期刊论文

中文

环境科学

0250-3301

2014

35

5

1750-1758

10.13227/j.hjkx.2014.05.016

国家重点基础研究发展规划（973）项目（2012CB417004）； 国家自然科学基金项目（40873079）； 国家社会基础性工作项目（2006FY110600）；

本校为第一机构

选取不同水情下鄱阳湖表层沉积物,研究江湖关系变化对其重金属 Cu、 Pb、 Zn、 Cr和 Cd的分布及生态风险影响,结果表明:① 鄱阳湖沉积物受不同程度重金属污染,入湖河流颗粒物输入是鄱阳湖沉积物重金属的主要来源,其中 Cu和 Pb是主要污染因子. 各重金属污染程度排列次序为: Cu>Pb>Zn>Cr>Cd,丰水期沉积物各重金属含量的变化范围为 Cu 13.1~108.1 mg·kg~(-1)、 Pb 37~119.1 mg·kg~(-1)、 Zn 29.9~129.9 mg·kg~(-1)、 Cr 13.3~98.6 mg·kg~(-1)和Cd 0.19~2.77 mg·kg~(-1); 枯水期为Cu 3.05~69.7 mg·kg~(-1)、 Pb 27.5~105 mg·kg~(-1)、 Zn 18.8~95.4 mg·kg~(-1)、 Cr 7.34~70 mg·kg~(-1)与C...

Effects of river (Yangtze River)-lake (Poyang Lake) relation on the distribution and potential ecological risk of Cu, Pb, Zn, Cr and Cd were investigated in surface sediment of Poyang Lake under different waterregimens. The results indicated: (1) the sediments of Poyang Lake were polluted by various concentrations of heavy metals mainly originated from particulates of Yangtze River, and Cu and Pb were the main pollution factors. The pollution level of determined heavy metals followed the order of Cu > Pb > Zn > Cr >Cd. The concentration ranges of Cu, Pb, Zn, Cr and Cd in the sediment of Poyang...