DOI: 10.1002/2016GL070741
论文题名: Elucidating the role of vegetation in the initiation of rainfall-induced shallow landslides: Insights from an extreme rainfall event in the Colorado Front Range
作者: McGuire L.A. ; Rengers F.K. ; Kean J.W. ; Coe J.A. ; Mirus B.B. ; Baum R.L. ; Godt J.W.
刊名: Geophysical Research Letters
ISSN: 0094-8669
EISSN: 1944-8400
出版年: 2016
卷: 43, 期: 17 起始页码: 9084
结束页码: 9092
语种: 英语
英文关键词: debris flow
; Front Range
; landslide
; rainfall
; slope aspect
; vegetation
Scopus关键词: Debris
; Forestry
; Landslides
; Numerical models
; Rain
; Slope protection
; Storms
; Vegetation
; Colorado Front Range
; Debris flows
; Front Range
; Rainfall interception
; Shallow landslide
; Slope aspect
; Subsurface hydrology
; Vegetation community
; Slope stability
; aspect
; debris flow
; extreme event
; hillslope
; induced response
; landslide
; numerical model
; pore pressure
; porewater
; rainstorm
; slope stability
; soil property
; vegetation cover
; Colorado
; Front Range
; Rocky Mountains
英文摘要: More than 1100 debris flows were mobilized from shallow landslides during a rainstorm from 9 to 13 September 2013 in the Colorado Front Range, with the vast majority initiating on sparsely vegetated, south facing terrain. To investigate the physical processes responsible for the observed aspect control, we made measurements of soil properties on a densely forested north facing hillslope and a grassland-dominated south facing hillslope in the Colorado Front Range and performed numerical modeling of transient changes in soil pore water pressure throughout the rainstorm. Using the numerical model, we quantitatively assessed interactions among vegetation, rainfall interception, subsurface hydrology, and slope stability. Results suggest that apparent cohesion supplied by roots was responsible for the observed connection between debris flow initiation and slope aspect. Results suggest that future climate-driven modifications to forest structure could substantially influence landslide hazards throughout the Front Range and similar water-limited environments where vegetation communities may be more susceptible to small variations in climate. ©2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84987748040&doi=10.1002%2f2016GL070741&partnerID=40&md5=bc499bbb2571fb078f53917d3608b888
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9632
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: U.S. Geological Survey, Denver, CO, United States
Recommended Citation:
McGuire L.A.,Rengers F.K.,Kean J.W.,et al. Elucidating the role of vegetation in the initiation of rainfall-induced shallow landslides: Insights from an extreme rainfall event in the Colorado Front Range[J]. Geophysical Research Letters,2016-01-01,43(17).