干旱区生态环境知识资源中心(Arid): Satellite derived crop coefficient and crop water stress for soybean in semi-arid region of India

Arid

	Satellite derived crop coefficient and crop water stress for soybean in semi-arid region of India
	Kumar, Sudheer; Attri, S. D.; Soni, Anil Kumar; Vishnoi, Lata; Singh, K. K.; Sharma, Gaurav; Tripathi, Jayant Nath
通讯作者	Kumar, S (corresponding author), Indian Meteorol Dept, New Delhi, India.
会议名称	3rd International Symposium on Advances in Agrometeorology for Managing Climatic Risks of Farmers (INAGMET)
会议日期	FEB 11-13, 2019
会议地点	New Delhi, INDIA
英文摘要	Remote sensing-based Crop evapotranspiration can help and provide guidance for crop water management. This paper quantified crop water requirement and crop water stress for soybean according to vegetation cover and land surface changes in the semi-arid region using remote sensing data. In this regard, MODIS products of land surface temperature (LST) and Normalized Difference Vegetation Index (NDVI) were used to estimate crop coefficient (Kc) and crop water stress index (CWSI) for period of 2016-17. The FAO-Penman- Monteith (FPM) model was employed to compute reference evapotranspiration (ETo). Lysimeter crop data were collected IARI, New Delhi to evaluate performance of remote sensed crop evapotranspiration (ETc). The performance evaluation results viz. MBE, RMSE and MPE were found 0.44mm, 0.66mm and 25.15% respectively. A linear relation between lysimeter and remote sensed crop coefficient were established correlation coefficient as high as 0.86. Crop water requirement during crop growing period were 304.40mm and 349.50mm by remote sensing and lysimeter respectively. Crop was not suffering from water stress during initial to mid-stage, however, increasing trend was found at late-stage. It can be inferred that ETc and CWSI developed from remotely sensed indices are a useful tool for quantifying crop water consumption at regional and field scales.
英文关键词	Soybean Crop Coefficient (Kc) MODIS Products and Crop Water Stress Index (CWSI)
来源出版物	JOURNAL OF AGROMETEOROLOGY
ISSN	0972-1665
出版年	2019
卷号	21
页码	140-146
出版者	ASSOC AGROMETEROLOGISTS
类型	Article; Proceedings Paper
语种	英语
收录类别	CPCI-S
WOS记录号	WOS:000595340000020
WOS关键词	REFERENCE EVAPOTRANSPIRATION ; MODEL
WOS类目	Agronomy ; Meteorology & Atmospheric Sciences
WOS研究方向	Agriculture ; Meteorology & Atmospheric Sciences
资源类型	会议论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/369948
作者单位	[Kumar, Sudheer; Attri, S. D.; Soni, Anil Kumar; Vishnoi, Lata; Singh, K. K.; Sharma, Gaurav] Indian Meteorol Dept, New Delhi, India; [Soni, Anil Kumar; Tripathi, Jayant Nath] Univ Allahabad, Dept Earth & Planetary Sci, Allahabad, Uttar Pradesh, India
推荐引用方式 GB/T 7714	Kumar, Sudheer,Attri, S. D.,Soni, Anil Kumar,et al. Satellite derived crop coefficient and crop water stress for soybean in semi-arid region of India[C]:ASSOC AGROMETEROLOGISTS,2019:140-146.