Phosphorus mitigation remains critical in water protection: A review and meta-analysis from one of China's most eutrophicated lakes

doi:10.1016/j.scitotenv.2019.06.302

	Phosphorus mitigation remains critical in water protection: A review and meta-analysis from one of China's most eutrophicated lakes
	Yan, Kai 1,2; Yuan, Zengwei 3; Goldberg, Stefanie 2,4; Gao, Wei 5; Ostermann, Anne 2,4; Xu, Jianchu2,4 ; Zhang, Fusuo 6; Elser, James 7
通讯作者	Xu, Jianchu(jxu@mail.idb.ac.cn)
	2019-11-01
发表期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
卷号	689 页码:1336-1347
摘要	The processes of urbanization and industrialization within geological phosphorus-rich mountains (GPMn) have resulted in water degradation within southwest China. Lake Dianchi, one of the most eutrophicated lakes in China, has epitomized this issue. Clear understandings of phosphorus (P) mitigation efforts, the evolution of P budgets, and possible risks in the Dianchi system will benefit future eutrophication control, providing valuable lessons for other plateau freshwater lakes. In this study, we applied systematic review methodology to investigate the above questions, and then compared the results with other lakes worldwide. Generally, meta-analytical approaches have indicated P levels remain a key factor in causing algal blooms. Post-2015, the P budget of the Dianchi system, especially in Caohai section, was modified. However, it's still experiencing high pressures from P enrichment (Caohai: 0.4 mg.l(-1); Waihai: 0.2 mg.l(-1)). The flux of P in Dianchi remains high, both through the external P load (556 ton.a (1)), and an internal cycle (304 ton.a (1) associated with the absorption, deposition and removal of algae biomass; and 380 ton.a(-1) associated with sediment exchange). Meanwhile, significant P retention has been observed in the lake, in particular within the Waihai section (211 ton.a(-1)). Currently, water diversion (from external watersheds), sewage diversion, and sediment-dredging projects have benefited Dianchi. However, continuous urbanization and GPMn ecological degradation could introduce hundreds of tons of additional P, leading to subsequent algal blooms. Furthermore, beyond Lake Dianchi, other lakes and reservoirs in southwest China are facing similar issues regarding P mitigation, especially in GPMn regions, though corresponding knowledge is still limited. Therefore, effective and flexible sub-regional protection strategies and research related to external and internal P mitigations have become key requirements for Lake Dianchi management. Meanwhile, ecologically sensitive approaches to GPMn regions, as well as city development within basin and market driven treatments, should be incorporated into regional water source protection for southwest China. (C) 2019 Published by Elsevier B.V.
关键词	Lake Dianchi Phosphorus budget Markov chain Monte Carlo simulation Bayesian hierarchical model Watershed management Geological phosphorus-rich mountains
DOI	10.1016/j.scitotenv.2019.06.302
收录类别	SCI
语种	英语
WOS记录号	WOS:000482379400128
引用统计
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/68769
专题	中国科学院东亚植物多样性与生物地理学重点实验室
通讯作者	Xu, Jianchu
作者单位	1.Yunnan Agr Univ, Coll Resources & Environm, Kunming 650201, Yunnan, Peoples R China 2.Chinese Acad Sci, Kunming Inst Bot, Key Lab Plant Divers & Biogeog East Asia, Kunming 650201, Yunnan, Peoples R China 3.Nanjing Univ, Sch Environm, State Key Lab Pollut Control & Resources Reuse, Nanjing 210023, Jiangsu, Peoples R China 4.ICRAF East & Cent Asia, World Agroforestry Ctr, Kunming 650201, Yunnan, Peoples R China 5.Yunnan Univ, Sch Ecol & Environm Sci, Kunming 650091, Yunnan, Peoples R China 6.China Agr Univ, Ctr Resources Environm & Food Secur, Key Lab Plant Soil Interact, Minist Educ, Beijing 100193, Peoples R China 7.Arizona State Univ, Sch Life Sci, Tempe, AZ USA
推荐引用方式 GB/T 7714	Yan, Kai,Yuan, Zengwei,Goldberg, Stefanie,et al. Phosphorus mitigation remains critical in water protection: A review and meta-analysis from one of China's most eutrophicated lakes[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2019,689:1336-1347.
APA	Yan, Kai.,Yuan, Zengwei.,Goldberg, Stefanie.,Gao, Wei.,Ostermann, Anne.,...&Elser, James.(2019).Phosphorus mitigation remains critical in water protection: A review and meta-analysis from one of China's most eutrophicated lakes.SCIENCE OF THE TOTAL ENVIRONMENT,689,1336-1347.
MLA	Yan, Kai,et al."Phosphorus mitigation remains critical in water protection: A review and meta-analysis from one of China's most eutrophicated lakes".SCIENCE OF THE TOTAL ENVIRONMENT 689(2019):1336-1347.