A 60-year sedimentary record of natural and anthropogenic impacts on Lake Chenghai, China

Fengyu Zan, Shouliang Huo, Beidou Xi, Jingtian Zhang, Haiqing Liao, Yue Wang, Kevin M. Yeager

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32 Scopus citations


Recent sediments from Lake Chenghai, China, were investigated at high temporal resolution to trace both natural and anthropogenic effects on the lake using total organic carbon (TOC), total nitrogen (TN), total phosphorus (TP), organic phosphorus (P o), inorganic phosphorus (P i) and organic carbon and nitrogen stable isotopes (δ 13C org and δ 15N) in a 137Cs-dated sediment core. The results indicated that the sedimentary record covers the last 60 years, during which the lake had undergone apparent changes in nutrient sources and productivity in response to nutrient loading. Prior to the late 1980s, the nutrient contents in sediments mainly originated from algae and lake productivity was relatively stable. Since the late 1980s, increasing TOC, TN and TP concentrations together with the change of δ 13C org and δ 15N suggested anthropogenic perturbations in nutrient loading and lake productivity. Endogenic nutrients derived from algae and anthropogenic inputs were two important sources of sedimentary nutrients. The anthropogenic nutrients mainly originated from the discharge of industrial wastewater and artificial cultivation of Spirulina after the middle 1980s, and domestic wastewater discharged from Yongsheng County since 1993.

Original languageEnglish
Pages (from-to)602-609
Number of pages8
JournalJournal of Environmental Sciences
Issue number4
StatePublished - Apr 2012

Bibliographical note

Funding Information:
This work was supported by the Mega-projects of Science Research for Water Environment Improvement (No. 2009ZX07106-001), the National Natural Science Foundation of China (No. 40901248) and the National Basic Research Program (973) of China (No. 2008CB418206). We are grateful for the anonymous reviewer for their constructive comments and suggestions on the manuscript.


  • Anthropogenic impacts
  • C/N ratio
  • Lake productivity
  • Organic matter
  • Stable isotope

ASJC Scopus subject areas

  • Environmental Engineering
  • Environmental Chemistry
  • Environmental Science (all)


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