期刊
ENERGY POLICY
卷 104, 期 -, 页码 274-284出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.enpol.2017.01.051
关键词
Crop production system; Energy consumption; Greenhouse gas emissions; LMDI; Spatio-temporal characteristics
资金
- National Natural Science Foundation of China [71521002, 71402103]
- MOE Youth Foundation Project of Humanities and Social Sciences at Universities in China [13YJC630123]
- Postdoctoral Science Foundation Funded Project [2015M580053, 2016T90042]
- Natural Science Foundation of Guangdong Province [2015A030313556]
This paper aims to reveal the spatio-temporal patterns of energy consumption-related greenhouse gas (ECR-GHG) emissions in China's crop production systems (CPSs). The relevant crop production data from 31 provinces during 1997-2014 are utilized. In order to fully reflect the energy consumption and ECR-GHG emissions in CPSs, energy balance techniques are adopted from a consumption perspective. The driving factors behind ECR-GHG emissions are identified by means of a Logarithmic Mean Divisia Index analysis at both national and provincial levels. The results are as follows: (1) The yield of China's CPS is not positively correlated with energy consumption, and China's CPS has the relatively high potential to conserve energy and reduce ECRGHG emissions; (2) Most of China's provinces have experienced enormous growth in ECR-GHG emissions; however there are relatively significant regional disparities; (3) ECR-GHG emissions from CPSs were mostly derived directly from the consumption of chemical fertilizers and diesel oil; (4) Areal productivity is the determining factor in the growth of ECR-GHG emissions, whereas the emission coefficient and energy mix are the main inhibiting factors; (5) Energy intensity has not achieved its full potential to decrease ECR-GHG emissions. This study provides insights into the potential for sustainable crop production in China.
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