DOI: 10.1002/2015GL066952
论文题名: Quantifying the effect of vegetation change on the regional water balance within the Budyko framework
作者: Zhang S. ; Yang H. ; Yang D. ; Jayawardena A.W.
刊名: Geophysical Research Letters
ISSN: 0094-9410
EISSN: 1944-9141
出版年: 2016
卷: 43, 期: 3 起始页码: 1140
结束页码: 1148
语种: 英语
英文关键词: Budyko framework
; quantitative assessment of runoff
; vegetation change
Scopus关键词: Catchments
; Conservation
; Elasticity
; Hydrology
; Reforestation
; Runoff
; Soil conservation
; Vegetation
; Water conservation
; Budyko framework
; Fraction of photosynthetically active radiations
; Large-scale afforestation
; Quantitative assessments
; Quantitative evaluation
; Regional water balance
; Soil and water conservation projects
; Vegetation change
; Climate change
; afforestation
; aridity
; catchment
; equation
; hydrological response
; landscape change
; photosynthetically active radiation
; quantitative analysis
; runoff
; vegetation dynamics
; water budget
; China
英文摘要: The Budyko framework is widely used to investigate the impacts of climate and landscape changes on regional hydrology, but quantifying the effect of vegetation change is still a challenge due to the lack of an explicit expression of vegetation in Budyko equations. This study establishes a relationship between the change in the landscape parameter in a Budyko equation and vegetation change (represented by fPAR, the fraction of Photosynthetically Active Radiation absorbed by vegetation) for catchments in China, where, due to large-scale soil and water conservation projects implemented by the Chinese government, vegetation and regional hydrology have changed substantially over the past 30 years. The ratio of landscape parameter change to the change in fPAR has a strong relationship with the aridity index, and thus, vegetation change can be converted into a change in the landscape parameter. Then, the fPAR elasticity of runoff is introduced and formulated under the Budyko framework. It provides a useful tool for the quantitative evaluation of the regional hydrological response to vegetation change, but the proposed relationship still needs to be evaluated in other catchments around the globe where large-scale afforestation or vegetation recovery has occurred. © 2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84976210613&doi=10.1002%2f2015GL066952&partnerID=40&md5=7a867a86145a121c53580d5338c16b61
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/10373
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: State Key Laboratory of Hydroscience and Engineering, Department of Hydraulic Engineering, Tsinghua University, Beijing, China
Recommended Citation:
Zhang S.,Yang H.,Yang D.,et al. Quantifying the effect of vegetation change on the regional water balance within the Budyko framework[J]. Geophysical Research Letters,2016-01-01,43(3).