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Changes and determining factors of crop evapotranspiration derived from satellite-based dual crop coefficients in North China Plain

文献类型：期刊论文

作者Tan, Qinghua1,4; Liu, Yujie1,4; Pan, Tao1,4; Song, Xianfang1,2; Li, Xiaoyan3
刊名CROP JOURNAL
出版日期2022-10-01
卷号10期号:5页码:1496-1506
ISSN号2095-5421
关键词Actual crop evapotranspiration Determining factor North China Plain Rotation system Spatiotemporal variation
DOI10.1016/j.cj.2022.07.013
通讯作者Liu, Yujie(liuyujie@igsnrr.ac.cn) ; Pan, Tao(pantao@igsnrr.ac.cn)
英文摘要Evaluating actual crop evapotranspiration (ETc) variations and their determining factors under changing climates is crucial for agricultural irrigation management and crop productivity improvement in non-humid regions. This study analyzed the spatiotemporal characteristics and detected the determining factors of ETc for winter wheat and summer maize rotation system from 2000 to 2017 in the North China Plain (NCP), by combining the FAO-56 dual crop coefficient approach with remotely sensed vegetation indices (VIs). The results indicated that daily air temperature increased in varying degrees while wind speed and sunshine hours decreased slightly during the growing season of winter wheat and summer maize over the study period. The trends of relative humidity and effective precipitation varied in crop growing seasons. Based on the validated relationship of dual crop coefficients and VIs, the estimated multi-year average ETc of winter wheat (370.29 +/- 31.28 mm) was much higher than summer maize (281.85 +/- 20.14 mm), and the rotation cycle was 652.43 +/- 27.67 mm. Annual ETc of winter wheat and the rotation cycle increased by 2.96 mm a (1) and 1.77 mm a (1), respectively. However, the ETc of summer maize decreased with distinct spatial variation. Spatially, winter wheat ETc increased significantly in the northeast NCP, covering the Beijing-Tianjin-Hebei areas. Meanwhile, significant increases in summer maize ETc were detected in the southwest NCP. The sensitivity and contribution analysis showed that ETc of winter wheat and summer maize was positively sensitive to temperature, wind speed, and sunshine hours while negatively to relative humidity. Moreover, wind speed and sunshine hours contributed most to changes in ETc (around 20%-40%). (C) 2022 Crop Science Society of China and Institute of Crop Science, CAAS. Production and hosting by Elsevier B.V. on behalf of KeAi Communications Co., Ltd.
WOS关键词SUMMER MAIZE ROTATION ; WATER-USE EFFICIENCY ; WINTER-WHEAT ; CLIMATE-CHANGE ; IRRIGATION WATER ; GROUNDWATER DEPLETION ; TEMPORAL VARIABILITY ; REQUIREMENTS ; IMPACTS ; SYSTEM
资助项目Strategic Priority Research Program of the Chinese Academy of Sciences[XDA28060200] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA20040301] ; National Science Fund for Excellent Young Scholars[42122003] ; Youth Innovation Promotion Association, CAS[Y202016]
WOS研究方向Agriculture ; Plant Sciences
语种英语
出版者KEAI PUBLISHING LTD
WOS记录号WOS:000888639300001
资助机构Strategic Priority Research Program of the Chinese Academy of Sciences ; National Science Fund for Excellent Young Scholars ; Youth Innovation Promotion Association, CAS
源URL[http://ir.igsnrr.ac.cn/handle/311030/187510]  
专题中国科学院地理科学与资源研究所
通讯作者Liu, Yujie; Pan, Tao
作者单位1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China
3.Beijing Normal Univ, Fac Geog Sci, State Key Lab Earth Surface Proc & Resource Ecol, Beijing 100875, Peoples R China
4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China
推荐引用方式
GB/T 7714		 Tan, Qinghua,Liu, Yujie,Pan, Tao,et al. Changes and determining factors of crop evapotranspiration derived from satellite-based dual crop coefficients in North China Plain[J]. CROP JOURNAL,2022,10(5):1496-1506.
APA Tan, Qinghua,Liu, Yujie,Pan, Tao,Song, Xianfang,&Li, Xiaoyan.(2022).Changes and determining factors of crop evapotranspiration derived from satellite-based dual crop coefficients in North China Plain.CROP JOURNAL,10(5),1496-1506.
MLA Tan, Qinghua,et al."Changes and determining factors of crop evapotranspiration derived from satellite-based dual crop coefficients in North China Plain".CROP JOURNAL 10.5(2022):1496-1506.

入库方式： OAI收割

来源：地理科学与资源研究所

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