Allocation of water resources in the lower Yellow river based on ecological footprint

Zhang, Shuiling; Li, Hui; Li, Chunhui; Yi, Yujun; Wang, Xuan; Liu, Qiang

doi:10.3389/feart.2022.1018980

Cited by 6 publications

(5 citation statements)

References 29 publications

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“…3.5 (9) where κ 0 is the Karman constant of non-sediment flow, taken as 0.4; ω 0 is the average settling velocity of non-uniform sediment in clear water, cm/s; d 50 is the diameter of suspended sediment, mm.…”

Section: Sediment Transport Equationmentioning

confidence: 99%

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A Method for Calculating Water Demand for Sediment Transport Based on the Principles of River Dynamics

Hou,

Zhang,

et al. 2023

Water

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Sufficient water is pivotal in maintaining the stability of boundaries in sandy river systems. However the current methodologies employed for computing the water demand for sediment transport in rivers frequently neglect this component. This research utilizes data spanning 1960 to 2020 from seven principal hydrological stations located in the lower Yellow River to establish the correlation between key factors pertaining to the sediment transport capacity of flow. A closed equation system was established based on the principles of river dynamics to solve unknown hydraulic parameters. Finding a suitable hydraulic geometric relationship equation as a supplementary equation is a key step in constructing a closed equation system. The findings indicate that sediment transport water demands are 71.79, 133.24, 226.89, 286.12, and 313.6 × 108 m3, respectively, when sediment inflow is at 1, 2, 4, 6, and 8 × 108 t, with a bankfull discharge of 4000 m3/s. As the sediment inflow diminishes and the unit water demand for sediment transport increases, the sediment transport efficiency of the lower Yellow River reduces. The outcomes of this research can serve as a foundation for the joint operation of the Yellow River’s main and branch reservoirs, as well as for designing water resource allocation schemes within the basin.

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Section: Sediment Transport Equationmentioning

confidence: 99%

“…This approach places particular emphasis on ecological water and regional environmental flow [6,7]. The ecological water of a river refers to the volume of water necessary to sustain and protect specific ecological functions of a river without causing damage [8,9]. It is an important object of research on water resource management.…”

Section: Introductionmentioning

confidence: 99%

A Method for Calculating Water Demand for Sediment Transport Based on the Principles of River Dynamics

Hou,

Zhang,

et al. 2023

Water

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“…Water resource allocation involves the distribution of the limited water resources available in a particular region or river basin to solve the water usage conflicts that arise between different regions, generations, and users [17,18]. This process takes into account the social, economic, and ecological objectives of the river basin or region in an integrated manner [19]. The research history of water resource allocation is closely linked to the development of human society, economy, and scientific and technological advancements.…”

Section: Introductionmentioning

confidence: 99%

Joint Optimization of Urban Water Quantity and Quality Allocation in the Plain River Network Area

Zhao,

Fang,

Wang

et al. 2024

Sustainability

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Cities located in the plain river network area possess abundant water resources. However, due to urbanization and industrialization, there is a severe water shortage problem caused by poor water quality. To overcome this issue, a multi-objective optimal allocation model of water quantity and quality is proposed. The model considers regional water resources, economic, social, and environmental requirements and uses the NSGA-II genetic algorithm for model solution. Furthermore, to evaluate and analyze the degree of spatial equilibrium of regional water resources and how it relates to economic factors, the study uses the spatial equilibrium theory of water resources and the Gini coefficient of water resources. Jingjiang, a city in Jiangsu Province characterized by a typical plain river network area, was selected as the study area. The results of the optimal allocation of water resources in Jingjiang City show that: (1) total water consumption and chemical oxygen demand (COD) emissions for the current planning period are within their respective limits. In addition, the implementation of the water conservation program has resulted in a 5% reduction in total water shortages and a reduction of COD emissions by 1276 tons, (2) the structure of the water supply in Jingjiang City has been optimized; more than 90% of Ⅳ~V surface water is used for agriculture, and the domestic water supply is mainly from transit water, which effectively ensures that high-quality water is used in the domestic water supply, (3) the spatial equilibrium coefficient of water resources per sub-area is between 0.33 and 0.74, indicating an unbalanced or almost unbalanced level. The application of a water conservation program has resulted in the improvement of the spatial equilibrium level of water resources in each sub-area, with an overall spatial equilibrium of 0.64, indicating a more balanced level; the degree of matching of water resources with population, GDP, and land area is at the matching level, (4) according to the Gini coefficient of the distribution of water resources, the plains river network area displays a better match between water resources and economic and social factors of each water receiving area, thanks to its unique geographical location and natural conditions. This study can serve as a decision-making reference for addressing the urban water quality water shortage problem in the plain river network area.

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“…Unconventional models: Fan [14], Leng [15], Zhu [16], Wang [17], Wu [18], Zhang [19], Xiong [20], Tao [21], etc., based on the analysis of water ecological footprint, have given the qualitative analysis of sustainability and have not yet formed a comprehensive evaluation model.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Regional Water Ecological Economic System Sustainability Based on Emergy Water Ecological Footprint Theory—Taking the Yellow River Basin as an Example

Wu,

Chen,

2023

Water

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In the article, on the basis of quantifying the emergy water ecological footprint, a sustainability evaluation system for the overall water ecological economic system of the basin and each province (region) was proposed. And using the subjective and objective combination of the Analytic Hierarchy Process (AHP) and Entropy Weight Method (EWM) to determine the weight of the indicator system, a TOPSIS model for sustainability evaluation was constructed. And taking the Yellow River Basin as an example, the results indicate that (1) Throughout the entire basin, the sustainability of the water ecological economic system showed a fluctuating upward trend year by year during the study period, from 0.37 to 0.51. (2) In each province (region), the sustainability of the water ecological economic system had gathered in space. The overall sustainability level of the upstream Sichuan, Qinghai and Gansu provinces is high, always at level (I). The overall sustainability level of the midstream Ningxia and Neimenggu was low, always at level (IV). The overall sustainability level of the downstream Shaanxi, Shanxi, Henan and Shandong provinces is high, rising gradually over time, from level (III) to level (II) or (I). Against the backdrop of the rapid development of the economy and society, the contradiction between economic and social development, ecological environment protection, and sustainable utilization of water resources is becoming increasingly severe, which has become a key factor restricting the sustainable development of the ecological economic system in Yellow River Basin. Multidimensional comprehensive evaluation of the sustainability level of the regional water ecological economic system is a prerequisite for identifying sustainable development issues in the Yellow River Basin, and also the basis for formulating targeted policies for sustainable utilization of regional water resources and high-quality economic development.

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Allocation of water resources in the lower Yellow river based on ecological footprint

Cited by 6 publications

References 29 publications

A Method for Calculating Water Demand for Sediment Transport Based on the Principles of River Dynamics

A Method for Calculating Water Demand for Sediment Transport Based on the Principles of River Dynamics

Joint Optimization of Urban Water Quantity and Quality Allocation in the Plain River Network Area

Evaluation of Regional Water Ecological Economic System Sustainability Based on Emergy Water Ecological Footprint Theory—Taking the Yellow River Basin as an Example

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