HR: 15:45h
AN: H23A-08    [Abstracts]
TI: Ecosystem Health Assessment of Urban Water Systems in Haihe River Basin, People's Republic of China
AU: * Liu, J
EM: jingling@bnu.edu.cn
AF: Beijing Normal University, State Key Laboratory of Environmental Simulation and Pollution Control, Beijing Normal University 100875, China, Beijing, 100875, China
AU: Zhang, F
AF: Beijing Normal University, State Key Laboratory of Environmental Simulation and Pollution Control, Beijing Normal University 100875, China, Beijing, 100875, China
AU: Li, Y
AF: Beijing Normal University, State Key Laboratory of Environmental Simulation and Pollution Control, Beijing Normal University 100875, China, Beijing, 100875, China
AB: The Haihe River Basin contains large urban centers and a significant portion of the population of China. The assessment of ecosystem health of urban water systems is the scientific basis for the basin water resources management and ecological restoration. An indicator system was developed for the ecosystem and landscape, which contains three levels. It uses the weighted average fuzzy synthetic evaluation method to assess the health status of urban water systems in order to diagnose the restriction factors of ecosystem health. As a case study in Beijing, the results indicated that the Nanchang River was in a healthy state, the degree of membership belonging to the healthy state was 0.417. In contrast, the Yongding River, the Beihucheng River and the Liangma River were in an unhealthy state; their degrees of membership were 0.585, 0.854 and 0.901 respectively. Much attention should be paid to the urban water systems in the Haihe River Basin, especially for the evaluated systems with an unhealthy state index of over 0.8. These urban water system are very important for the overall integrity of the basin ecosystem.
DE: 0493 Urban systems
DE: 1834 Human impacts
DE: 1849 Numerical approximations and analysis
SC: Hydrology [H]
MN: 2007 Joint Assembly