干旱区生态环境知识资源中心(Arid): Managing irrigation supplies effectively under interrupted electricity supply: Lesson from an arid region of India

Arid

DOI	10.1016/j.agwat.2022.107465
	Managing irrigation supplies effectively under interrupted electricity supply: Lesson from an arid region of India
	Kumar, Sanjay; Machiwal, Deepesh; Tetarwal, Arvind Singh; Ramniwas; Vaishnav, Meera
通讯作者	Kumar, S
来源期刊	AGRICULTURAL WATER MANAGEMENT
ISSN	0378-3774
EISSN	1873-2283
出版年	2022
卷号	263
英文摘要	Groundwater extraction through electrically operated tubewells offers a resilient source of irrigation supply in arid regions especially during droughts. However, interrupted and low-voltage electric supply with limited availability and frequent trips increases repair and maintenance costs of tubewell irrigation and reduces tubewell discharge resulting in less-efficient and non-uniform water application. This study evaluates performance of an indigenous system of groundwater irrigation that was evolved over the generations in arid region of Gujarat, India to address electricity-triggered issues of irrigated agriculture. In this system, groundwater extracted during electricity availability hours is stored in surface reservoirs for later supplying to irrigate crops under gravity flow irrespective of electricity availability. A comprehensive survey of the indigenous system is conducted in a village of Gujarat to make inventory of all tubewells and storage reservoirs about their depth, size, pump type and horsepower, command area, crops, irrigation timing and frequency, etc. Discharge of tubewells was measured and their locations were recorded. Results revealed that the indigenous system is advantageous over the direct tubewell-irrigation in terms of 37.4% higher water-delivery rate and 50% more average irrigation capacity. These findings prove adequacy of the indigenous system in regulating irrigation supplies to deal with electricity-induced intricacies of irrigated agriculture. Amount of water lost through unit area of earthen (seepage and evaporation-2.77 m) and masonry (evaporation-1.22 m) reservoirs collectively accounts for a negligible proportion (0.9%) of groundwater draft. Furthermore, a methodology is devised to precisely estimate village-level groundwater draft for irrigation, which is validated by 0.9% deviation between observed and predicted values of groundwater draft. Moreover, the indigenous system is simple, cost-effective and easy to implement in other parts of the world especially in arid regions of the developing countries where low-voltage and intermitted electricity supply persists.
英文关键词	Groundwater irrigation Groundwater draft estimation Storage reservoir Irrigation capacity Indigenous system Arid region
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000793039800004
WOS关键词	GROUNDWATER ; RECHARGE ; GUJARAT
WOS类目	Agronomy ; Water Resources
WOS研究方向	Agriculture ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/391587
推荐引用方式 GB/T 7714	Kumar, Sanjay,Machiwal, Deepesh,Tetarwal, Arvind Singh,et al. Managing irrigation supplies effectively under interrupted electricity supply: Lesson from an arid region of India[J],2022,263.
APA	Kumar, Sanjay,Machiwal, Deepesh,Tetarwal, Arvind Singh,Ramniwas,&Vaishnav, Meera.(2022).Managing irrigation supplies effectively under interrupted electricity supply: Lesson from an arid region of India.AGRICULTURAL WATER MANAGEMENT,263.
MLA	Kumar, Sanjay,et al."Managing irrigation supplies effectively under interrupted electricity supply: Lesson from an arid region of India".AGRICULTURAL WATER MANAGEMENT 263(2022).