Establishing and testing a catchment water footprint framework to inform sustainable irrigation water use for an aquifer under stress

Roux, Betsie le; Laan, M. van der; Vahrmeijer, JT; Bristow, Keith L.; Annandale, J. G.

doi:10.1016/j.scitotenv.2017.04.170

Cited by 34 publications

(27 citation statements)

References 17 publications

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“…We therefore recommend that water use data, as calculated by the WFN method, be used in a site‐specific water balance, as illustrated by Le Roux et al . (); green WF calculations are complex to make and may require sophisticated modelling to estimate what the yield would be under rainfed conditions; WFs according to the hydrological‐based approach are calculated over a year. To determine WFs for short‐season vegetable crops, for example, crop sequences need to be used for a year.…”

Section: Resultsmentioning

confidence: 99%

“…A carefully calculated water balance is important to understand the sustainability of a water use, but the issue on including or excluding runoff illustrates how difficult it is to standardize a water balance calculation. We therefore recommend that water use data, as calculated by the WFN method, be used in a site-specific water balance, as illustrated by Le Roux et al (2017); • green WF calculations are complex to make and may require sophisticated modelling to estimate what the yield would be under rainfed conditions; • WFs according to the hydrological-based approach are calculated over a year. To determine WFs for shortseason vegetable crops, for example, crop sequences need to be used for a year.…”

Section: Analysis In Terms Of the Fundamental Viewpointmentioning

confidence: 99%

“…K5/2273//4: Water footprint of selected vegetable and fruit crops produced in South Africa), now published as WRC Report No. TT 722/17 (see Van der Laan, 2017). The first author, Betsie le Roux, received financial support for research from the WRC and a bursary from the National Research Foundation (NRF) of South Africa (NRF Grant number: 88572).…”

Section: Acknowledgmentsmentioning

confidence: 99%

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Comparing the usefulness and applicability of different water footprint methodologies for sustainable water management in agriculture

Roux

Laan

Gush³

et al. 2018

Irrigation and Drainage

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The lack of sustainability of our water resources threatens food security in many places worldwide. Different water footprint (WF) methodologies were investigated for their ability to improve water management at various scales. Methodologies according to the Water Footprint Network (WFN), life cycle assessment (LCA) and hydrological‐based approaches were assessed, and a working example is given for apples produced in South Africa. A fundamental viewpoint was defined and the knowledge hierarchy applied to investigate the approaches and information generated. WFs reported simply as a volume of water used per mass of crop produced cannot indicate the sustainability of the water use unless interpreted within the local hydrological and environmental context. The WFN methodology appears most useful to resource managers due to its quantitative nature and ability to compare blue and green water consumption versus water availability. The LCA approach may be best for comparisons of the impact of different products. None of the methodologies provides a single metric that can be used to inform wise consumer choices as it is not possible to incorporate all the complexities associated with water use into a single number that can be used to inform sustainable water use. © 2018 John Wiley & Sons, Ltd.

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Section: Resultsmentioning

confidence: 99%

Section: Analysis In Terms Of the Fundamental Viewpointmentioning

confidence: 99%

Section: Acknowledgmentsmentioning

confidence: 99%

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Comparing the usefulness and applicability of different water footprint methodologies for sustainable water management in agriculture

Roux

Laan

Gush³

et al. 2018

Irrigation and Drainage

Self Cite

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“…However, water scarcity has gradually evolved into a global systemic crisis [2,3]. That poses a great challenge to global food production security [4]. Due to population growth, increasing food production demand will aggravate the crisis of water scarcity [5].…”

Section: Introductionmentioning

confidence: 99%

Agricultural Water Use Sustainability Assessment in the Tarim River Basin under Climatic Risks

Zhang

Bai

Zhou

et al. 2018

Water

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Abstract:Proper agricultural water management in arid regions is the key to tackling climatic risks. However, an effective assessment of the current response to climate change in agricultural water use is the precondition for a group adaptation strategy. The paper, taking the Tarim River basin (TRB) as an example, aims to examine the agricultural water use sustainability of water resource increase caused by climatic variability. In order to describe the response result, groundwater change has been estimated based on the Gravity Recovery and Climate Experiment (GRACE) and the Global Land Data Assimilation System (GLDAS)-Noah land surface model (NOAH) data. In order to better understand the relationship between water resource increase and agricultural water consumption, an agricultural water stress index has been established. Agricultural water stress has been in a severe state during the whole period, although it alleviated somewhat in the mid-late period. This paper illustrates that an increase in water supply could not satisfy agricultural production expansion. Thus, seasonal groundwater loss and a regional water shortage occurred. Particularly in 2008 and 2009, the sharp shortage of water supply in the Tarim River basin directly led to a serious groundwater drop by nearly 20 mm from the end of 2009 to early 2010. At the same time, a regional water shortage led to water scarcity for the whole basin, because the water consumption, which was mainly distributed around Source Rivers, resulted in break-off discharge in the mainstream. Therefore, current agricultural development in the Tarim River basin is unsustainable in the context of water supply under climatic risks. Under the control of irrigation, spatial and temporal water allocation optimization is the key to the sustainable management of the basin.

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“…The availability of water resources is vital for economic and social development [1]. However, with the growth in national economies and the global economy, water scarcity has become a problem in many regions of the world, which has resulted in severe and sometimes violent water conflicts between human needs and ecosystem survival, and as a result has presented great challenges for water resource sustainability [2][3][4].…”

Section: Introductionmentioning

confidence: 99%

Quantitative Measurement of the Sustainable Water Resource Development System in China Inspired by Dissipative Structure Theory

et al. 2018

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In an attempt to ensure sustainable water resource development, this paper constructs a comprehensive scientific index evaluation system focused on the macro socio-economic-ecological environment. Inspired by the theory of dissipative structure, the sustainable development system of water resources is regarded as a complex and huge dissipative system. In order to effectively measure the coordinated development status and orderly evolution trend of the system, this paper uses the information entropy method to construct the measurement model of the water resources system and analyze its internal entropy flow changes. The empirical analysis of the water resources in China from 2007 to 2016 found that coordinated water resource subsystem development could achieve sustainable development, and that over the examined period, the sustainable water resource development system in China became more orderly and coordinated; therefore, the sustainable development aim is gradually being achieved.2 of 16 regional, and national economies and have put future development in jeopardy. Therefore, sustainably developing water resources has become increasingly important.However, to accurately develop sustainable water resource development systems, it is necessary to evaluate the sustainability of existing practices and initiatives, explore the impact mechanisms and evolving trends in sustainable water resource development systems, and conduct associated assessments and projections to ensure coordinated development [6]. Therefore, the purpose of this paper is to develop a model that is able to accurately evaluate and measure the coordinated development level and the evolutionary trends for sustainable water resources. These developments assist in understanding the current state of the water evolution system and provide recommendations for future sustainable development.The remainder of this article is organized as follows. In Section 2, a comprehensive literature review on sustainable water resource development is given. In Section 3, an indicator system for sustainable water resource development is constructed, and in Section 4, the research methods, applicability, and specific steps are described. In Section 5, a case analysis is given to demonstrate the applicability of the indicator system, and in Section 6, a detailed results analysis is given. The conclusion and future prospects are given in Section 7.

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Establishing and testing a catchment water footprint framework to inform sustainable irrigation water use for an aquifer under stress

Cited by 34 publications

References 17 publications

Comparing the usefulness and applicability of different water footprint methodologies for sustainable water management in agriculture

Comparing the usefulness and applicability of different water footprint methodologies for sustainable water management in agriculture

Agricultural Water Use Sustainability Assessment in the Tarim River Basin under Climatic Risks

Quantitative Measurement of the Sustainable Water Resource Development System in China Inspired by Dissipative Structure Theory

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