Journal
QUATERNARY SCIENCE REVIEWS
Volume 98, Issue -, Pages 24-32Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.quascirev.2014.05.019
Keywords
Paleolimnology; Human environment interactions; Eutrophication; Environmental change
Funding
- National Natural Science Foundation of China (NSFC) [40571173, 40871008, 41171171]
- US NSF [EAR/IF 0948366, AGS-1137750]
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Pollution and eutrophication of Chinese lakes are widely perceived to be 20th century phenomena. However, China has a long history of deforestation, agriculture, mineral resource extraction, and other anthropogenic activities that impact the environment. Here, we present a sediment record from Xing Yun Lake in the Yunnan Province of China that reveals significant alterations to the lake, its ecosystem, and its watershed beginning as early as 500 AD. A comprehensive suite of biogeochemical and isotopic proxies reveal several rapid transitions related to changes in agriculture and lake-level management that coincides with cultural and dynastic transitions. The deterioration of contemporary environmental conditions at Xing Yun arises from a long history of anthropogenic manipulation, eutrophication, and pollution of the lake and its watershed. This study highlights the importance of using historical records of industrial and agricultural activities, including landscape modification, in conjunction with records of climate change, to place present day environmental concerns into a long-term context. (C) 2014 Elsevier Ltd. All rights reserved.
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