Characteristics of diffuse pollution of nitrogen and phosphorous from a small town in the hilly area of the central Sichuan Basin, China

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > Journal of Mountain Science > Journal of Mountain Science-2016 > Vol13 No.2

	Characteristics of diffuse pollution of nitrogen and phosphorous from a small town in the hilly area of the central Sichuan Basin, China
	Yang Xiao-lin 1,2; Shen Xi 1; Zhu Bo1
刊名	JOURNAL OF MOUNTAIN SCIENCE
	2016-02-01
卷号	13 期号:2 页码:292-301
关键词	Nitrogen transport Phosphorus transport Event mean concentration Pollution loading Pollution sources Non-point-source pollution Yanting Agro-ecological Station
ISSN号	1672-6316
通讯作者	ZHU Bo
英文摘要	Hydrological and hydro-chemical monitoring of nitrogen (N) and phosphorus (P) in a small urbanized catchment was conducted in the hilly area of the central Sichuan Basin, China, from 2010 through 2011. The diffuse N and P loadings in different forms of total nitrogen (TN) and phosphorus (TP), dissolved nitrogen (DN) and phosphorus (DP), as well as particulate nitrogen (PN) and phosphorus (PP) were calculated based on runoff discharges and chemical analyses. The results revealed that the diffuse pollution concentrations of TN, DN, PN, TP, DP and PP exhibited large variations during rainfall events, with peak concentrations occurring during the initial period. For all of the measured parameters, the event mean concentrations (EMCs) were observed to clearly vary among rainfall events. The EMCs of TN, DN, PN, TP, DP and PP (for all of the observed rainfall events) were 10.04, 6.62, 3.42, 1.30, 0.47 and 0.83 mg/L, respectively. The losses of diffuse N and P exhibited clear seasonal patterns and mainly occurred during the period from July through September, when the losses totaled 99.3 and 9.6 kg/ha for TN and TP, respectively, accounting for 75% and 74% of the total annual loadings. The mean annual loadings of TN and TP were 124.6 and 12.9 kg/ha, respectively. The results indicate that residential areas in the hilly area of the central Sichuan Basin are subject to high diffuse N and P loadings, posing a serious risk to the receiving water quality. Ecological buffering belts are recommended to incorporate into the urbanized catchment to reduce diffuse pollution.
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
类目[WOS]	Environmental Sciences
研究领域[WOS]	Environmental Sciences & Ecology
关键词[WOS]	1ST FLUSH ; AGRICULTURAL CATCHMENT ; NUTRIENT EXPORTS ; URBAN RUNOFF ; MANAGEMENT ; WATER ; AUSTRALIA ; IMPLEMENTATION ; DISCHARGE ; SEDIMENT
收录类别	SCI
语种	英语
WOS记录号	WOS:000370161700010
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/14075]
专题	成都山地灾害与环境研究所_Journal of Mountain Science _Journal of Mountain Science-2016_Vol13 No.2 成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室
作者单位	1.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Surface Proc & Ecol Regulat, Chengdu 610041, Peoples R China 2.Henan Polytech Univ, Safety & Emergency Management Res Ctr, Jiaozuo 454003, Peoples R China
推荐引用方式 GB/T 7714	Yang Xiao-lin,Shen Xi,Zhu Bo. Characteristics of diffuse pollution of nitrogen and phosphorous from a small town in the hilly area of the central Sichuan Basin, China[J]. JOURNAL OF MOUNTAIN SCIENCE,2016,13(2):292-301.
APA	Yang Xiao-lin,Shen Xi,&Zhu Bo.(2016).Characteristics of diffuse pollution of nitrogen and phosphorous from a small town in the hilly area of the central Sichuan Basin, China.JOURNAL OF MOUNTAIN SCIENCE,13(2),292-301.
MLA	Yang Xiao-lin,et al."Characteristics of diffuse pollution of nitrogen and phosphorous from a small town in the hilly area of the central Sichuan Basin, China".JOURNAL OF MOUNTAIN SCIENCE 13.2(2016):292-301.