Water saving practices enhance regional efficiency of water consumption and water productivity in an arid agricultural area with shallow groundwater

Xue, Jingyuan; Guan, Huade; Huo, Zailin; Wang, Fengxin; Huang, Guanhua; Boll, Jan

doi:10.1016/j.agwat.2017.09.003

Cited by 65 publications

(23 citation statements)

References 47 publications

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“…The goal of improving WUEA is increasing food production and income, improving the financial gains, and guaranteeing the supply of ecosystem services at a lower social and environmental cost per water unit used [13,15]. An increase in WUEA might result in better nutrition for families, higher income, and more productive employment, especially in regions with arid and semi-arid climates.…”

Section: Introductionmentioning

confidence: 99%

Advances in Water Use Efficiency in Agriculture: A Bibliometric Analysis

Velasco-Muñoz

Aznar-Sánchez

Ureña

et al. 2018

Water

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Water use efficiency in agriculture (WUEA) has become a priority given increasing limitations on hydric resources. As a result, this area of research has increased in importance, becoming one of the most prolific lines of study. The main aim of this study was to present a review of worldwide WUEA research over the last 30 years. A bibliometric analysis was developed based on the Scopus database. The sample included 6063 articles. The variables analyzed were: articles per year, category, journal, country, institution, author, and keyword. The results indicate that a remarkable growth in the number of articles published per year is occurring. The main category is environmental science and the main journal Agricultural Water Management. The countries with the highest number of articles were China, the United States of America, and India. The institution that published the most articles was the Chinese Academy of Sciences and the authors from China also were the most productive. The most frequently used keywords were irrigation, crop yield, water supply, and crops. The findings of this study can assist researchers in this field by providing an overview of worldwide research.

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Section: Introductionmentioning

confidence: 99%

Advances in Water Use Efficiency in Agriculture: A Bibliometric Analysis

Velasco-Muñoz

Aznar-Sánchez

Ureña

et al. 2018

Water

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“…Water use efficiency in agriculture generally implies a reduction in water use to meet a specific production objective or to increase the production of a specific water supply [99]. The aim of improving water use efficiency is to increase food production, boost financial gains, and guarantee the supply of ecosystem services at lower social and environmental costs per unit of water used [100,101]. The practices used to achieve this objective include rainwater harvesting, complementary irrigation, deficit irrigation, and the use of precision irrigation techniques and practices to conserve groundwater [24,102].…”

Section: Water Use Efficiencymentioning

confidence: 99%

Sustainable Irrigation in Agriculture: An Analysis of Global Research

Velasco-Muñoz

Aznar-Sánchez

Batlles‐delaFuente

et al. 2019

Water

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Irrigated agriculture plays a fundamental role as a supplier of food and raw materials. However, it is also the world’s largest water user. In recent years, there has been an increase in the number of studies analyzing agricultural irrigation from the perspective of sustainability with a focus on its environmental, economic, and social impacts. This study seeks to analyze the dynamics of global research in sustainable irrigation in agriculture between 1999 and 2018, including the main agents promoting it and the topics that have received the most attention. To do this, a review and a bibliometric analysis were carried out on a sample of 713 articles. The results show that sustainability is a line of study that is becoming increasingly more prominent within research in irrigation. The study also reveals the existence of substantial differences and preferred topics in the research undertaken by different countries. The priority issues addressed in the research were climatic change, environmental impact, and natural resources conservation; unconventional water resources; irrigation technology and innovation; and water use efficiency. Finally, the findings indicate a series of areas related to sustainable irrigation in agriculture in which research should be promoted.

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“…The results show that water-saving of the main canal system can reduce the groundwater level by 0.28-0.48 m. When water-saving technologies are adopted for both main canals and agricultural canals, the predicted groundwater level drop will be even greater, which may bring the groundwater evaporation to be reduced by 128 mm [28]. Studies by Hollanders et al and Xu et al suggest that the application of water-saving technologies and improvement of drainage systems can effectively reduce groundwater level and groundwater evaporation, thus better controlling waterlogging and salinization [29,30]; Xue et al believed that water-saving irrigation in the Jiefangzha Irrigation Area in the Hetao Irrigation district of Inner Mongolia can improve regional water consumption and water productivity, while groundwater is an important source for water evaporation of shallow aquifers, accounting for more than 16% of the evapotranspiration in the irrigation area [31]. Water-related activities, such as regional-scale agricultural water-saving transformation, have caused changes in the hydrologic cycle in many irrigation areas [6,32].…”

Section: Introductionmentioning

confidence: 99%

Evolution of Groundwater in Yinchuan Oasis at the Upper Reaches of the Yellow River after Water-Saving Transformation and Its Driving Factors

Tian

Si³

et al. 2020

IJERPH

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In recent years, the amount of water diverted from the Yellow River has been decreasing year by year, which is the biggest problem for the development and utilization of water resources in Yinchuan Oasis (YCO). Through the implementation of the Agricultural Water-saving Transformation Project (AWSTP), water resource shortage in the YCO has been alleviated greatly, and ecological degradation problems, such as soil salinization, have also been effectively addressed. However, how the shallow groundwater in YCO has changed after the AWSTP remains unclear. This paper, based on a lot of statistical data and measured data, and by using statistical and geostatistical methods, reveals the evolution of shallow groundwater in YCO in the past 18 years (2000–2017), since the implementation of the AWSTP and its driving factors, from two aspects: groundwater dynamics and groundwater quality. The results show that compared with the initial stage of AWSTP, the amount of water diverted from the Yellow River for the YCO reduced by 36%, and accordingly, the average groundwater depth in the irrigation period increased from 0.98 m to 2.01 m, representing an increase of 1.03 m, and an average annual increase of 6cm. Moreover, the depth increase in the irrigation period is higher than that in the non-irrigation period, and that in the Northern Irrigation Area (NIA) is higher than that in the Southern Irrigation Area (SIA). Furthermore, the groundwater storage is decreasing at a rate of 855.6 × 104 m3·a−1, and the cumulative storage has reduced by nearly 1.54 × 108 m3, indicating that it is in a long-term negative equilibrium. In terms of temporal and spatial distribution of total dissolved solids (TDS) in groundwater, the TDS in SIA and NIA decreased from 1.41 g·L−1 and 1.84 g·L−1 to 1.15 g·L−1 and 1.77 g·L−1, respectively. The saline water area with a TDS above 5 g·L−1 and the freshwater area with a TDS below 1 g·L−1 decreased by 16.6 km2 and 334.4 km2, respectively, while the brackish water area with a TDS of 1~3 g·L−1 increased by 492 km2. The spatial and temporal distribution heterogeneity of TDS in groundwater is reduced and is in a slight desalinized trend overall. However, the groundwater in some areas, such as the Xingqing District, Jinfeng District, Xixia District, Yongning County, Helan County and Huinong District of Yinchuan Oasis, is at risk of further salinization. Due to the agricultural water-saving caused by the reduction of water amount diverted from the Yellow River, the groundwater recharge in YCO was reduced by 36.3%, which, together with measures such as drainage, groundwater exploitation, and industrial restructuring, drives the groundwater circulation in the YCO to a new equilibrium. This study can help us to understand the influencing process and mechanism of agricultural water-saving on groundwater systems in YCO and provide reference for efficient use and optimal allocation and management of agricultural water resources.

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Water saving practices enhance regional efficiency of water consumption and water productivity in an arid agricultural area with shallow groundwater

Cited by 65 publications

References 47 publications

Advances in Water Use Efficiency in Agriculture: A Bibliometric Analysis

Advances in Water Use Efficiency in Agriculture: A Bibliometric Analysis

Sustainable Irrigation in Agriculture: An Analysis of Global Research

Evolution of Groundwater in Yinchuan Oasis at the Upper Reaches of the Yellow River after Water-Saving Transformation and Its Driving Factors

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