文档介绍：Appraisal of Beijing wetlands water purification
value

Long Juan, Tang Ming, Zhao Wen-ji, Zhu Lin, Gong Jiang Wei-guo, Hou Pen, Zheng Jian-rui
Zhao-ning, Su Yao-ming Laboratory of Environmental Change and Natural Disaster,
College of Resource Environment and Tourism Beijing Normal University.
Capital Normal University, Beijing 100875, China,
Beijing 100048, China

Abstract—Wetland is a kind of land resources and also a kind of Beijing has a warm-temperature zone, semi-humid and
ecological environment, it play more important role in people continental climate. According to the results of Beijing
daily lives. Wetland has the vital role in the ecosystem such as wetlands resources survey, Beijing wetlands area is 51,400
storage of water, transformation of nutrients, especially its water hm2, accounts for the national total area %. The area of
purification function, which has important economy and natural wetlands is 23,800 hm2, accounts for total area of
ecological value. The wetlands water purifies mainly aims at Beijing wetlands 46%. And the area of artificial wetlands is
nitrogen and phosphorus which causes water body 27,600 hm2, accounts for total area of Beijing wetlands 54%[9].
eutrophication pollutant, the wetlands together with the soil, the
anism and vegetation removes the pollutant. This Beijing’s topography featured by high