Low Water Productivity for Rice in Bihar, IndiaA Critical Analysis

doi:10.3390/w10081082

	Low Water Productivity for Rice in Bihar, IndiaA Critical Analysis
	Najmuddin, Omaid 1,2,3; Rasul, Golam 1; Hussain, Abid 1; Molden, David 1; Wahid, Shahriar 1,4; Debnath, Bijan 1
刊名	WATER
	2018-08-01
卷号	10 期号:8 页码:17
关键词	water productivity marginal physical productivity spatiotemporal perspective Koshi River basin Bihar India
ISSN号	2073-4441
DOI	10.3390/w10081082
通讯作者	Najmuddin, Omaid(omaid_najmuddin@yahoo.com)
英文摘要	Rice is the most important crop for food security and livelihoods of the rural population in Bihar, India. In spite of good soil and water resources, rice water productivity (WP) is very low in Bihar. Trends in WP and key factors influencing WP over 20 years (1991-2010) in 11 Bihar districts were analysed using panel data to help elucidate reasons for low WP values. The annual average rice yield of 938 kg/ha, WP of 0.22 kg/m(3), and marginal physical productivity (MPP) of 249 g/m(3) are very low in Bihar compared to both the national average for India and other rice growing areas in the world. Rice WP and MPP were higher for the garma (dry) season than for the kharif (monsoon) season. Temporal analysis showed that WP was slowly declining in most districts, while spatial analysis showed a significant variation in WP across the districts. Regression analysis showed that the availability of irrigation facilities, occurrence of flood and drought, and cropping intensity had significant influence on rice WP. Causes for temporal and spatial changes in WP are highlighted and actions to improve rice WP in Bihar are suggested.
资助项目	Department of Foreign Affairs and Trade (DFAT) of Australia
WOS关键词	RIVER-BASIN ; LAND-USE ; IRRIGATION ; ASIA ; POPULATION ; MANAGEMENT ; EFFICIENCY ; SECURITY ; DISTRICT ; MARKETS
WOS研究方向	Water Resources
语种	英语
出版者	MDPI
WOS记录号	WOS:000448462700116
资助机构	Department of Foreign Affairs and Trade (DFAT) of Australia
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/52582]
专题	中国科学院地理科学与资源研究所
通讯作者	Najmuddin, Omaid
作者单位	1.Int Ctr Integrated Mt Dev ICIMOD, Lalitpur 44700, Nepal 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.CSIRO, Canberra, ACT 2601, Australia
推荐引用方式 GB/T 7714	Najmuddin, Omaid,Rasul, Golam,Hussain, Abid,et al. Low Water Productivity for Rice in Bihar, IndiaA Critical Analysis[J]. WATER,2018,10(8):17.
APA	Najmuddin, Omaid,Rasul, Golam,Hussain, Abid,Molden, David,Wahid, Shahriar,&Debnath, Bijan.(2018).Low Water Productivity for Rice in Bihar, IndiaA Critical Analysis.WATER,10(8),17.
MLA	Najmuddin, Omaid,et al."Low Water Productivity for Rice in Bihar, IndiaA Critical Analysis".WATER 10.8(2018):17.