Landscape patterns regulate non-point source nutrient pollution in an agricultural watershed
作者: Jianhong WuJun Lu
作者单位: 1College of Environment and Natural Resources, Zhejiang University, Hangzhou 310058, China
2China Ministry of Education Key Lab of Environment Remediation and Ecological Health, Zhejiang University, Hangzhou 310058, China
刊名: Science of the Total Environment, 2019, Vol.669 , pp.377-388
来源数据库: Elsevier Journal
DOI: 10.1016/j.scitotenv.2019.03.014
关键词: Landscape patternNon-point source pollutionWater qualityRedundancy analysisAbrupt change analysisWatershed
英文摘要: Abstract(#br)Landscape pattern critically affects hydrological cycling and the processes of non-point source nutrients pollution. However, little is known about the quantitative relationship between landscape characteristics and the river water quality, and very few studies have addressed the abrupt changes in river water quality with the gradient of landscape metrics. The present study was conducted in a typically intensive agriculture watershed of eastern China including 13 sub-watersheds with different landscape pattern metrics. We adopted redundancy analysis, nonparametric deviance reduction approach, bootstrap sampling and other statistical methods to reveal the quantitative relationship between landscape pattern metrics and water quality variables; then, the phenomenon of an abrupt...
全文获取路径: Elsevier  (合作)
影响因子:3.258 (2012)

  • point 
  • watershed 分水岭
  • pattern 模型
  • pollution 污染
  • change 变化
  • analysis 分析
  • source 
  • quality 品质
  • nutrient 养分
  • agricultural 农业的