IMHE OpenIR  > 山地表生过程与生态调控重点实验室
assessmentofheavymetalenrichmentanditshumanimpactinlacustrinesedimentsfromfourlakesinthemidlowreachesoftheyangtzeriverchina
Bing Haijian1; Wu Yanhong1; Liu Enfeng2; Yang Xiangdong2
2013
Source Publicationjournalofenvironmentalsciences
ISSN1001-0742
Volume25Issue:7Pages:1300
AbstractSediments from four lakes in the mid-low reaches of the Yangtze River, Taibai Lake, Longgan Lake, Chaohu Lake and Xijiu Lake, were chosen to evaluate their enrichment state and history. The state of heavy metal enrichment was at a low level in the sediment of Taibai Lake and Longgan Lake. The enrichment state of Co, Cr and Ni was also low in the sediment of Chaohu Lake and Xijiu Lake, while Cu, Pb and Zn enrichment reached a higher level. Mass accumulation fluxes were calculated to quantitatively evaluate the anthropogenic contribution to heavy metals in the sediment. The anthropogenic accumulation fluxes were lower in the sediment of Taibai Lake and Longgan Lake compared with the other two lakes, where heavy metals, especially Cu, Pb and Zn, were mainly from anthropogenic sources. Heavy metal accumulation did not vary greatly in the sediment of Taibai Lake and Longgan Lake, while that in Chaohu Lake and Xijiu Lake increased since the 1950s and substantially increased since the 1980s, although a decrease occurred since 2000 AD in Xijiu Lake. Heavy metal enrichment was strongly related to human activities in the catchment. The development of urbanization and industrialization was much more rapid in the catchments of Chaohu Lake and Xijiu Lake than of the other two lakes, and thus large amounts of anthropogenically sourced heavy metals were discharged into the lakes, which resulted in a higher contamination risk. However, human activities in the Longgan Lake and Taibai Lake catchments mainly involved agriculture, which contributed a relatively small portion of heavy metals to the lakes.
Language英语
Funding Project[National Natural Science Foundation of China] ; [Chinese Academy of Sciences]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/31763
Collection山地表生过程与生态调控重点实验室
Affiliation1.中国科学院成都山地灾害与环境研究所
2.中国科学院南京地理与湖泊研究所
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
Bing Haijian,Wu Yanhong,Liu Enfeng,et al. assessmentofheavymetalenrichmentanditshumanimpactinlacustrinesedimentsfromfourlakesinthemidlowreachesoftheyangtzeriverchina[J]. journalofenvironmentalsciences,2013,25(7):1300.
APA Bing Haijian,Wu Yanhong,Liu Enfeng,&Yang Xiangdong.(2013).assessmentofheavymetalenrichmentanditshumanimpactinlacustrinesedimentsfromfourlakesinthemidlowreachesoftheyangtzeriverchina.journalofenvironmentalsciences,25(7),1300.
MLA Bing Haijian,et al."assessmentofheavymetalenrichmentanditshumanimpactinlacustrinesedimentsfromfourlakesinthemidlowreachesoftheyangtzeriverchina".journalofenvironmentalsciences 25.7(2013):1300.
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