Global water crisis and future food security in an era of climate change

Hanjra, Munir A.; Qureshi, Muhammad Ejaz

doi:10.1016/j.foodpol.2010.05.006

Cited by 1,062 publications

(616 citation statements)

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“…This relevance is highlighted by researchers (e.g. Godfray et al 2010;Hanjra and Qureshi 2010;Tilman and Clark 2014) acknowledging the complexities in designing interventions to alleviate poverty and promote food security while sustaining CPRs and environmental systems more generally. The World Bank Group (2013) observed accordingly how expansion of farming frontiers into forested lands is greatly increasing the challenges of reducing greenhouse gas emissions through land-use changes.…”

Section: Introductionmentioning

confidence: 99%

A social-ecological systems framework for food systems research: accommodating transformation systems and their products

Marshall¹

2015

Int J Commons

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Abstract:The social-ecological systems (SES) framework was developed to support communication across the multiple disciplines concerned with sustainable provision and/or appropriation of common-pool resources (CPRs). Transformation activities (e.g. processing, distribution, retailing) in which value is added to resource units appropriated from CPRs were assumed in developing the framework to be exogenous to the SES of focal concern. However, provision and appropriation of CPRs are nowadays often closely integrated with the market economy, so significant interdependence exists between many CPR provision/appropriation activities and the activities in which appropriated resource units are transformed into the products ultimately marketed or consumed. This paper presents a modified version of the SES framework designed to better account for transformation activities in order to be more suitable for diagnosing those sustainability problems where it is inappropriate to define all such activities as exogenous to the SES of focal concern. The need for such modification was identified in a research project examining the challenges faced by Cambodian cattle-owning smallholders in accessing value chains for premium-priced beef. Hence the immediate focus was on strengthening the SES framework's value for facilitating a multi-disciplinary diagnostic approach to food system research projects of this kind. The modified SES framework's potential in this respect was illustrated by a preliminary application that drew on literature reviewed for the Cambodian project. Significant further potential exists in using the modified framework as a foundation from which to develop a version that is suitable for application to SESs in which transformation systems are appropriately represented as endogenous. Maintaining consistency with the standard SES framework will enable communication to occur more effectively between food system researchers and CPR scholars more generally. 882Graham R. Marshall

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Section: Introductionmentioning

confidence: 99%

A social-ecological systems framework for food systems research: accommodating transformation systems and their products

Marshall¹

2015

Int J Commons

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“…In order to achieve this, it is important to move into a cyclic process of reallocating water from a use that produces low or no benefits to one that generates higher benefits (Molden, 1997;Molden and Sakthivadivel, 1999) and thus achieves more welfare per drop of water (Molden et al, 2010). The change in the cropping pattern is one of the measures available to policymakers to meet the demand for scarce water, to increase food production through better exploitation of energy and land resources, and to tactically adapt to climate change (Hanjra and Qureshi, 2010).…”

Section: Introductionmentioning

confidence: 99%

Effects of the shallow water table on water use of winter wheat and ecosystem health: Implications for unlocking the potential of groundwater in the Fergana Valley (Central Asia)

Karimov

Šimůnek

Hanjra

et al. 2014

Agricultural Water Management

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100

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a b s t r a c tThis paper analyzes the effect of the shallow water table on water use of the winter wheat (Triticum aestivum L.) that has replaced alfalfa (Medicago sativa) on the irrigated lands of the Fergana Valley, upstream of the Syrdarya River, in Central Asia. The effect of the shallow water table is investigated using HYDRUS-1D. Numerical simulations show that the contribution of the groundwater to evapotranspiration increases with a rising water table and decreases with increasing irrigation applications. Under irrigation conditions, an increase in the groundwater evapotranspiration is associated mainly with an increase in evaporation loss, causing a buildup of salinity in the crop root zone. Evaporation losses from fields planted with winter wheat after the harvest amount up to 45-47% of total evaporation thus affecting soil salinity and ecosystem health. Promoting the use of groundwater for irrigation in order to lower the groundwater table is suggested to achieve water savings from the change in the cropping pattern. Unlocking the potential of groundwater for irrigation in the Fergana Valley can also contribute toward managing soil salinity and improving the health and resilience of water, land and ecosystems of water, land and ecosystems (WLE).

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“…Focusing on the restoration, conservation and management of ecosystems to deliver services can help stabilise food availability, access and use during periods of natural disaster, climate change, or political instability (IUCN, 2013b). Specific examples include protecting plant resources from pest and disease outbreaks (Macleod et al, 2016), addressing water and food security together (Hanjra & Qureshi, 2010), using forest landscape restoration approaches , and addressing land tenure issues.…”

Section: Nature Based Solutions To Specific Societal Challengesmentioning

confidence: 99%