所属单位：

环境与市政工程学院

发表刊物：

Ecological Indicators

关键字：

中文关键字：高盐；景观水；营养水平；富营养化控制，英文关键字：High salinity；Landscape water；Trophic level；Eutrop

摘要：

tEutrophication of landscape waters is drawing public concerns in China but few studies have been con-ducted on the problem associated with high water salinity as what happens at Sino-Singapore TianjinEco-city in Tianjin, a coastal metropolis of northern China. In order to find ways for eutrophication con-trol, a comparative study was conducted on three landscape water bodies, namely Qingjing Lake, JiyunRiver and Jiyun River Oxbow, which are under varied conditions of salinity, organic, and nutrients intru-sion. The spatial and temporal variations of water quality were revealed by water sampling and analyses,and correlative relationships were obtained between water salinity and other parameters related toeutrophication. By utilizing a trophic level index (TLI), the eutrophication status of the three landscapewater bodies in different seasons could further be evaluated. As a result, water temperature, as expected,showed the strongest effect on eutrophication because higher TLI together with higher Chl-a concentra-tions tended to occur in later spring and summer seasons, while nutrient concentration, especially TP,was also the determinative factor to the eutrophication status. Of the three water bodies, the Jiyun RiverOxbow showed a salinity as high as 20 g/L or more in contrast with the other two water bodies withsalinity as 4–5 g/L. Although its TP concentration was usually very low (about 0.1 mg/L), it was under amoderate eutrophication status almost in all seasons, indicating that high salinity tends to induce algagrowth. Dilution of saline inflow and nutrients reduction could thus be proposed as the main measuresfor eutrophication control of landscape waters in the study area.

备注：

熊家晴

合写作者：

XiaochangC.Wang,QingqingZhang,RanDuan,NanW

第一作者：

熊家晴

论文类型：

期刊论文

卷号：

卷：ECOIND-2641

期号：

期：

页面范围：

页：

是否译文：

否

发表时间：

2015-11-01