干旱区生态环境知识资源中心(Arid): Water usage trends under intensive groundwater-irrigated agricultural development in a changing climate ? Evidence from Bangladesh

Arid

DOI	10.1016/j.agwat.2021.106873
	Water usage trends under intensive groundwater-irrigated agricultural development in a changing climate ? Evidence from Bangladesh
	Mojid, Mohammad A.; Mainuddin, Mohammed; Ibn Murad, Khandakar Faisal; Mac Kirby, John
通讯作者	Mojid, MA (corresponding author), Bangladesh Agr Univ, Mymensingh 2202, Bangladesh.
来源期刊	AGRICULTURAL WATER MANAGEMENT
ISSN	0378-3774
EISSN	1873-2283
出版年	2021
卷号	251
英文摘要	Comprehensive information on the past trend of local-level water usage of the cultivated crops is important for agricultural planning and forecasting water needs. This vital information is however deficient for the North-West (NW) region of Bangladesh. We estimated actual crop evapotranspiration (ET), total and crop-usable effective rainfalls (TER and ER, respectively) and irrigation requirement (IR) of 8 major crops and 8 cropping patterns over historical period (1985?2015) by using SWBcropwat model and trends of these water parameters by using MAKESENS tool for the 16 districts of the region. ET of the Rabi crops and cropping patterns revealed significant (p ? 0.05) decreasing trends in all districts, the average decrease being 13?31% in different districts. ER decreased significantly for most dry season crops in 4 districts. TER was often greater than ER for Kharif crops, which could not fully utilize TER always because of its non-uniform temporal distributions. IR showed significantly decreasing trend for the Rabi crops in 11 districts and increasing trend for the Kharif crops in 5 districts. Although ET and IR decreased in most cases, their total volumetric quantities showed significantly increasing trends due to expanded irrigated area in 16 districts over time; IR increased by 27?186% in different districts. Because of water scarcity and prospective economic benefit, farmers have been spontaneously adjusting crop selection ? shifting from higher-water demanding crops to lower water-demanding crop-cultivation ? during the last two decades. Our information would guide planning the agriculture of the NW region by selecting appropriate crops based on sustainable limit of groundwater resources. The employed methodology can evaluate crop suitability periodically for adjustment in any area.
英文关键词	Intensive irrigation Crop suitability Crop planning Sustainability
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000640519800003
WOS关键词	POTENTIAL IMPACT ; FOOD SECURITY ; WESTERN PART ; ARID REGION ; BORO RICE ; REQUIREMENTS ; RESOURCES ; AVAILABILITY ; ADAPTATION ; MODEL
WOS类目	Agronomy ; Water Resources
WOS研究方向	Agriculture ; Water Resources
来源机构	Commonwealth Scientific and Industrial Research Organisation
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/349342
作者单位	[Mojid, Mohammad A.] Bangladesh Agr Univ, Mymensingh 2202, Bangladesh; [Mainuddin, Mohammed; Mac Kirby, John] CSIRO Land & Water, Black Mt Sci & Innovat Pk, Canberra, ACT 2601, Australia; [Ibn Murad, Khandakar Faisal] Bangladesh Agr Res Inst, Gazipur 1701, Bangladesh
推荐引用方式 GB/T 7714	Mojid, Mohammad A.,Mainuddin, Mohammed,Ibn Murad, Khandakar Faisal,et al. Water usage trends under intensive groundwater-irrigated agricultural development in a changing climate ? Evidence from Bangladesh[J]. Commonwealth Scientific and Industrial Research Organisation,2021,251.
APA	Mojid, Mohammad A.,Mainuddin, Mohammed,Ibn Murad, Khandakar Faisal,&Mac Kirby, John.(2021).Water usage trends under intensive groundwater-irrigated agricultural development in a changing climate ? Evidence from Bangladesh.AGRICULTURAL WATER MANAGEMENT,251.
MLA	Mojid, Mohammad A.,et al."Water usage trends under intensive groundwater-irrigated agricultural development in a changing climate ? Evidence from Bangladesh".AGRICULTURAL WATER MANAGEMENT 251(2021).