Spatiotemporal evolution of crop grey water footprint and associated water pollution levels in arid regions of western China

Zhao, Danyue; Liu, Wenxin; Gao, Rong; Zhang, Ping; Li, Meng; Wu, Pute; Zhuo, La

doi:10.1016/j.agwat.2023.108224

Cited by 9 publications

(2 citation statements)

References 20 publications

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“…The gray water footprint is an indicator that covers both the environmental and water resources aspects of production. Given the importance of pollution management in agriculture, the footprint of graywater has been investigated in various studies [40,41]. In the agricultural sector, chemical fertilizers are primary sources of water pollution.…”

Section: • Gray Water Footprintmentioning

confidence: 99%

A Framework for Assessing Food Baskets Based on Water and Carbon Footprints

Mohammadi,

Javadi,

Yousefi

et al. 2024

Water

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The composition of food baskets can significantly influence the water consumption rate and society’s environmental impact. This study evaluates the sustainability of Iran’s food and nutrition security by evaluating five food baskets using water and carbon-footprint indices. These food baskets are the common Iranian food basket (CIFB), the vegetarian food basket (VFB), the Ministry of Health desired food basket (MHDFB), the Swiss Society for Nutrition food basket (SSNFB), and the Mediterranean food basket (MFB). This study also examines the role of Iran’s agricultural sector under the Paris Climate Change Agreement (COP21). The TOPSIS multi-criteria decision-making method was used to identify the most desirable food basket. The results of this study show that the VFB could be the most desirable alternative to the CIFB. Replacing the CIFB with the VFB causes a 10% and 21% lower water and carbon footprint, respectively. From a 30-year perspective (around 2050), choosing the VFB would reduce the blue water footprint by 19.7 BCM and the gray water footprint by 3.6 BCM compared to the CIFB. According to the provisions of COP21 regarding Iran’s voluntary program to reduce greenhouse gas emissions, the agricultural sector will be one of the sources of greenhouse gas emissions that will face an upward trend. Hence, to adhere to this voluntary commitment, these emissions should be reduced by changing the CIFB to the VFB or reducing emissions in other sectors, such as industry. Choosing the VFB can reduce 10.7 million tons of CO2 emissions, which can be a significant step for the agricultural sector in Iran in reducing greenhouse gas emissions. Overall, considering the characteristics of farm products (water and carbon footprints) in Iran, a country located in a semi-arid climate, the VFB is recommended.

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Section: • Gray Water Footprintmentioning

confidence: 99%

A Framework for Assessing Food Baskets Based on Water and Carbon Footprints

Mohammadi,

Javadi,

Yousefi

et al. 2024

Water

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“…Arid areas account for approximately 40 percent of the global land surface area and more than half of the world's potential crop production area [9,10]. Water scarcity is a key constraint on effective arable land use and agricultural production in this region.…”

Section: Introductionmentioning

confidence: 99%

Effects of Different Mulch Types on Farmland Soil Moisture in an Artificial Oasis Area

Ye,

Xu,

Zhu

et al. 2023

Land

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Different types of mulch are often used in agricultural production to enhance soil moisture and improve crop yields. The question of which mulch provides superior water retention in arid regions, where water resources are scarce, is a major concern for agricultural production. We conducted observations and studies at a typical irrigated experimental station in an arid zone with four types of mulch, including liquid mulch (LM), biodegradable mulch (BM), ordinary black mulch (OBM), and ordinary white mulch (OWM), and plots with no mulch. Samples were collected and analyzed at 1, 3, 5, and 7 days after each rainfall or irrigation to obtain soil moisture changes and to analyze the effect of different mulches on soil moisture retention. The results showed that mulch cover was effective in retaining soil moisture compared to plots without mulch cover. Specifically, soil moisture was highest in the farmland with OWM during the observation period. OWM, OBM, and BM were all effective in reducing soil water evaporation and maintaining soil moisture. LM and BM were capable of utilizing rainfall to recharge soil water in a superior way, and polyethylene mulches (OBM and OWM) had a significant barrier impact on rainfall.

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The effects of agricultural product exports on agricultural environmental pollution: evidence from OECD countries and China

Liu,

Cai,

et al. 2023

Econ Change Restruct

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Spatiotemporal evolution of crop grey water footprint and associated water pollution levels in arid regions of western China

Cited by 9 publications

References 20 publications

A Framework for Assessing Food Baskets Based on Water and Carbon Footprints

A Framework for Assessing Food Baskets Based on Water and Carbon Footprints

Effects of Different Mulch Types on Farmland Soil Moisture in an Artificial Oasis Area

The effects of agricultural product exports on agricultural environmental pollution: evidence from OECD countries and China

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