Journal of East China Normal University(Natural Science) ›› 2020, Vol. 2020 ›› Issue (1): 110-122.doi: 10.3969/j.issn.1000-5641.201831013

• Ecological and Environmental Sciences • Previous Articles     Next Articles

Health assessment of transboundary rivers based on the PSR and matter-element extension models: A case study of Taipu River

XIE Yihan1,2, LI Gen1,2, YANG Mengjie1,2, CHU Xiaoye1,2   

  1. 1. School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China;
    2. Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, East China Normal University, Shanghai 200241, China
  • Received:2018-12-29 Published:2020-01-13

Abstract: Taking Taipu River as an example, a multi-index assessment system for the water body and riparian zone is constructed based on the PSR model. Index weights are calculated with the entropy weight method, and the Taipu River is evaluated using the PSR and matter-element extension models. The results show that the Wujiang segment is classified as “high pressure-good state-low response ability”, the Jiashan segment is classified as “low pressure-medium state-low response ability”, and Qingpu segment is classified as “low pressure-medium state-high response ability”. The result of the health assessment of Wujiang is Grade Ⅲ (poor). Meanwhile, Jiashan and Qingpu are both Grade Ⅱ (medium), but leaning towards Grade I (good); this indicates that although the current health status of the river is medium, the health status of the water source area could be gradually restored by further increasing protection of the water source given that the policy is to some extent already effective. The results can provide decision support for river management and ecological construction of the riparian zone in Taipu River.

Key words: river health assessment, PSR model, matter-element extension model, transboundary river, classification assessment

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