Designing principles of an ecological water storage basin on coastal saline: a case study.
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.
Liu
Ping-ping
PP
SKLEAC, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
Yin
Cheng-qing
CQ
Qu
Jiu-hui
JH
Zhang
Guang-yun
GY
Feng
Wen-qing
WQ
Liu
Jun-xin
JX
Zhong
Zhi
Z
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
D002712:Chlorides