中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Emergy evaluation of cropping, poultry rearing, and fish raising systems in the drawdown zone of Three Gorges Reservoir of China

文献类型:期刊论文

作者Cheng, Hui1,2; Chen, Chundi1; Wu, Shengjun1; Mirza, Zakaria A.1; Liu, Zhimei1
刊名JOURNAL OF CLEANER PRODUCTION
出版日期2017-02-15
卷号144页码:559-571
关键词Agricultural System Drawdown Zone Emergy Environmental Sustainability
ISSN号0959-6526
DOI10.1016/j.jclepro.2016.12.053
英文摘要

The agricultural production in the drawdown zone of Three Gorges Reservoir of China has been gradually attracting people's attention in recent years. As influenced by both excessive farming and artificially regulated water level fluctuation, the environmental sustainability of the agricultural system in the drawdown zone is being concerned widely with its production mode and increasing use of agricultural chemicals. Emergy method was used in this study to evaluate the environmental performance of the three agricultural production systems, i.e., cropping, poultry rearing, and fish raising system in the drawdown zone of Three Gorges Reservoir of China. Additionally, to attain a comprehensive understanding of the driving force of respective system's production, some economic indicators are selected to learn the economical efficiency of the three systems referred. The results indicate that the purchased nonrenewable resource accounts for a major portion in cropping production, whereas the renewable resource input constitutes the main part in poultry rearing and fish raising systems. The emergy yield ratio (EYR), environmental loading ratio (ELR), emergy sustainability index (ESI), and economic output/input ratio indicate that the cropping system is less well performed than the poultry rearing and fish raising systems on environmental sustainability, albeit with a relatively higher economic output and net profit. To achieve an environmental sustainable agricultural production, green and clean energy should be advocated to use in the cropping system. At the same time, the government should provide some policy supports to develop an intensive poultry rearing and fish raising productions for raising local farmers' income. Besides, it should be noted that, a controversy about whether the drawdown zone land should be used or not is gradually becoming a social dilemma in Three Gorges Reservoir area. In the long run, the cooperation between the government and local farmers is crucial for alleviating this contradiction, whereby the drawdown zone area's agricultural production could achieve a sustainable development with a light environmental impact. (C) 2016 Elsevier Ltd. All rights reserved.

资助项目National Natural Science Foundation of China[51408584] ; National Natural Science Foundation of China[41301612] ; Kaixian People's Government of Chongqing Municipality[cstc2012jcsfjfzhX0003] ; Chongqing Science and Technology Commission[cstc2014yykfC20002] ; Chongqing Science and Technology Commission[Y33Z172N10] ; Chongqing Science and Technology Commission[cstc2015jcyjA00006] ; Chinese Academy of Sciences[Y43A370N10]
WOS研究方向Engineering ; Environmental Sciences & Ecology
语种英语
WOS记录号WOS:000393249300052
出版者ELSEVIER SCI LTD
源URL[http://119.78.100.138/handle/2HOD01W0/3328]  
专题生态过程与重建研究中心
作者单位1.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, 266 Fangzheng Ave, Chongqing, Peoples R China
2.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing, Peoples R China
推荐引用方式
GB/T 7714
Cheng, Hui,Chen, Chundi,Wu, Shengjun,et al. Emergy evaluation of cropping, poultry rearing, and fish raising systems in the drawdown zone of Three Gorges Reservoir of China[J]. JOURNAL OF CLEANER PRODUCTION,2017,144:559-571.
APA Cheng, Hui,Chen, Chundi,Wu, Shengjun,Mirza, Zakaria A.,&Liu, Zhimei.(2017).Emergy evaluation of cropping, poultry rearing, and fish raising systems in the drawdown zone of Three Gorges Reservoir of China.JOURNAL OF CLEANER PRODUCTION,144,559-571.
MLA Cheng, Hui,et al."Emergy evaluation of cropping, poultry rearing, and fish raising systems in the drawdown zone of Three Gorges Reservoir of China".JOURNAL OF CLEANER PRODUCTION 144(2017):559-571.

入库方式: OAI收割

来源:重庆绿色智能技术研究院

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