Emergy evaluation of positive and negative benefits of agricultural water use based on energy analysis of water cycle

Gao, Meiyan; Wu, Zening; Guo, Xiaohong; Yan, Denghua

doi:10.1016/j.ecolind.2022.108914

Cited by 5 publications

(5 citation statements)

References 32 publications

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“…As a methodological approach for evaluating the ecological sustainability of various systems, Emergy theory can be applied to assess multiple types of systems such as agriculture, urban systems, industry, materials, regions, and buildings [7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26]. The indicators for emergy assessment include environmental load ratio(ELR), emergy yield ratio(EYR), and emergy sustainability indicator(ESI).…”

Section: Emergy Theorymentioning

confidence: 99%

Investigation on Sustainable analysis of Building System from LCA-Emergy-Carbon emission perspective

Ye,

Zhang,

Zhang

et al. 2024

Advances in Social Science, Education and Humanities Research

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Currently, in the context of carbon neutrality, research on the ecological sustainability of building systems holds significant importance. This paper evaluates the sustainability of building systems by integrating the concepts of ecological emergy theory and carbon emissions calculation with systems engineering principles. The results indicate that the operational phase of buildings is the key contributor (accounting for approximately 79.6% of the total emergy and 97.9% of the overall carbon emissions), representing the highest amounts of emergy and carbon emissions within the entire building system. To enhance the ecological sustainability of building systems, the exploration and consideration of renewable energy subsystems have been conducted. This contributes to achieving low-carbon sustainable building practices and helps mitigate global climate issues.

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Section: Emergy Theorymentioning

confidence: 99%

Investigation on Sustainable analysis of Building System from LCA-Emergy-Carbon emission perspective

Ye,

Zhang,

Zhang

et al. 2024

Advances in Social Science, Education and Humanities Research

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“…These variables capture factors identified in earlier studies as associated in other desert regions as well as agricultural farmlands to food losses. Crop and season are associated with water scarcity and land fertility as well as culture region (Gao et al, 2022). Farmer education is negatively correlates with loss food, the better educated owner and farmer would be expected to lose less food if that is their concern.…”

Section: Descriptive Statistics and Study Variablesmentioning

confidence: 99%

Food losses from farm to retail operations: agricultural produces supply chain of Baja Peninsula, México

Martinez Camacho,

Ascencio Valle,

Yahia Kazuz

et al. 2024

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Objective: To evaluate food losses (FL) volumes generated by farms in Baja California Peninsula, México, of five agricultural commodities. Design/methodology/approach: Baja California Sur (BCS) state was the study area. Information was gathered from a total of 380 sampled chain actors in asparagus, mango, strawberry, orange and tomato by survey and personal interviews. Tobit technique was applied to identify factors that influence FL percentage. Results: Data shows about 11.8% of asparagus is lost during harvesting and distribution, as well as 8.5% of strawberry, 26% of mango, 17.8% of oranges and 3.5% of tomatoes, representing 29.9% loss rate of marketed yield. Limitations on study/implications: This study did not classify commodities in the last steps of the supply chain. The five commodities used in the current study correspond to the more important agricultural produces in BCS, but given changing market, harvesting time and produce availability did not consider the waste of the supply chain. Findings/conclusions: Commodity, type of transportation and distribution, education, and human resources has been identified as influence factors in the volume of FL. This exploratory study fills the void in information in terms of its geographic scope and food group number, and farm owners willing to manage food losses for the purpose of obtaining bioactive compound. Keywords: Food loss, agrifood, desert agriculture, food security, retail

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“…In the whole life cycle of the building, the most carbon dioxide is emitted in the building material production stage, at approximately 85%. In this paper, the carbon dioxide can be computed by Equation (15).…”

Section: ) Carbon Emission Calculation Of Operational Use Stagementioning

confidence: 99%

“…From the field of ecological economics, the emergy concept is a new viewpoint for the sustainability evaluation of several systems, including agriculture [9,10], urban systems [11][12][13][14], water treatment processes [15,16], industrial products [17][18][19], material production systems [20,21], health systems [22], plant ecology [23], regional analysis [24,25], building systems analysis [26,27], economic subsystem [28], etc.…”

Section: Introductionmentioning

confidence: 99%

A Sustainability Analysis Based on the LCA–Emergy–Carbon Emission Approach in the Building System

Zhang,

Asutosh

2023

Applied Sciences

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Ecologically sustainable buildings and their carbon emissions are two popular ideas for building life cycle systems. It is a challenge to comprehensively assess the sustainability of building cases using two different methods. Based on over a decade of research, this paper attempts to explore the possibility of quantitatively integrating both approaches. In this study, we adopted the emergy method and carbon emission approach to assess and analyze a building system. In particular, similarities and differences have been identified through emergy and carbon emissions at each stage of the building’s whole life cycle. The results demonstrate that the building operation phase is the critical contributor (Approximately 79.6% of the total emergy and 97.9% of the entire carbon emission), which occupies the most emergy and carbon emission amounts of the whole building system. In order to improve the ecological sustainability of the building system, renewable energy subsystems are considered and explored. While the overall sustainability of the building system is enhanced, the new systems will aggrandize the carbon emissions. Therefore, the ecological sustainability of building systems and carbon emissions should be considered comprehensively, and the relationship between the two views needs to be balanced.

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Emergy evaluation of positive and negative benefits of agricultural water use based on energy analysis of water cycle

Cited by 5 publications

References 32 publications

Investigation on Sustainable analysis of Building System from LCA-Emergy-Carbon emission perspective

Investigation on Sustainable analysis of Building System from LCA-Emergy-Carbon emission perspective

Food losses from farm to retail operations: agricultural produces supply chain of Baja Peninsula, México

A Sustainability Analysis Based on the LCA–Emergy–Carbon Emission Approach in the Building System

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