An Assessment of the Water Resources Carrying Capacity in Xinjiang

Han, Yan; Jia, Shaofeng

doi:10.3390/w14091510

Cited by 14 publications

(6 citation statements)

References 23 publications

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“…The scenarios of IE growth equal to −0.64 potentially pull down the average slope in panels of Figure 6, but it is not difficult to find that the SDI age still declines in some basins (especially in southern Xinjiang) when the growth rate of IE is equal to positive. According to the general knowledge, advanced water‐saving irrigation technologies such as sprinkling irrigation, drip irrigation, and plastic film mulching could promote IE and shrink agricultural WD (Hai et al., 2020; Han & Jia, 2022; Han et al., 2019). In fact, agricultural WD is likely to increase rather than decrease with increasing IE, which is known as the irrigation efficiency paradox (Grafton et al., 2018).…”

Section: Discussionmentioning

confidence: 99%

“…Ensuring these ecosystems have sufficient ecological water is crucial for maintaining essential material cycles and energy flow, as well as supporting biodiversity. Since there are still gaps in agricultural and ecological water use in various sub-Earth's Future 10.1029/2023EF004058 basins of Xinjiang, implementing inter-basin water transfer from external regions is also a powerful measure to alleviate water supply-demand imbalances (Han & Jia, 2022). For example, the well-known "Diversion from Irtysh to Urumqi" project diverts abundant water resources from the Irtysh River Basin to Urumqi on the northern slope of the Tianshan Mountains, alleviating water scarcity of urban cluster in the Tianshan northern slope (Yue et al, 2023).…”

Section: Sdgs Progress Score and Policy Suggestionsmentioning

confidence: 99%

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A Refined Supply‐Demand Framework to Quantify Variability in Ecosystem Services Related to Surface Water in Support of Sustainable Development Goals

Li,

Xin,

et al. 2024

Earth's Future

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As water‐related ecosystem services (WRES) encounter unprecedented threats with climate change and human activities, it is important to understand the impact of variations in the supply and demand for WRES on Sustainable Development Goals (SDGs). Previous studies commonly overlooked water quality and water‐use sectors when using comprehensive supply‐demand index (SDIcom), defined as the difference between water supply and demand, leading to challenges in applying WRES estimation to SDGs assessment. We constructed a refined supply‐demand framework for WRES, categorizing the water supply by water quality and the water demand by sectors. It allows the calculation of refined supply‐demand index (SDIref), addressing the limitations of SDIcom. Our findings demonstrate that SDIref could be effectively employed to assess SDGs and rectify the overestimation of SDIcom in the case study in Xinjiang. The supply‐demand relationship of water resources indicates surpluses in domestic and industrial water use and deficits in agricultural and ecological water use, with the latter worsening. SDIref is projected to be higher in the scenario with SSP2‐4.5 and high growth rate of irrigation efficiency. Our study suggested informed decisions based on SDG‐specific targets to either maintain or enhance SDG progress scores. The proposed refined supply‐demand framework of WRES established a quantitative link between WRES and human well‐being, providing applicable insights for other ecosystem service assessments in other regions.

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Section: Discussionmentioning

confidence: 99%

Section: Sdgs Progress Score and Policy Suggestionsmentioning

confidence: 99%

A Refined Supply‐Demand Framework to Quantify Variability in Ecosystem Services Related to Surface Water in Support of Sustainable Development Goals

Li,

Xin,

et al. 2024

Earth's Future

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“…In general, the water extraction and use flux for the whole region showed a year-on-year rising trend from 2007 to 2017, including the largest extraction and use of water in 2012, which were 590.14 Â 10 8 m 3 (Figure 4b). The scale of water resources development and utilization and the social water cycle flux has been expanding, and the Xinjiang has entered a serious over-exploitation state for a long time as a whole (Han, 2022).…”

Section: 'Nature-artificiality' Binary Water Cyclementioning

confidence: 99%

The ternary water cycle of ‘nature–society–trade’ in the inland arid areas

Ma,

Xie,

et al. 2024

Hydrological Processes

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Water cycle is important for maintaining the dynamic balance of regional water resources. Here, based on the input–output water circulation flux accounting model, we take Xinjiang as a case area to empirically explore the mechanism of the ‘nature‐society‐trade’ ternary water cycle. The results show that the water transferred out was much larger than the transferred in in Xinjiang. The scale of water resources development and utilization and the social water cycle fluxes have been constantly expanding, but there was a mismatch between the hydrological system and the socio‐economic system in terms of water resource utilization. From 2007 to 2017, agriculture had always been the department with the largest amount of direct water consumption and virtual water transfer in Xinjiang, which mainly transferred virtual water to the light industry and service sector where the production of final products requires large amounts of agricultural products as raw materials or intermediate products. In Xinjiang, the virtual water transferred outside through trade in products and services was much larger than the virtual water transferred in from other regions, and it was thus always in a state of net virtual water outflow as a whole. In inter‐provincial trade of China, Xinjiang mainly transferred virtual water to areas with abundant water resources, developed economies and dense populations in eastern China. Lastly, we put forward targeted suggestions on the optimal allocation of water resources to promote the sustainable development of Xinjiang and we hope that our study will be instructive for water resources management in other arid inland river basins.

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“…On the other hand, the judicious application of supplemental nitrogen fertilizers can mitigate certain adverse effects on growth resulting from water deficit conditions [ 6 ]. The integrated management of water and nitrogen by capitalizing on the synergistic interaction of water and nitrogen can maximize yield and minimize the use of water resources, which is particularly important in Xinjiang [ 7 , 8 ]. With continuous and swift economic and social development, the issue at hand has emerged as a crucial factor constraining the renewed expansion of peanut production in Xinjiang.…”

Section: Introductionmentioning

confidence: 99%

Irrigation and Fertilization Scheduling for Peanut Cultivation under Mulched Drip Irrigation in a Desert–Oasis Area

Dong,

Shen,

et al. 2024

Plants

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The aim of this study was to investigate the impact of water and nitrogen regulation on the characteristics of water and fertilizer demands and the yield, quality, and efficiencies of the water and nitrogen utilization of peanuts cultivated under mulched drip irrigation in a desert–oasis region. The experiment, conducted in Urumqi, Xinjiang, centered on elucidating the response mechanisms governing peanut growth, yield, quality, water consumption patterns, and fertilizer characteristics during the reproductive period under the influence of water and nitrogen regulation. In the field experiments, three irrigation levels were implemented, denoted as W1 (irrigation water quota of 22.5 mm), W2 (irrigation water quota of 30 mm), and W3 (irrigation water quota of 37.5 mm). Additionally, two nitrogen application levels, labeled N1 (nitrogen application rate of 77.5 kg·ha−1) and N2 (a nitrogen application rate of 110 kg·ha−1), were applied, resulting in seven treatments. A control treatment (CK), which involved no nitrogen application, was also included in the experimental design. The results indicate a direct correlation between the increment in the irrigation quota and increases in farmland water-related parameters, including water consumption, daily water consumption intensity, and water consumption percentage. The nitrogen harvest index (NHI) demonstrated a higher value in the absence of nitrogen application compared to the treatment with elevated nitrogen levels. The application of nitrogen resulted in an elevation in both nitrogen accumulation and nitrogen absorption efficiency within pods and plants. When subjected to identical nitrogen application conditions, irrigation proved to be advantageous in enhancing water-use efficiency (WUE), nitrogen partial factor productivity (NPFP), and the yield of peanut pods. The contribution rate of water to pod yield and WUE exceeded that of nitrogen, while the contribution rate of nitrogen to nitrogen-use efficiency (NUE) was higher. The total water consumption for achieving a high yield and enhanced water- and nitrogen-use efficiencies in peanuts cultivated under drip irrigation with film mulching was approximately 402.57 mm. Taking into account yield, quality, and water- and nitrogen-used efficiencies, the use of an irrigation quota of 37.5 mm, an irrigation cycle of 10–15 days, and a nitrogen application rate of 110 kg·ha−1 can be regarded as an appropriate water and nitrogen management approach for peanut cultivation under mulched drip irrigation in Xinjiang.

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An Assessment of the Water Resources Carrying Capacity in Xinjiang

Cited by 14 publications

References 23 publications

A Refined Supply‐Demand Framework to Quantify Variability in Ecosystem Services Related to Surface Water in Support of Sustainable Development Goals

A Refined Supply‐Demand Framework to Quantify Variability in Ecosystem Services Related to Surface Water in Support of Sustainable Development Goals

The ternary water cycle of ‘nature–society–trade’ in the inland arid areas

Irrigation and Fertilization Scheduling for Peanut Cultivation under Mulched Drip Irrigation in a Desert–Oasis Area

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