呼伦湖流域磷形态分布及颗粒态磷的溯源

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Abstract In this paper, we selected 23 sites in the Hulun Lake area to analyze the concentration of different phosphorus forms in the sediments of Hulun Lake and its inlet and outlet rivers. The composite fingerprint identification technology was then used to explore the sources of particulate phosphorus (PP) and the relative contributions of different sources. Results showed that the total phosphorus (TP) concentration in Hulun Lake Basin ranged from 0.04 to 0.33mg/L, with an average of 0.14mg/L. The proportions of PP to TP was 45.79% ~ 92.78%. The main source of PP in Hulun Lake sediments was degraded grassland (34.1%~100.0%), followed by grassland (0%~50.7%) and farmland (0%~15.2%). Degraded grassland was also the main source of PP in the sediments of Urson River (49.4%~57.1%), Xinkai River (artificial river, 100%) and Yinhejihu River (artificial river, 83.6%). Grassland contributed an additional 42.9%~50.6% of PP in the Urson River sediments. This study provides a theoretical basis for the control of phosphorus pollution in the Hulun Lake Basin and the improvement of the lake water environment.

Key words： Hulun Lake phosphorus traceability composite fingerprinting method

Received: 08 February 2023

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X524

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	Articles by authors
	LU Xiao-feng
	GUO Yi-nan
	WANG Guo-xi
	JIANG Xia
	WANG Kun

Cite this article:

LU Xiao-feng,GUO Yi-nan,WANG Guo-xi等. Distribution characteristics of various forms of phosphorus and the traceability of phosphorus in particulate form in Hulun Lake basin[J]. CHINA ENVIRONMENTAL SCIENCECE, 2023, 43(9): 4810-4818.

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http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2023/V43/I9/4810

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