标题：Simulation of the spatial and temporal changes of complex non-point source loads in a lake watershed of central China作者：Zhuang Yanhua; Hong Song; Zhang Wenting; Lin Hongyan; Zeng Qinghui;Thuminh, Nguyen; Niu Beibei; Li Wanyi

来源出版物：WATER SCIENCE AND TECHNOLOGY 卷：67 期：9 页：2050-2058 DOI：10.2166/wst.2013.083出版年：2013

摘要：In this study, a coupling model of agricultural and urban non-point source (AUNPS) is established in order to estimate complex non-point source (NPS) pollutant loads in the urban-rural fringe. Furthermore, a spatial-temporal change model of non-point source (CA-AUNPS) is established by the coupling of AUNPS and cellular automata (CA) models. The total nitrogen (TN) and total phosphorus (TP) loads in Tangxun watershed were simulated during 1991-2020, and the results show that: (1) the CA-AUNPS model is an effective tool to simulate the spatial-temporal changes of NPS pollutant loads in urban-rural fringe; (2) in terms of the spatial changes, the TN and TP loads generally showed as rural/urban construction land > farmland > forest/green land, and the high-value areas of NPS pollutant loads expanded from north to south with the increase of construction land; with regard to temporal changes, the TN and TP loads generally displayed an increasing tendency during 1991-2020, and by 2020 the TN and TP loads will increase to 370.06 and 33.89 t yr(-1), respectively; (3) the spatial-temporal changes of TN and TP loads in Tangxun watershed correlate strongly with the land-use, slope, and rainfall.

入藏号：WOS:000319256300021

文献类型：Article

语种：English

作者关键词：cellular automata (CA), complex non-point source, nitrogen, phosphorus, urbanization

扩展关键词：LAND-USE CHANGE; SOURCE POLLUTION; IMPACTS; GIS; MODEL; INTEGRATION; SCALE; AREA; SWAT

通讯作者地址：Hong Song;Wuhan Univ, Sch Resource & Environm Sci, Wuhan 430079, Peoples R China.

电子邮件地址：songhongpku@126.com

地址：

[Zhuang Yanhua; Hong Song; Zhang Wenting; Lin Hongyan; Zeng Qinghui; Thuminh, Nguyen; Niu Beibei; Li Wanyi] WuhanUniv, Sch Resource & Environm Sci,Wuhan430079, Peoples RChina.

[Zhang Wenting] Chinese Univ Hong Kong, Dept Geog & Resource Management, Hong Kong 852000, Hong Kong, Peoples R China.

研究方向：Engineering; Environmental Sciences & Ecology; Water Resources

ISSN：0273-1223

注：WATER SCIENCE AND TECHNOLOGY由国际水协会出版，在水处理领域较受认可，2012年影响因子1.102。IWA期刊主页提供回溯至1982年的全文阅读：http://www.iwaponline.com/wst/default.htm