Evaluation of crop production, trade, and consumption from the perspective of water resources: A case study of the Hetao irrigation district, China, for 1960–2010

Liu, Jing; Sun, Shikun; Wu, Pute; Wang, Yubao; Zhao, Xining

doi:10.1016/j.scitotenv.2014.10.088

Cited by 39 publications

(11 citation statements)

References 46 publications

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“…Regarding the historical approach, some papers have examined the main trends of the water footprint of the agricultural sector from a long term perspective [21][22][23]. For the particular case of Spain, evidence on the close link between the expansion of agricultural production, the growing pressures on water resources, the need for the construction of water infrastructure and the significant increase in the water footprint has been found in [21].…”

Section: Background and Literature Reviewmentioning

confidence: 99%

How Sustainable is the Increase in the Water Footprint of the Spanish Agricultural Sector? A Provincial Analysis between 1955 and 2005–2010

et al. 2015

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Abstract:In the context of a relatively scarce water country, the article analyzes the changes in 50 years in the water footprint (WF) in Spain evaluating its sustainability. For that purpose, firstly we make use of the regional information of the water footprints and crop production to estimate the WF of production over the 50 provinces in Spain, looking at the variation between the years 1955 and 2005-2010. The detail in the information of crops (more than 150 of them) statistics allows us to examine the types and origin of changes (in volume produced, shifts towards more or less water intensive crops). Secondly, we estimate sustainability indicators also at the provincial level, which let us evaluate whether this change has created or incremented the risk of physical and economic water stress. Thirdly, we introduce the economic perspective, providing evidence on the infrastructures built and public sector expenditure, as an approximation to the costs of the increases in WF, particularly meaningful for those water stressed areas. OPEN ACCESSSustainability 2015, 7 5095

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Section: Background and Literature Reviewmentioning

confidence: 99%

How Sustainable is the Increase in the Water Footprint of the Spanish Agricultural Sector? A Provincial Analysis between 1955 and 2005–2010

et al. 2015

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“…Therefore, adjusting the crop planting structure can change the water supply in the region (Fasakhodi et al, 2010), which in turn affects the water footprint of crop production. At the same time, changing the crop pattern and planting crops whose growth periods are consistent with the precipitation period can increase the utilization of green water, reduce the consumption of blue water and reduce the pressure on local water resources (Liu et al, 2018). This study found that in the HID, the growth period of sunflowers is basically the same as the precipitation period.…”

Section: Strategies For Adjusting the Crop Production Water Footprintmentioning

confidence: 69%

“…Sun et al (2013b) found that improving agricultural management measures is an important factor in increasing crop yield and reducing the water footprint of crop production. Liu et al (2014Liu et al ( , 2015 discussed the water use situation and virtual water flow in the Hetao irrigation district and found that crop yield had an important impact on the water footprint of crop production, and with the increasing of the crop yield per unit area, the water footprint of crop production had declined.…”

Section: Strategies For Adjusting the Crop Production Water Footprintmentioning

confidence: 99%

An improved method for calculating the regional crop water footprint based on a hydrological process analysis

Luan

Yin²,

et al. 2018

Hydrol. Earth Syst. Sci.

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Abstract. Fresh water is consumed during agricultural production. With the shortage of water resources, assessing the water use efficiency is crucial to effectively manage agricultural water resources. The water footprint is an improved index for water use evaluation, and it can reflect the quantity and types of water usage during crop growth. This study aims to establish a method for calculating the regional-scale water footprint of crop production based on hydrological processes, and the water footprint is quantified in terms of blue and green water. This method analyses the water-use process during the growth of crops, which includes irrigation, precipitation, groundwater, evapotranspiration, and drainage, and it ensures a more credible evaluation of water use. As illustrated by the case of the Hetao irrigation district (HID), China, the water footprint of wheat, corn and sunflowers were calculated using this method. The results show that canal water loss and evapotranspiration were responsible for most of the water consumption and accounted for 47.9 % and 41.8 % of the total consumption, respectively. The total water footprint of wheat, corn and sunflowers were 1380–2888, 942–1774 and 2095–4855 m3 t−1, respectively, and the blue footprint accounts for more than 86 %. The spatial distribution pattern of the green, blue and total water footprints for the three crops demonstrated that higher values occurred in the eastern part of the HID, which had more precipitation and was further away from the irrigation gate. This study offers a vital reference for improving the method used to calculate the crop water footprint.

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“…According to the overall water allocation plan of the Yellow River watershed, the quota of water diversion to Hetao Irrigation District has decreased from 5.18 × 10 9 m 3 to 4.00 × 10 9 m 3 . This ever-decreasing diversion will gravely affect the grain production in the irrigation district, making the conflict between supply and demand even more serious [23,24]. After the implementation of water-saving projects in the Hetao Irrigation District, the amount of water diversion for agricultural purposes has been cut notably.…”

Section: Introductionmentioning

confidence: 99%

Optimization of Spring Wheat Irrigation Schedule in Shallow Groundwater Area of Jiefangzha Region in Hetao Irrigation District

Peng

Zhang

Cai

et al. 2019

Water

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Due to the large spatial variation of groundwater depth, it is very difficult to determine suitable irrigation schedules for crops in shallow groundwater area. A zoning optimization method of irrigation schedule is proposed here, which can solve the problem of the connection between suitable irrigation schedules and different groundwater depths in shallow groundwater areas. The main results include: (1) Taking the annual mean groundwater depth 2.5 m as the dividing line, the shallow groundwater areas were categorized into two irrigation schedule zones. (2) On the principle of maximizing the yield, the optimized irrigation schedule for spring wheat in each zone was obtained. When the groundwater depth was greater than 2.5 m, two rounds of irrigation were chosen at the tillering-shooting stage and the shooting-heading stage with the irrigation quota at 300 mm. When the groundwater depth was less than 2.5 m, two rounds of irrigation were chosen at the tillering-shooting stage, and one round at the shooting-heading stage, with the irrigation quota at 240 mm. The main water-saving effect of the optimized irrigation schedule is that the yield, the soil water use rate, and the water use productivity increased, while the irrigation amount and the ineffective seepage decreased.

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Evaluation of crop production, trade, and consumption from the perspective of water resources: A case study of the Hetao irrigation district, China, for 1960–2010

Cited by 39 publications

References 46 publications

How Sustainable is the Increase in the Water Footprint of the Spanish Agricultural Sector? A Provincial Analysis between 1955 and 2005–2010

How Sustainable is the Increase in the Water Footprint of the Spanish Agricultural Sector? A Provincial Analysis between 1955 and 2005–2010

An improved method for calculating the regional crop water footprint based on a hydrological process analysis

Optimization of Spring Wheat Irrigation Schedule in Shallow Groundwater Area of Jiefangzha Region in Hetao Irrigation District

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