The system is under maintenance.

Show simple item record

dc.contributor.authorTian, Lei
dc.contributor.authorJin, Jiming
dc.contributor.authorWu, Pute
dc.contributor.authorNiu, Guo-Yue
dc.date.accessioned2019-05-28T23:52:19Z
dc.date.available2019-05-28T23:52:19Z
dc.date.issued2018-12
dc.identifier.citationTian L, Jin J, Wu P, Niu G-Y. Assessment of the Effects of Climate Change on Evapotranspiration with an Improved Elasticity Method in a Nonhumid Area. Sustainability. 2018; 10(12):4589.en_US
dc.identifier.issn2071-1050
dc.identifier.doi10.3390/su10124589
dc.identifier.urihttp://hdl.handle.net/10150/632411
dc.description.abstractClimatic elasticity is a crucial metric to assess the hydrological influence of climate change. Based on the Budyko equation, this study performed an analytical derivation of the climatic elasticity of evapotranspiration (ET). With this derived elasticity, it is possible to quantitatively separate the impacts of precipitation, air temperature, net radiation, relative humidity, and wind speed on ET in a watershed. This method was applied in the Wuding River Watershed (WRW), located in the center of the Yellow River Watershed of China. The estimated rate of change in ET caused by climatic variables is -10.69 mm/decade, which is close to the rate of change in ET (-8.06 mm/decade) derived from observable data. The accurate estimation with the elasticity method demonstrates its reliability. Our analysis shows that ET in the WRW had a significant downward trend, but the ET ratio in the WRW has increased continually over the past 52 years. Decreasing precipitation is the first-order cause for the reduction of ET, and decreasing net radiation is the secondary cause. Weakening wind speed also contributed to this reduction. In contrast, regional warming led to an increase in ET that partly offset the negative contributions from other climatic variables. Moreover, reforestation can affect the energy budget of a watershed by decreasing albedo, compensating for the negative influence of global dimming. The integrated effect from precipitation and temperature can affect the energy budget of a watershed by causing a large fluctuation in winter albedo.en_US
dc.description.sponsorshipNational Natural Science Foundation of China [41571030, 91637209, 91737306]; Utah Agricultural Experiment Stationen_US
dc.language.isoenen_US
dc.publisherMDPIen_US
dc.relation.urlhttp://www.mdpi.com/2071-1050/10/12/4589en_US
dc.rights© 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license.en_US
dc.subjectclimate changeen_US
dc.subjectevapotranspirationen_US
dc.subjectBudyko equationen_US
dc.subjectclimatic elasticityen_US
dc.titleAssessment of the Effects of Climate Change on Evapotranspiration with an Improved Elasticity Method in a Nonhumid Areaen_US
dc.typeArticleen_US
dc.contributor.departmentUniv Arizona, Biosphere 2en_US
dc.contributor.departmentUniv Arizona, Dept Hydrol & Water Resourcesen_US
dc.identifier.journalSUSTAINABILITYen_US
dc.description.noteOpen Access Journalen_US
dc.description.collectioninformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.en_US
dc.eprint.versionFinal published versionen_US
dc.source.journaltitleSustainability
dc.source.volume10
dc.source.issue12
dc.source.beginpage4589
refterms.dateFOA2019-05-28T23:52:19Z


Files in this item

Thumbnail
Name:
sustainability-10-04589-v3.pdf
Size:
7.841Mb
Format:
PDF
Description:
Final Published version

This item appears in the following Collection(s)

Show simple item record