Dynamics of evapotranspiration partitioning for apple trees of different ages in a semiarid region of northwest China

doi:10.1016/j.agwat.2017.05.010

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, Di 1,2; Wang, Li 1,3; 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.
文章类型	Article
	2017
发表期刊	AGRICULTURAL WATER MANAGEMENT
ISSN	0378-3774
通讯作者邮箱	wangli5208@nwsuaf.edu.cn
卷号	191 页码:1-15
摘要	Evapotranspiration 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.
关键词	Canopy Interception Soil Evaporation Tree Transpiration Evapotranspiration Apple Tree Age
学科领域	Agriculture ; Water Resources
DOI	10.1016/j.agwat.2017.05.010
URL	查看原文
收录类别	SCI
出版地	AMSTERDAM
语种	英语
WOS记录号	WOS:000408179900001
出版者	ELSEVIER SCIENCE BV
项目资助者	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] ; 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]
引用统计	被引频次：11[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	sbir.nwafu.edu.cn/handle/361005/7933
专题	水保所科研产出--SCI_2017--SCI
通讯作者	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.
作者单位	1.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
推荐引用方式 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.