QQ客服 官方微博 反馈留言

	Estimation of ammonia nitrogen load from nonpoint sources in the Xitiao River catchment, China
	Liang T.
	2008
关键词	nonpoint source pollution NH(4)(+)-N Geographic Information systems (GIS) output rate load land-use change simulation-model surface waters gis management quality
英文摘要	Ammonia nitrogen (NH(4)(+)-N) is one of the three main forms of total nitrogen (TN). Most studies have estimated the load of TN from nonpoint sources instead of one specific form. The relationship between land use and concentrations of NH(4)(+)-N in runoff was analyzed using the hydraulic analysis functions of a Geographic Information Systems (GIS), and the annual loads of NH(4)(+)-N in the Xitiao River catchment were estimated according to model results. The results suggested that the calculated annual loads of NH(4)(+)-N agreed well with the observed ones, which was a good example demonstrating that it was possible to estimate the pollutant loads from nonpoint sources without enough monitoring data. Results also showed that the concentrations of NH(4)(+)-N in river waters of forest and arable land in the study area were 0.16 and 0.39 mg/L, respectively. The total nonpoint source load of NH(4)(+)-N from 1995 to 2001 (except 1998 and 2000) varied between 2,098 and 7,992 tons/year in the Xitiao, River catchment.
出处	Journal of Environmental Sciences-China
卷	20
期	10
页	1195-1201
收录类别	SCI
语种	英语
ISSN号	1001-0742
内容类型	SCI/SSCI论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/23541]
专题	地理科学与资源研究所_历年回溯文献
推荐引用方式 GB/T 7714	Liang T.. Estimation of ammonia nitrogen load from nonpoint sources in the Xitiao River catchment, China. 2008.

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。