ISWC OpenIR  > 水保所科研产出--SCI  > 2017--SCI
Dynamics of evapotranspiration partitioning for apple trees of different ages in a semiarid region of northwest China
Wang, Di1,2; Wang, Li1,3; Wang, L (reprint author), Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, 26 Xinong Rd, Yangling 712100, Shaanxi, Peoples R China.
SubtypeArticle
2017
Source PublicationAGRICULTURAL WATER MANAGEMENT
ISSN0378-3774
description.correspondentemailwangli5208@nwsuaf.edu.cn
Volume191Pages:1-15
AbstractEvapotranspiration in semiarid regions generally represents the greatest loss of water from an ecosystem and is sensitive to changes in the cover of vegetation. In this work, we compared the effects of apple tree of different ages by partitioning evapotranspiration into canopy interception (calculated), tree transpiration (thermal-dissipation probes) and soil evaporation (micro-lysimeter) in a semiarid region of northwest China from May to September in 2012, 2013 and 2014. Tree age had a clear influence on evapotranspiration partitioning. Daily transpiration and evapotranspiration were always higher for the 17- than the 7-year-old trees. Monthly canopy interception and transpiration of the 17-year-old trees were always higher, and monthly soil evaporation was always lower than the 7-year-old trees. Evapotranspiration was 339.1, 341.4 and 312.4 mm and 361.1, 367.2 and 336.3 mm for the 7- and 17-year-old trees in 2012, 2013 and 2014, respectively. Annual soil evaporation accounted for a large proportion of the evapotranspiration for the 7-year-old apple trees, ranging from 51.7 to 53.6%, and transpiration accounted for a large proportion of the evapotranspiration for the 17-year-old apple trees, ranging from 47.8 to 49.1%. Reference evapotranspiration was low during our experimental periods, and the relationship between actual evapotranspiration and reference evapotranspiration differed between the 7- and 17-year-old trees. Tree age was mostly responsible for the differences in evapotranspiration and its partitioning due to the morphologies of the trees. Tree age should therefore be taken into account when assessing the influence of evapotranspiration by apple trees on regional water budgets under our or similar climatic conditions. (C) 2017 Elsevier B.V. All rights reserved.
KeywordCanopy Interception Soil Evaporation Tree Transpiration Evapotranspiration Apple Tree Age
Subject AreaAgriculture ; Water Resources
DOI10.1016/j.agwat.2017.05.010
URL查看原文
Indexed BySCI
Publication PlaceAMSTERDAM
Language英语
WOS IDWOS:000408179900001
PublisherELSEVIER SCIENCE BV
Funding OrganizationNational Key Research and Development Plan [2016YFC0501604]; National Natural Science Foundation of China [41390463, 41530854]; Program for New Century Excellent Talents in University [NCET-13-0484] ; National Key Research and Development Plan [2016YFC0501604]; National Natural Science Foundation of China [41390463, 41530854]; Program for New Century Excellent Talents in University [NCET-13-0484]
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Document Type期刊论文
Identifierhttp://ir.iswc.ac.cn/handle/361005/7933
Collection水保所科研产出--SCI_2017--SCI
Corresponding AuthorWang, L (reprint author), Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, 26 Xinong Rd, Yangling 712100, Shaanxi, Peoples R China.
Affiliation1.Northwest A&F Univ, Coll Nat Resources & Environm, 26 Xinong Rd, Yangling City 712100, Shaanxi, Peoples R China
2.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, 26 Xinong Rd, Yangling 712100, Shaanxi, Peoples R China
3.Chinese Acad Sci, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China
4.Minist Water Resources, Yangling 712100, Shaanxi, Peoples R China
Recommended Citation
GB/T 7714
Wang, Di,Wang, Li,Wang, L . Dynamics of evapotranspiration partitioning for apple trees of different ages in a semiarid region of northwest China[J]. AGRICULTURAL WATER MANAGEMENT,2017,191:1-15.
APA Wang, Di,Wang, Li,&Wang, L .(2017).Dynamics of evapotranspiration partitioning for apple trees of different ages in a semiarid region of northwest China.AGRICULTURAL WATER MANAGEMENT,191,1-15.
MLA Wang, Di,et al."Dynamics of evapotranspiration partitioning for apple trees of different ages in a semiarid region of northwest China".AGRICULTURAL WATER MANAGEMENT 191(2017):1-15.
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