Efficiency and sustainability analysis of grain production in Jiangsu and Shaanxi Provinces of China |
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| Affiliation: | 1. Department of LUCC and Land Resources, Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China;2. Information Center of Ministry of Land and Resources, Beijing 100812, China;1. School of Resource and Environmental Sciences, Wuhan University, Wuhan, China;2. Key Laboratory of Geographical Information Systems, Ministry of Education, Wuhan University, Wuhan, China;3. Key Laboratory of Digital Mapping and Land Information Application Engineering, National Administration of Surveying, Mapping and Geoinformation, Wuhan University, Wuhan, China;1. College of Agriculture, South China Agricultural University, Guangzhou 510642, China;2. College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China;1. School of Geography and Tourism, Chongqing Normal University, Chongqing 401331, China;2. School of Geography and Ocean Science, Nanjing University, Nanjing 210023, China;3. Chongqing Key Laboratory of Earth Surface Processes and Environmental Remote Sensing in Three Gorges Reservoir Area, Chongqing 401331, China;1. School of Public Administration, Hohai University, Nanjing 210098, China;2. College of Urban and Environmental Sciences, Peking University, Beijing 100871, China;3. Center for International Earth Science Information Network (CIESIN), Earth Institute, Columbia University, P.O. Box 1000 (61 Route 9W), Palisades, NY 10964, USA;4. College of Geographic Sciences, Nanjing Normal University, Nanjing 210046, China;5. Life and Geography Science School, Qinghai Normal University, Xining 810008, China;1. School of Public Affairs, Chongqing University, Chongqing 400000, China;2. Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China;3. College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China;4. School of Business, Hunan First Normal University, Changsha 410025, China;5. Key Laboratory of Environment Change and Resources Use in Beibu Gulf, Nanning Normal University, The Ministry of Education, Nanning 530001, China;6. School of Geography, Geomatics and Planning, Jiangsu Normal University, Xuzhou 221116, China |
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| Abstract: | Efficiency and sustainability of grain production has now been an important issue in China. Aiming at analyzing such efficiency and sustainability in different parts of China, the grain production system of Jiangsu and Shaanxi Provinces was analyzed and compared by means of using emergy method in this study. The results showed that deterioration of emergy input structure (inorganic assistant emergy inputs increased drastically while organic ones decreased or increased little) affected the grain production system's efficiency and sustainability of both provinces, and the situation of Jiangsu Province is more serious than that of Shaanxi Province. According to the results of efficiency and sustainability analysis, this paper suggests that we should utilize environmental resources abstemiously and dramatically to reduce the assistant emergy input structure into the grain production system. |
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