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Indexed by:期刊论文

Date of Publication:2016-03-01

Journal:RENEWABLE & SUSTAINABLE ENERGY REVIEWS

Included Journals:SCIE、EI、SSCI

Volume:55

Page Number:789-810

ISSN No.:1364-0321

Key Words:Climate-change mitigation; Policy decision; Life-cycle assessment; Uncertainty optimization; China

Abstract:Understanding the competitive uses of straw resources as substitutes for fertilizer nutrients, forage and fossil energy is critical to maximize the mitigation of climate change. Focusing on the mitigation of global warming, we developed an uncertainty model for the optimal use of straw in China based on available studies of life-cycle assessment that have determined the advantages of energy savings and reductions of greenhouse gases (GHGs) of 14 conversion technologies. The current pattern of straw use has saved China 0.75 EJ of energy and has reduced GHGs by 270.76 Mt CO(2)e on average annually. Among all competitive uses, the use of straw as forage was most environmental friendly, followed by the uses of straw as alternative sources of nutrients and energy. Simulated scenarios for policies of competing straw uses suggested that joint decision-making among administrative departments was vital to maximize the national mitigation of global warming (i.e. 1.84-2.26 EJ of energy saved or reductions of GHGs of 464.89-568.61 Mt CO(2)e annually) by considering all straw uses comprehensively instead of overemphasizing a single use. (C) 2015 Elsevier Ltd. All rights reserved.