DOI: 10.1002/2015GL064965
论文题名: An index to characterize the spatial distribution of land use within watersheds and implications for river network nutrient removal and export
作者: Mineau M.M. ; Wollheim W.M. ; Stewart R.J.
刊名: Geophysical Research Letters
ISSN: 0094-9367
EISSN: 1944-9098
出版年: 2015
卷: 42, 期: 16 起始页码: 6688
结束页码: 6695
语种: 英语
英文关键词: coastal watershed
; land use
; model
; nitrogen
; river
; spatial distribution
Scopus关键词: Location
; Models
; Nitrogen
; Nitrogen removal
; Nutrients
; Rivers
; Spatial distribution
; Watersheds
; Coastal watersheds
; In-stream removal
; Nutrient inputs
; Nutrient removal
; Nutrient sources
; River network
; Source location
; Stream nutrient
; Land use
; headwater
; land use change
; nitrogen
; nutrient uptake
; pollutant removal
; quantitative analysis
; river system
; runoff
; spatial distribution
; watershed
英文摘要: The spatial distribution of land use and associated nutrient inputs may influence the efficacy of in-stream nutrient removal; however, the effect of source location on N removal and watershed N export has not been quantified. We present the skewness index, a metric to quantify the spatial distribution of land use within watersheds. Using this index and a river network nitrogen removal model, we quantified the effect of varying the location of developed land use within two watersheds on nutrient removal and export. The quantity and location of developed land use as well as runoff affected nitrogen removal and export. Because river network nitrogen removal is bypassed when sources are skewed toward the watershed mouth, varying the location of land use alone can double aquatic nitrogen removal. Nutrient sources skewed toward the distant headwaters maximized in-stream removal which in turn can reduce watershed export. © 2015. The Authors. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84941687155&doi=10.1002%2f2015GL064965&partnerID=40&md5=01ab1384789823117e0c40a9a38625d8
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8982
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: Earth Systems Research Center, University of New Hampshire, Durham, NH, United States
Recommended Citation:
Mineau M.M.,Wollheim W.M.,Stewart R.J.. An index to characterize the spatial distribution of land use within watersheds and implications for river network nutrient removal and export[J]. Geophysical Research Letters,2015-01-01,42(16).