Retention of nitrogen and phosphorus in Lake Chaohu, China: implications for eutrophication management

	Retention of nitrogen and phosphorus in Lake Chaohu, China: implications for eutrophication management
	Wang, Yanping; Kong, Xiangzhen; Peng, Zhaoliang; Zhang, Hui; Liu, Gang; Hu, Weiping; Zhou, Xiangqian
刊名	ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
	2020
卷号	27 期号:33 页码:41488-41502
英文摘要	Nutrient retention is an important process in lake nutrient cycling of lakes and can mitigate lake eutrophication. However, little is known about temporal lake nutrient retention efficiency and it varies due to changes in hydrological, ecological, and nutrient inputs to lake waters. Quantitative information about seasonal lake N and P retention is critical for developing strategies to reduce eutrophication in lake systems. This study investigated TN and TP retention efficiencies and retention masses using water and mass balance calculations, and statistically analyzed the seasonal variability of nutrient retention in Lake Chaohu, China, from 2014 to 2018. Lake Chaohu experienced large amounts of external loads inputs (23.2 g N m(-2) year(-1)and 1.3 g P m(-2) year(-1)), and approximately 58% TN and 48% TP were retained annually. The lake acted more as a sink for N than for P. The mean annual TP retention efficiency decreased (P < 0.05) over the study period, indicating that TP retention capacity was gradually exceeded. Seasonal variability of TN and TP retention efficiency was high and ranged from - 18.7 to 144.1% and from - 58.8 to 170.7%, respectively, over the five study years. The internal P loads over the study period were equivalent to roughly 9% of the total external loads. The annual nutrient retention efficiency of TN and TP increased with hydraulic residence time, while water temperature was an essential factor for the contrasting seasonal variation patterns of TN and TP retention efficiencies.
内容类型	期刊论文
源URL	[http://159.226.73.51/handle/332005/20270]
专题	中国科学院南京地理与湖泊研究所
推荐引用方式 GB/T 7714	Wang, Yanping,Kong, Xiangzhen,Peng, Zhaoliang,et al. Retention of nitrogen and phosphorus in Lake Chaohu, China: implications for eutrophication management[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2020,27(33):41488-41502.
APA	Wang, Yanping.,Kong, Xiangzhen.,Peng, Zhaoliang.,Zhang, Hui.,Liu, Gang.,...&Zhou, Xiangqian.(2020).Retention of nitrogen and phosphorus in Lake Chaohu, China: implications for eutrophication management.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,27(33),41488-41502.
MLA	Wang, Yanping,et al."Retention of nitrogen and phosphorus in Lake Chaohu, China: implications for eutrophication management".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 27.33(2020):41488-41502.