Estimating Evapotranspiration and Its Components in Cotton Fields under Deficit Irrigation Conditions

doi:10.15244/pjoes/80895

	Estimating Evapotranspiration and Its Components in Cotton Fields under Deficit Irrigation Conditions
	Wu, Na 1,2; Yang, Chuanjie 3; Luo, Yi 1,2,3; Sun, Lin 3
刊名	POLISH JOURNAL OF ENVIRONMENTAL STUDIES
	2019
卷号	28 期号:1 页码:393-405
关键词	crop coefficient SIMDualKc model crop transpiration soil evaporation
ISSN号	1230-1485
DOI	10.15244/pjoes/80895
通讯作者	Luo, Yi(luoyi@igsnrr.ac.cn)
英文摘要	Estimating field crop evapotranspiration (ETc) along with its components of soil evaporation and crop transpiration is crucial for developing effective agricultural water-saving strategies. This study separately estimated ETc and its components in cotton fields using a SIMDualKc dual crop coefficient model. Data from a 2-year experiment (2010-2011) were used for model calibration and validation analysis. The experimental plots were irrigated at 1.00, 0.85, 0.70, 0.55, and 0.45 of full irrigation amount in north Xinjiang, China. Based on the results, SIMDualKc accurately estimated actual evapotranspiration (ETc (adj)) and its components under deficit drip irrigation conditions. Cotton field transpiration accounted for 85.4-94.3% of the ETc in the study area. Although plastic film significantly limited evaporative water loss, the fraction of water loss was still 5.7-14.6% of irrigation water. The adopted estimation method could lead to better understanding of where and when water loss occurs and how much water should be used for maximal benefit. A better understanding of these factors is critical for sustainable agricultural water management practices.
资助项目	Natural Science Foundation of China[41130641] ; Natural Science Foundation of China[41390461] ; Natural Science Foundation of China[41371115]
WOS关键词	CROP COEFFICIENT APPROACH ; ENERGY BALANCE METHOD ; WATER-USE ; DRIP IRRIGATION ; WINTER-WHEAT ; MAIZE ; EVAPORATION ; MANAGEMENT ; MODEL ; FULL
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	HARD
WOS记录号	WOS:000458947300040
资助机构	Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/49431]
专题	中国科学院地理科学与资源研究所
通讯作者	Luo, Yi
作者单位	1.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, State Key Lab Desert & Oasis Ecol, Urumqi, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Wu, Na,Yang, Chuanjie,Luo, Yi,et al. Estimating Evapotranspiration and Its Components in Cotton Fields under Deficit Irrigation Conditions[J]. POLISH JOURNAL OF ENVIRONMENTAL STUDIES,2019,28(1):393-405.
APA	Wu, Na,Yang, Chuanjie,Luo, Yi,&Sun, Lin.(2019).Estimating Evapotranspiration and Its Components in Cotton Fields under Deficit Irrigation Conditions.POLISH JOURNAL OF ENVIRONMENTAL STUDIES,28(1),393-405.
MLA	Wu, Na,et al."Estimating Evapotranspiration and Its Components in Cotton Fields under Deficit Irrigation Conditions".POLISH JOURNAL OF ENVIRONMENTAL STUDIES 28.1(2019):393-405.