Study on Production, Domestic and Ecological Benefits of Reservoir Water Supply Based on Emergy Analysis

Guan, Xin; Jiang, Pengkun; Yu, Mengxi; Qin, Haidong; Lv, Hong

doi:10.3390/pr8111435

Cited by 13 publications

(5 citation statements)

References 23 publications

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“…Finally, more diverse influencing factors can be verified in the context of regional or national agricultural development to lay the theoretical foundation for optimizing AEE and proposing sustainable development policies. growth of the rural population, the demand for water is increasing [102]. According to previous studies, rural water supply capacity often has a great impact on agricultural productivity, with lower water supply requiring more resources to sustain agricultural productivity [79], while improved accessibility to water resources can enhance productivity and contribute to environmental protection [93,94].…”

Section: Research Outlookmentioning

confidence: 99%

Data-Driven Evaluation and Optimization of Agricultural Environmental Efficiency with Carbon Emission Constraints

2022

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To cope with global carbon reduction pressure, improved agricultural production efficiency, and optimize regional sustainability, we constructed a data-driven evaluation and optimization method for agricultural environmental efficiency (AEE) under carbon constraints. This study constructs a comprehensive input-output AEE evaluation index system, incorporates carbon emissions from agricultural production processes as undesired outputs, and optimizes their calculation. The Minimum Distance to Strong Efficient Frontier evaluation model considering undesired output, and the kernel density estimation, are used to quantitatively evaluate AEE from static and dynamic perspectives. Tobit regression models are further used to analyze the driving influences of AEE and propose countermeasures to optimize AEE. The feasibility of the above methodological process was tested using 2015–2020 data from the Anhui Province, China. Although there is still scope for optimizing the AEE in Anhui, the overall trend is positive and shows a development trend of “double peaks”. The levels of education, economic development, agricultural water supply capacity, and rural management are important factors contributing to AEE differences in Anhui. Data and regression analysis results contribute to the optimization of AEE and proposes optimization strategies. This study provides extensions and refinements of the AEE evaluation and optimization, and contributes to sustainable development of regions.

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Section: Research Outlookmentioning

confidence: 99%

Data-Driven Evaluation and Optimization of Agricultural Environmental Efficiency with Carbon Emission Constraints

2022

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“…Nowadays, because of the continuous growth of the population and the economy and the uneven spatial distribution of water resources, the problems of water shortages, uneven supply and demand, and the waste of water resources are becoming increasingly prominent. This not only greatly limits social and economic development, but also stimulates contradictions among different regions and industries [1][2][3]. In such a severe situation, a reasonable assessment of the water-resource value in different industries is of great significance in order to protect people's livelihoods, promote economic development, and allocate water resources rationally [4,5].…”

Section: Introductionmentioning

confidence: 99%

Benefit Analysis of Economic and Social Water Supply in Xi’an Based on the Emergy Method

Guo

Wang

Mao³

et al. 2022

Sustainability

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In order to manage regional water resources efficiently and sustainably and promote the rational utilization of water resources, it is necessary to evaluate the water-supply benefit reasonably. On the basis of emergy theory, this paper constructs the water-supply-benefit model of economic (industry, agriculture, and the tertiary industry) and social (domestic, employment security, entertainment, scientific research) systems. Taking Xi’an from 2014 to 2020 as an example, by analyzing the energy flow of each system and the multisource water transformities, the water contribution rate, the water-supply benefit, and the unit-water-resource value in each system are calculated. For the water-supply benefits: Industry > Agriculture > Domestic > Tertiary industry > Employment Security > Entertainment > Scientific research. For the unit-water-resource values: Industry > Tertiary industry > Agriculture > Domestic > Entertainment > Employment security > Scientific research. In the economic system, the water-supply benefit and the unit-water value of industry were always the largest, followed by agriculture and the tertiary industry. However, the Pearson correlation coefficient between the water contribution rate and the output of the industrial system was only 0.52, which was less than that of other production industries, which indicates that there might be a waste of water and that industrial water conservation needs to be further strengthened. In the social system, the domestic-water-supply benefits and the water-resource value were the largest. This is because water resources, as a basic resource, always affect people’s health and quality of life.

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“…The Special Issue comprises 13 articles [3][4][5][6][7][8][9][10][11][12][13][14][15], co-authored by 32 scientists from 10 countries on 4 continents: Cameroon, Tanzania, and Zimbabwe in Africa; Mexico in the Americas; China, Pakistan, Taiwan, and Vietnam in Asia; and Germany and Spain in Europe. Topically, the articles covered the broad range of water management comprising safe drinking water supply [4,5], wastewater management [4,6], groundwater recharge [6], and system design [4,7].…”

mentioning

confidence: 99%

“…Guan et al [12] used the emergy analysis theory to establish a reservoir water supply benefits evaluation model, taking Hekoucun (Henan Province, China) reservoir as an example. Emergy is a scientific concept and measurement scale developed from system ecology and ecological economics [17].…”

mentioning

confidence: 99%

“…Emergy is a scientific concept and measurement scale developed from system ecology and ecological economics [17]. Emergy converts the material flow, the water resource values of different water users, and the water supply situation of the reservoir into a unified standard, which is convenient for quantitative analysis and assessment of development sustainability [12,17]. Their results showed that the trend of water resource values well reflected the contribution and utility of water resources in different sectors (e.g., industrial, agricultural, domestic, ecological).…”

mentioning

confidence: 99%

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Special Issue on Planning, Designing and Managing Decentralized Drinking Water Supply System—Editorial

Noubactep

2021

Processes

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The growing demands for affordable and applicable technologies for decentralized safe drinking water provision have instigated technical innovations in the water filtration industry. Adsorptive filtration appears to be the most affordable, resilient, and socially acceptable solution for households and small communities worldwide. However, water filtration devices have not yet been widely implemented due to lack of awareness for the efficiency of such systems using locally available materials. Water filtration has the potential to secure universal access to safe drinking water by 2030. This special issue has elucidated the applicability, benefits, constraints, effectiveness, and limitations of metallic iron as filter material for safe drinking water provision. Tools to make rainwater a primary water source are also presented together with ways to transform existing centralized water management systems into decentralized ones (sectorization). The knowledge is applicable to a wide variety of situations on a global scale.

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Study on Production, Domestic and Ecological Benefits of Reservoir Water Supply Based on Emergy Analysis

Cited by 13 publications

References 23 publications

Data-Driven Evaluation and Optimization of Agricultural Environmental Efficiency with Carbon Emission Constraints

Data-Driven Evaluation and Optimization of Agricultural Environmental Efficiency with Carbon Emission Constraints

Benefit Analysis of Economic and Social Water Supply in Xi’an Based on the Emergy Method

Special Issue on Planning, Designing and Managing Decentralized Drinking Water Supply System—Editorial

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