https://scholars.lib.ntu.edu.tw/handle/123456789/546798
標題: | Evaluating the environmental impacts of the water-energy-food nexus with a life-cycle approach | 作者: | Li, P.-C. Ma, H.-W. HWONG-WEN MA |
關鍵字: | Environmental impacts; LCA; Resource consumption; Water-energy-food nexus | 公開日期: | 2020 | 卷: | 157 | 來源出版物: | Resources, Conservation and Recycling | 摘要: | This study is an attempt to fill a knowledge gap in our understanding of WEF nexus, focusing on the effects of direct and indirect resource consumption with a life-cycle approach. In Taiwan, the food subsystem is water-intensive and energy-intensive, consuming 99% of water and energy resources directly to produce food. The water subsystem directly consumes 87.18% of its energy for water production, but indirectly consumes 12.82% for operations to prepare for water production and supply. However, the energy subsystem indirectly consumes 91% of the energy and 83% of the water from operations to prepare for energy generation. Consequently, direct resource consumption in the food subsystem and indirect operations in the energy subsystem cause more environmental impacts than those caused by others. The results highlight that environmental impacts derive from not only direct resource consumption but also preparation and production for resource generation (indirect consumption). There are approximately 28% of environmental impacts derived from indirect resource consumption in WEF nexus. Without considering the indirect resource consumption, we will underestimate the total resource depletion and environmental impacts. This study can help in developing policies for saving water and energy and in enforcing resource security. © 2020 Elsevier B.V. |
URI: | https://www.scopus.com/inward/record.url?eid=2-s2.0-85080979551&partnerID=40&md5=1656d0614288fee0bdaa98d0f4351c10 https://scholars.lib.ntu.edu.tw/handle/123456789/546798 |
DOI: | 10.1016/j.resconrec.2020.104789 | SDG/關鍵字: | Artificial life; Energy resources; Life cycle; Water resources; Energy generations; Life cycle approach; Resource consumption; Resource depletion; Resource generations; Water and energies; Water energy; Water production; Environmental impact; energy use; environmental impact; food security; life cycle analysis; resource depletion; resource use; water use; Article; ecological phenomena and functions; electricity usage; energy subsystem; environment; environmental impact; environmental parameters; environmental policy; food subsystem; life cycle; resource consumption; resource security; Taiwan; water energy food nexus; water subsystem; water supply; water usage; Taiwan |
顯示於: | 環境工程學研究所 |
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