干旱区生态环境知识资源中心(Arid): Socio-hydrological drivers of agricultural water use in small reservoirs

Arid

DOI	10.1016/j.agwat.2019.03.001
	Socio-hydrological drivers of agricultural water use in small reservoirs
	Ogilvie, Andrew 1,2; Riaux, Jeanne 1; Massuel, Sylvain 1; Mulligan, Mark 2; Belaud, Gilles 1; Le Goulven, Patrick 1; Calvez, Roger 1
通讯作者	Ogilvie, Andrew
来源期刊	AGRICULTURAL WATER MANAGEMENT
ISSN	0378-3774
EISSN	1873-2283
出版年	2019
卷号	218 页码:17-29
英文摘要	Millions of small reservoirs built across semi-arid areas present a potential to support agricultural livelihoods of rural smallholders. The scale and geographical dispersion of these multiple lakes restrict the understanding of these coupled human-water systems and the identification of adequate strategies to support riparian farmers. This research developed a multi-scalar interdisciplinary approach to characterise the hydrological and wider drivers of agricultural water use around multiple small reservoirs in semi-arid central Tunisia. The combination of field surveys, quantitative questionnaires and qualitative, semi-structured interviews confirmed minimal withdrawals, but highlighted the diversification of practices, the rise in fruit farming and peripheral benefits generated here by the development of 56 lakes. 48% of lakes provide residual benefits for the occasional watering of on average 300 fruit trees and support to downstream wells exploited for irrigation. A further 13 lakes (23%) provide high levels of benefits (900 fruit trees each), albeit with low equity, supporting essentially established farmers. The analysis of surface water assessments every 8 days from Landsat 5-8 imagery over 1999-2014, provides unprecedented insights into the significant water scarcity and unreliability that impedes agricultural intensification on 86% of small lakes. Limited storage capacities and prolonged droughts highlight the need for small reservoirs in this climatic context to retain a supplementary irrigation objective and not strive to support widespread intensification of irrigated practices. Many farmers lack the capabilities to increase their withdrawals and suffer physical and economic water access difficulties, mismanagement, compounded through limited and short-term government assistance. Individual successes resulted from farmers' economic resilience and means to secure alternate water supplies during dry spells.
英文关键词	Socio-hydrology Remote sensing Small reservoirs Water harvesting Tunisia
类型	Article
语种	英语
国家	France ; England
开放获取类型	Bronze, Green Published
收录类别	SCI-E
WOS记录号	WOS:000467512800003
WOS关键词	IRRIGATION ; SCIENCE ; PRODUCTIVITY ; CATCHMENT ; SYSTEMS
WOS类目	Agronomy ; Water Resources
WOS研究方向	Agriculture ; Water Resources
来源机构	French National Research Institute for Sustainable Development ; University of London
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/214019
作者单位	1.Univ Montpellier, Montpellier SupAgro, IRSTEA, G EAU,AgroParisTech,Cirad,IRD, Montpellier, France; 2.Kings Coll London, Dept Geog, London WC2R 2LS, England
推荐引用方式 GB/T 7714	Ogilvie, Andrew,Riaux, Jeanne,Massuel, Sylvain,et al. Socio-hydrological drivers of agricultural water use in small reservoirs[J]. French National Research Institute for Sustainable Development, University of London,2019,218:17-29.
APA	Ogilvie, Andrew.,Riaux, Jeanne.,Massuel, Sylvain.,Mulligan, Mark.,Belaud, Gilles.,...&Calvez, Roger.(2019).Socio-hydrological drivers of agricultural water use in small reservoirs.AGRICULTURAL WATER MANAGEMENT,218,17-29.
MLA	Ogilvie, Andrew,et al."Socio-hydrological drivers of agricultural water use in small reservoirs".AGRICULTURAL WATER MANAGEMENT 218(2019):17-29.