Exploring optimal joint operating rules for large-scale inter-basin water transfer projects with multiple water sources, diversion routes, and water demand areas

Zhong, Huayu; Liao, Tao; Fang, Guohua; Kang, Ren Ke; Zhang, Shiwei

doi:10.1016/j.ejrh.2023.101504

Cited by 2 publications

(2 citation statements)

References 36 publications

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“…The excessive water use in crop production system increased pressure on water-resources throughout the region and excessive chemical fertilizer application deteriorated water quality [25]. Approximately 15% of food production in China could reduce due to water shortage caused by continuous groundwater decline [26]. These concerns of groundwater depletion and N contamination have existed for a long time.…”

Section: Overview Of North China Plain (Ncp)mentioning

confidence: 99%

Groundwater Depletion and Degradation in the North China Plain: Challenges and Mitigation Options

Du,

Laghari,

Wei

et al. 2024

Water

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Groundwater is an important natural resource in the North China Plain (NCP) with high economic benefits and social significance. It fulfills 60% of drinking and 70% of irrigation water requirements. In this review, the information is retrieved from high-quality articles published in MEDLINE and other sources. We saw that groundwater is declining faster (>1 m yr−1) and polluting with NO3− (>30 mg L−1) due to excessive water pumping and application of a nitrogen (N) fertilizer, respectively. The water pumping (>600 mm ha−1 yr−1) for agricultural purposes in the region is higher than the recharge amount (<200 mm yr−1). The low recharge is the result of low rainfall (<600 mm yr−1), and high evapotranspiration (>800 mm yr−1) under the impact of dominant vegetative characteristics of winter wheat–summer maize (WW-SM) rotations, covering >80% of the land. Furthermore, N application exceeds the crop assimilation capacity (>250 kg ha−1 yr−1) and leach deep down (>50 kg ha−1) as well as loss in the atmosphere. Presently, Beijing, Tianjin, and Hebei are ecologically the most affected areas. We suggest that excessive water and N fertilizer use for intensive cropping systems should be controlled by paying high attention to groundwater-friendly farming practices. In addition, artificial groundwater recharge options and their safe utilization would be explored across the region to replenish aquifers. This literature review contributes valuable insights to the knowledge bank and offers a foundation for further research and policy development.

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Section: Overview Of North China Plain (Ncp)mentioning

confidence: 99%

Groundwater Depletion and Degradation in the North China Plain: Challenges and Mitigation Options

Du,

Laghari,

Wei

et al. 2024

Water

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“…The SNWDP spans across Central and Northern China, where the industrial structure, economic conditions, intensity of human activities, and meteorological conditions exhibit significant spatial variations over different regions [34][35][36][37][38]. Furthermore, influenced by the resource management policies of various regions, the water usage patterns and resource management models vary with regional differences [39][40][41]. Additionally, due to the variations in water resource depletion and carrying capacity in each region [42,43], the SNWDP has differing effects on water resource restoration in various areas [44,45].…”

Section: Introductionmentioning

confidence: 99%

The Divergent Changes in Surface Water Area after the South-to-North Water Diversion Project in China

Guo,

Li,

Xiao

et al. 2024

Remote Sensing

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Water scarcity is a significant challenge in China, and the South-to-North Water Diversion Project (SNWDP) aims to address the water deficit in the northern region. This study analyses Landsat 5/7/8 remote sensing imagery from 2001 to 2020 on the Google Earth Engine (GEE) cloud platform to assess the impact of the SNWDP on surface water bodies in water-receiving areas. Moreover, by integrating MODIS evapotranspiration data and ERA5 meteorological reanalysis data, this study comprehensively assesses the SNWDP’s contribution to varied surface water body changes. Using an improved multi-temporal water frequency method, this study extracts max, seasonal, and year-long water surface areas. The results reveal that Beijing and Henan provinces have experienced significant increases in water surface areas post-SNWDP, with their max water surface area growing at a rate of 10.42 km2/yr and 33.49 km2/year, respectively. However, water surface areas in several provinces, especially those along the east route, were not observed to increase. The spatially detailed Mann–Kendall test indicates that the expansion of year-long water bodies is mostly concentrated near the central route project, revealing spatial heterogeneity in the water replenishment effect. Cropland and impervious surfaces are the main contributors to transfers in and out of water bodies. Meteorological and water use factors for spatial variations in water changes are also identified. These findings provide insights into the varied hydrological consequences of the SNWDP and contribute to the evaluation and management of similar large-scale water diversion projects around the world.

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Exploring optimal joint operating rules for large-scale inter-basin water transfer projects with multiple water sources, diversion routes, and water demand areas

Cited by 2 publications

References 36 publications

Groundwater Depletion and Degradation in the North China Plain: Challenges and Mitigation Options

Groundwater Depletion and Degradation in the North China Plain: Challenges and Mitigation Options

The Divergent Changes in Surface Water Area after the South-to-North Water Diversion Project in China

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