title: Designing principles of an ecological water storage basin on coastal saline: a case study.
abstract: The degradation of water source environment becomes serious problems accompanying with rapid urbanization in China. Ecological engineering provides ecologically sound and cost-effective solution to solving this problem. As a case study, a 15 hm2 ecological water storage basin for a water plant was designed and constructed on the TEDA area in Tianjin City. Located on saline, the construction of this project has to face serious difficulties, such as high salinity, scarce seed banks of macrophytes, and strong winds. Freshwater replacement, soil amendation and macrophytes planting at the basinshore, wooden water breaker and plastic membrane installation and other measures were conducted for the assistance of plant community establishment. The result showed that the chloride concentration in the basin water decreased from 11600 mg/L to less than 100 mg/L, and the chloride content in the basin sediment decreased from 2.1 % to 0.35% after freshwater soaking. The introduced macrophytes of 8 species all survived and 11 other macrophytes species were occurred in the basin. A new ecosystem was created with increased biological diversity in the original saline, and the water quality was improved. This ecological water storage basin also provided a pleasing landscape for local people.
authors.affiliation: SKLEAC, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
authors.forename: Ping-ping
authors.initials: PP
authors.lastname: Liu
authors.forename: Cheng-qing
authors.initials: CQ
authors.lastname: Yin
authors.forename: Jiu-hui
authors.initials: JH
authors.lastname: Qu
authors.forename: Guang-yun
authors.initials: GY
authors.lastname: Zhang
authors.forename: Wen-qing
authors.initials: WQ
authors.lastname: Feng
authors.forename: Jun-xin
authors.initials: JX
authors.lastname: Liu
authors.forename: Zhi
authors.initials: Z
authors.lastname: Zhong
mesh_terms: D002681:China; D002712:Chlorides / Q000032:analysis; D017753:Ecosystem; D004779:Environment Design; D005618:Fresh Water / Q000737:chemistry*; D010944:Plants / Q000378:metabolism*; D018508:Water Purification / Q000379:methods*; D014881:Water Supply
chemical_list: D002712:Chlorides