干旱区生态环境知识资源中心(Arid): Estimation of Crop Water Requirement Based on Planting Structure Extraction from Multi-Temporal MODIS EVI

Arid

DOI	10.1007/s11269-021-02838-y
	Estimation of Crop Water Requirement Based on Planting Structure Extraction from Multi-Temporal MODIS EVI
	Xu, Changchun; Zhang, Xicheng; Zhang, Jinxia; Chen, Yapeng; Yami, Teshome L.; Hong, Yang
通讯作者	Xu, CC (corresponding author), Xinjiang Univ, Coll Resource & Environm Sci, Key Lab Oasis Ecol, Urumqi, Xinjiang, Peoples R China.
来源期刊	WATER RESOURCES MANAGEMENT
ISSN	0920-4741
EISSN	1573-1650
出版年	2021
卷号	35 期号:7 页码:2231-2247
英文摘要	Estimation of crop water requirement (CWR) is key to the rational water use and agricultural water conservation in arid regions. Using remote sensing data to obtain long-term CWR over large areas helps water resources management in water-scarce areas. This study, taking the Kaidu-Kongqi River basin in arid northwest China as the study area, investigated the feasibility of synergistically using phenological characteristics, Savitzky-Golay filter, harmonic analysis and decision tree to extract crop planting structures (CPS) from MODIS EVI, and meanwhile analyzed the spatiotemporal variation in the estimated CWR. The results show that the integrated method for CPS identification and extraction is feasible and reliable with the classification accuracy over 80%. The mid-season stage requires the most water and cash crops need more water than cereal crops. Summer accounts for 69% the total growing season water use. The significant increase in the area of high water demand crops such as cotton raised the total CWR of the basin surging from 14.91x 10(8)m(3) in 2000 to 34.92x10(8)m(3) in 2017. The spatial distribution of CWR was more related to crop types and area than to climatic conditions. Controlling the expansion of arable land and optimizing the agricultural planting structure remain important tasks for the sustainable management of water resources in the basin.
英文关键词	Crop water requirement Penman-Monteith Remote sensing Phenological characteristics Savitzky-Golay filter HANTS
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000648008000001
WOS关键词	TIME-SERIES DATA ; REFERENCE EVAPOTRANSPIRATION ; RANDOM-FOREST ; CLASSIFICATION ; QUALITY ; MODELS
WOS类目	Engineering, Civil ; Water Resources
WOS研究方向	Engineering ; Water Resources
来源机构	中国科学院新疆生态与地理研究所 ; 新疆大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/351982
作者单位	[Xu, Changchun; Zhang, Xicheng; Zhang, Jinxia] Xinjiang Univ, Coll Resource & Environm Sci, Key Lab Oasis Ecol, Urumqi, Xinjiang, Peoples R China; [Chen, Yapeng] Chinese Acad Sci, Xinjiang Inst Ecol & Geog, State Key Lab Desert & Oasis Ecol, Urumqi, Xinjiang, Peoples R China; [Yami, Teshome L.; Hong, Yang] Univ Oklahoma, Sch Civil Engn & Environm Sci, Hydrometeorol & Remote Sensing Lab, Norman, OK 73019 USA
推荐引用方式 GB/T 7714	Xu, Changchun,Zhang, Xicheng,Zhang, Jinxia,et al. Estimation of Crop Water Requirement Based on Planting Structure Extraction from Multi-Temporal MODIS EVI[J]. 中国科学院新疆生态与地理研究所, 新疆大学,2021,35(7):2231-2247.
APA	Xu, Changchun,Zhang, Xicheng,Zhang, Jinxia,Chen, Yapeng,Yami, Teshome L.,&Hong, Yang.(2021).Estimation of Crop Water Requirement Based on Planting Structure Extraction from Multi-Temporal MODIS EVI.WATER RESOURCES MANAGEMENT,35(7),2231-2247.
MLA	Xu, Changchun,et al."Estimation of Crop Water Requirement Based on Planting Structure Extraction from Multi-Temporal MODIS EVI".WATER RESOURCES MANAGEMENT 35.7(2021):2231-2247.