Vertical distributions of bound saturated fatty acids and compound-specific stable carbon isotope compositions in sediments of two lakes in China: implication for the influence of eutrophication
作者: Lifang WangYongqiang XiongFengchang WuQiuhua LiTian LinJohn P. Giesy
作者单位: 1State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences
2State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences
3State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences
4Key Laboratory for Information System of Mountainous Area and Protection of Ecological Environment of Guizhou Province, Guizhou Normal University
5Department of Biomedical Veterinary Biosciences and Toxicology Centre, University of Saskatchewan
刊名: Environmental Science and Pollution Research, 2014, Vol.21 (22), pp.13138-13147
来源数据库: Springer Journal
DOI: 10.1007/s11356-014-3219-7
关键词: Bound saturated fatty acidsCompound-specific δ 13 CCore sedimentsEutrophicationLake DianchiLake BostenAsia
英文摘要: Abstract(#br)Lakes Dianchi (DC) and Bosten (BST) were determined to be at different stages of eutrophication, by use of total organic carbon content, bulk carbon isotopic composition, bulk nitrogen isotopic composition, and bound saturated fatty acid (BSFA) concentrations in sediment cores. A rapid increase in the supply of organic matter (OM) to DC began after the 1950s, while the environment and trophic status of BST remained constant as indicated by characteristics of OM input to sediments. The BSFA ratios of nC14 + nC16 + nC18/nC24 + nC26 + nC28 increase upward from 7 to 13 in the DC core, which are significantly greater than those from BST (2 to 3). This result is consistent with algae or bacteria being the dominant contribution of the OM increase induced by eutrophication in DC. The...
全文获取路径: Springer  (合作)
影响因子:2.618 (2012)

  • eutrophication 富养化
  • bound 
  • saturated 饱和
  • implication 蕴涵
  • fatty 脂肪的
  • carbon 
  • stable 稳定的
  • specific 
  • influence 影响
  • China 中国