An Evaluation of Irrigation Water Use Efficiency in Crop Production Using a Data Envelopment Analysis Approach: A Case of Louisiana, USA

Gautam, Tej K.; Paudel, Krishna P.; Guidry, Kurt M.

doi:10.3390/w12113193

Cited by 15 publications

(8 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Among all these methodologies, DEA tends to be superior in evaluating multi-input and multi-output decision-making units (DMUs) based on a mathematical programming method, without dimensionless processing of data, prior identification of functional relationships, or setting nonsubjective weights to each parameters (Wang et al, 2018a). DEA and its modified methodology gained extensive application worldwide, to comprehensively evaluate water use and assist decision-making (Hu et al, 2018;Gautam et al, 2020;Laureti et al, 2021). The national, provincial, and catchment research of WUE based on the methodology mentioned above reached broad consensus in China that the WUE is steadily improving, but still remains at a low level in general (Mu et al, 2016;Hai et al, 2018;Geng et al, 2019;Guo et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Water Resources Utilization Efficiency in Guangdong Province Based on the DEA–Malmquist Model

Cheng

Song

Xie

2022

Front. Environ. Sci.

View full text Add to dashboard Cite

In this study, we examined the temporal and spatial trends of water utilization efficiency in the highly developed Guangdong Province based on a data envelopment analysis (DEA) model and Malmquist index, trying to evaluate and predict the water utilization status in prefecture-level cities from the input–output perspective. The results showed that the water utilization efficiency in Guangdong Province in 2012–2018 was on a fluctuating upward trend, although the utilization efficiency had not reached the DEA efficiency; spatially, the water utilization efficiency in Guangdong Province was relatively high in the Pearl River Delta and the surrounding cities, but low in the Western Guangdong region; in the perspective of efficiency decomposition factors, technological change was the most pervasive driving force of the water utilization efficiency. Pearl River Delta and Northern Guangdong made progress in productivity due to the advantages of scale expansion benefit. Eastern Guangdong achieved improvement in all-over parameters and made the largest growth in water utilization efficiency, while Western Guangdong basically profited from organizational management during the study period; the prediction analysis revealed a continuous increase in the water utilization efficiency in Guangdong Province during 2019–2025 with an average annual growth rate of about 0.6%, benefiting mainly from the technological innovation and secondly from management renewal, while scale expansion benefit tended to decline. Furthermore, spatial heterogeneity exhibited a decreasing tendency in the future owing to the rapid water utilization efficiency increase in the Western and Eastern Guangdong. It is suggested that the technological innovation and the integrated management capability in water use should be paid more attention to enhance the water utilization efficiency in Guangdong Province. Achieving a balance between economic growth and water resource protection, and promoting the sustainable development of the nature-economy-society compound system is of the utmost priority in Guangdong.

show abstract

Section: Introductionmentioning

confidence: 99%

Evaluation of Water Resources Utilization Efficiency in Guangdong Province Based on the DEA–Malmquist Model

Cheng

Song

Xie

2022

Front. Environ. Sci.

View full text Add to dashboard Cite

show abstract

“…While other studies highlight the improvement in water-use efficiency achieved by installing DI (Ali et al 2020), they point to other factors that limit efficiency. For example, the training of farmers and technicians in the WUAs, the size of the farms or the proper management and organization of the irrigation procedures (Pereira and Marques 2017;Ali et al 2020;Cao et al 2020, Gautam et al 2020). These factors could also explain the differences in efficiency between WUAs with similar characteristics in this study.…”

Section: Resultsmentioning

confidence: 99%

Application of Data Envelopment Analysis to Evaluate Investments in the Modernization of Collective Management Irrigation Systems in Valencia (Spain)

García-Mollá

Puertas

Ibor

2021

Water Resour Manage

View full text Add to dashboard Cite

Climate change and increased competition for water resources are generating growing concern about how to improve water-use efficiency in agriculture. In turn, this has prompted substantial investments in the installation of water-saving technologies in irrigation systems. The first aim of this research is to use data envelopment analysis to quantify, in terms of gross water savings (GWS), the local-scale efficiency of the irrigation policies adopted in an area of Spain suffering from a structural water deficit. Second, the cross-efficiency method is used to produce a ranking of the irrigation organizations analysed, in order to identify patterns of water-use efficiency performance that can guide future lines of investment. The results reveal that water-use efficiency prior to modernization is a key determinant of the efficiency achieved in terms of GWS at local scale. However, the investments targeted at irrigation modernization often have objectives other than water savings. These and other aspects should be taken into account when allocating public funds to irrigation modernization.

show abstract

“…The DEA model is widely used for measuring WUE due to its ability to evaluate efficiency without assuming a specific form of production function or specifying weights on inputs and outputs ahead of time (Hu et al, 2006; Shi et al, 2021). It has been employed worldwide to evaluate WUE in developed and developing countries, including the United States (Gamze et al, 2018; Gautam et al, 2020), Australia (Azad et al, 2014), Vietnam (Tran et al, 2021), and South Africa (Brettenny & Sharp, 2016).…”

Section: Methodology and Datamentioning

confidence: 99%

Spatial pattern and driving forces of regional water use efficiency: From spatial spillover and heterogeneity perspective

He,

Liu,

Gong

2023

J American Water Resour Assoc

View full text Add to dashboard Cite

Water use efficiency (WUE) is critical for conserving water resources and protecting the environment, yet the lack of quantitative analysis of its spatial spillover effects and the spatial heterogeneity of its influencing factors hinders improving and achieving the spatial equilibrium regulation of regional WUE. In the current study, a way is proposed to explore the spatial pattern and driving forces of regional WUE from spatial spillover and heterogeneity perspective, in which the Improved Super‐slack‐based Model is firstly applied to estimate the WUE, and then, the spatial Markov chain and the geographically and temporally weighted regression model were, respectively, used to explore the spatial spillover effects of WUE and reveal the spatial heterogeneity of the driving forces behind the WUE. Guangdong Province, a region with rapidly developing economy and significant uneven development in China, was chosen as a case study. Results show that there is a radial pattern of high WUE in the Pearl River Delta and there are significant spatial spillover effects among cities, the city with higher WUE exerted positive effects on its neighboring city's WUE. The key driving factors of WUE include per capita GDP, per capita water consumption, proportion of secondary and tertiary industry water use, foreign direct investment, and R&D input, with spatial heterogeneity in their influences. Policies such as enhancing public awareness of water saving, increasing the reuse of wastewater in industrial parks, and promoting the inter‐municipal socioeconomic and technological exchanges are recommended to achieve a more coordinated and balanced regional WUE. The results of this study have scientific and practical implications for coordinating regional water resources exploitation and sustainable development.

show abstract

An Evaluation of Irrigation Water Use Efficiency in Crop Production Using a Data Envelopment Analysis Approach: A Case of Louisiana, USA

Cited by 15 publications

References 26 publications

Evaluation of Water Resources Utilization Efficiency in Guangdong Province Based on the DEA–Malmquist Model

Evaluation of Water Resources Utilization Efficiency in Guangdong Province Based on the DEA–Malmquist Model

Application of Data Envelopment Analysis to Evaluate Investments in the Modernization of Collective Management Irrigation Systems in Valencia (Spain)

Spatial pattern and driving forces of regional water use efficiency: From spatial spillover and heterogeneity perspective

Contact Info

Product

Resources

About