Title: Spatial distribution of phosphorus in sediments at the Caohai lakeshore area

Authors: Shaoyong Lu; Xiang-can Jin; Zhen Liu; Zhi-qiang Liu; Qun Miao; Ye Zhang; Min-min Cai

Addresses: Engineering and Technology Centre of Lake, State Environmental Protection Scientific Observation and Research Station for Lake Dongtinghu (SEPSORSLD), Research Centre of Lake Environment, State Environmental Protection Key Laboratory for Lake Pollution Control, State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China ' Engineering and Technology Centre of Lake, State Environmental Protection Scientific Observation and Research Station for Lake Dongtinghu (SEPSORSLD), Research Centre of Lake Environment, State Environmental Protection Key Laboratory for Lake Pollution Control, State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China ' Engineering and Technology Centre of Lake, State Environmental Protection Scientific Observation and Research Station for Lake Dongtinghu (SEPSORSLD), Research Centre of Lake Environment, State Environmental Protection Key Laboratory for Lake Pollution Control, State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China ' School of Environment and Municipal Engineering, Qingdao Technological University, Qingdao 26603, China ' School of Environment and Municipal Engineering, Qingdao Technological University, Qingdao 26603, China ' Engineering and Technology Centre of Lake, State Environmental Protection Scientific Observation and Research Station for Lake Dongtinghu (SEPSORSLD), Research Centre of Lake Environment, State Environmental Protection Key Laboratory for Lake Pollution Control, State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China ' Engineering and Technology Centre of Lake, State Environmental Protection Scientific Observation and Research Station for Lake Dongtinghu (SEPSORSLD), Research Centre of Lake Environment, State Environmental Protection Key Laboratory for Lake Pollution Control, State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China

Abstract: This study investigated the distribution and changes in phosphorus (P) forms within surface and column sediments collected from the lakeshore area of Caohai, Dianchi Lake. Results showed that the sediments of the Caohai lakeshore area were high in total phosphorus (TP), with a maximum value of 2,452 mg•kg−1. The variation in P content within sediments from various regions was large. Inorganic phosphorus (IP) was the major part of TP. The Fe, Al, and Mn oxide and hydroxide (Fe/Al-P) content was higher than the calcium bound P content. This will facilitate the release of P into the water.

Keywords: lakeshore; phosphorus; spatial distribution; sediments; China; freshwater lakes; water pollution; water quality.

DOI: 10.1504/IJEP.2015.077175

International Journal of Environment and Pollution, 2015 Vol.58 No.3, pp.160 - 171

Accepted: 17 Jul 2015
Published online: 17 Jun 2016 *

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