approach for urban non-point source pollution control].
Urban non-point source pollution is a new problem appeared with the speeding development of urbanization. The particularity of urban land use and the increase of impervious surface area make urban non-point source pollution differ from agricultural non-point source pollution, and more difficult to control. Best Management Practices (BMPs) are the effective practices commonly applied in controlling urban non-point source pollution, mainly adopting local repairing practices to control the pollutants in surface runoff. Because of the close relationship between urban land use patterns and non-point source pollution, it would be rational to combine the landscape ecological planning with local BMPs to control the urban non-point source pollution, which needs, firstly, analyzing and evaluating the influence of landscape structure on water-bodies, pollution sources and pollutant removal processes to define the relationships between landscape spatial pattern and non-point source pollution and to decide the key polluted fields, and secondly, adjusting inherent landscape structures or/and joining new landscape factors to form new landscape pattern, and combining landscape planning and management through applying BMPs into planning to improve urban landscape heterogeneity and to control urban non-point source pollution.
Guo
Qinghai
Q
Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China. gqhsanmei@sohu.com
Ma
Keming
K
Zhao
Jingzhu
J
Yang
Liu
L
Yin
Chengqing
C
D002958:City Planning; D003247:Conservation of Natural Resources; D017753:Ecosystem; D004787:Environmental Pollution / Q000517:prevention & control*; D014507:Urbanization