第 35 卷 第 4 期 环 境 科 学 研 究 ， 2ons. Chlorophyll concentration and density of phytoplankton increased by 4 and 3 times respectively. However, the transparency decreased by % in the current state of algal turbidity. (2) The diversity index (Shannon-Wiener Index) of zoobenthos and species of fish increased from to and 0 to 14, and the coverage of macro aquatic plants increased from 6% to 40%. The study reveals that owing to natural recovery and artificial intervention, the health level of the Jing River changed from unhealthy to sub-healthy, but the eutrophication is the main limiting factor of the water system. The research results provide scientific basis for landscape design and ecological restoration of new rivers. Keywords：Beijing municipal administrative center； new water landscape； water ecological environment monitoring； water ecological health
收稿日期： 2021-10-12 修订日期： 2021-12-27 作者简介： 张蕾（1988-），女，山西大同人，工程师，硕士，主要从事水生态环境科学与应用研究，******@. 基金项目： 国家水体污染控制与治理科技重大专项（） Supported by National Major Science and Technology Program for Water Pollution Control and Treatment, China ()990 环 境 科 学 研 究 第 35 卷
