An estimation on budget and control of phosphorus in the Changjiang River catchment

doi:10.1007/s10661-011-2435-6

	An estimation on budget and control of phosphorus in the Changjiang River catchment
	Shen, Zhi-Liang 1; Li, Zheng 2; Miao, Hui 1; Shen, ZL (reprint author), Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China.
	2012-11-01
发表期刊	ENVIRONMENTAL MONITORING AND ASSESSMENT
ISSN	0167-6369
卷号	184 期号:11 页码:6491-6505
文章类型	Article
摘要	Based on field investigations in the Changjiang River mouth, rain sampling from the river's upper reaches to the mouth, historical data, and relevant literatures, the budget and major control factors of total phosphorus (TP) and dissolved inorganic phosphorus (DIP) in the river catchment were estimated and discussed from the catchment scale. It will supply a base for effective controlling P concentration in the Changjiang River and its mouth. Results show that the export fluxes of TP and DIP were mainly controlled by the river runoff. The TP and DIP in the Changjiang River came mainly from agricultural nonpoint source P losses from fertilizer and soil and point sources of industrial waste and residential sewage discharges. The export fluxes of TP and DIP in the river mouth were only 27.0% and 28.3% of the imports from the river catchment, respectively, suggesting that most of P were removed in transportation. A mass of freshwater marshes in the river catchment were the main areas to remove P. Significant increasing in utilization of fertilizer P and incessant increasing in water and soil loss areas were the primary reasons of agricultural nonpoint source P losses. How to decrease the agricultural nonpoint source P loss from the catchment scale is a key controlling P concentration in the Changjiang River and its mouth. The point source industrial waste P discharge has been primarily treated in the river catchment, but the residential sewage P discharge needs further control.
关键词	Phosphorus Budget Control Agricultural Nonpoint Source Point Source Changjiang River Catchment
学科领域	Environmental Sciences
DOI	10.1007/s10661-011-2435-6
URL	查看原文
收录类别	SCI
语种	英语
WOS记录号	WOS:000309476100003
引用统计	被引频次：5[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/12411
专题	海洋生态与环境科学重点实验室
通讯作者	Shen, ZL (reprint author), Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China.
作者单位	1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China 2.Shanghai Fishery Univ, Life Sci & Tech Coll, Shanghai 200090, Peoples R China
第一作者单位	中国科学院海洋研究所
推荐引用方式 GB/T 7714	Shen, Zhi-Liang,Li, Zheng,Miao, Hui,et al. An estimation on budget and control of phosphorus in the Changjiang River catchment[J]. ENVIRONMENTAL MONITORING AND ASSESSMENT,2012,184(11):6491-6505.
APA	Shen, Zhi-Liang,Li, Zheng,Miao, Hui,&Shen, ZL .(2012).An estimation on budget and control of phosphorus in the Changjiang River catchment.ENVIRONMENTAL MONITORING AND ASSESSMENT,184(11),6491-6505.
MLA	Shen, Zhi-Liang,et al."An estimation on budget and control of phosphorus in the Changjiang River catchment".ENVIRONMENTAL MONITORING AND ASSESSMENT 184.11(2012):6491-6505.

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