| 基于灰色关联分析的农业生态系统能量产投研究 |
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| 引用本文： | 岳云华,冉清红,孙传敏,谢德体. 基于灰色关联分析的农业生态系统能量产投研究[J]. 西南大学学报(自然科学版), 2010, 32(11) |
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| 作者姓名： | 岳云华 冉清红 孙传敏 谢德体 |
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| 作者单位： | 成都理工大学地球科学学院;绵阳师范学院资源环境工程学院;西南大学资源环境学院; |
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| 基金项目： | 国家哲学社会科学项目:西部地区耕地保护的经济补偿机制研究—基于耕地保护管理行为主体的视角(编号:10XJY0021); 绵阳师范学院科研基金资助项目:基于行为主体的耕地管理创新研究(编号:MA2009008) |
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| 摘 要： | 集成能量投入-产出分析和灰色关联分析方法,分析1961-2005年我国农业生态系统的能量投入-产出及能效率的变化,找出影响其变化的主导因素.结果表明:能量投入以畜力、有机肥和化肥为主,农业机械能和农业劳动力能比重小;随着能量投入的增加,单位耕地面积上的能量产出在波动中增长,1970年以来高于世界平均水平,但能效率在波动中下降.能效率与农业劳动力能和畜力能等传统动力能的关联性强,有机肥能投入减少对能效率的下降影响较大,化肥能的大量投入对总能量产出的贡献有限.因地制宜地增加机械能、提高有机肥能比重,有助于提高能效率.
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| 关 键 词： | 灰色关联分析 能效率 能量投入 能量产出 |
Analysis of Energy Efficiency in the Agro-ecosystems in China Based on Grey Relevancy Theory |
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| YUE Yun-hua,,RAN Qing-hong,SUN Chuan-min,XIE De-ti.College of Earth Science,Chengdu University of Technology,Chengdu ,China,.School of Resources , Environment Engineering,Mianyang Normal University,Mianyang Sichuan ,.School of Resources , Environment,Southwest University,Chongqing. Analysis of Energy Efficiency in the Agro-ecosystems in China Based on Grey Relevancy Theory[J]. Journal of southwest university (Natural science edition), 2010, 32(11) |
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| Authors: | YUE Yun-hua RAN Qing-hong SUN Chuan-min XIE De-ti.College of Earth Science Chengdu University of Technology Chengdu China .School of Resources & Environment Engineering Mianyang Normal University Mianyang Sichuan .School of Resources & Environment Southwest University Chongqing |
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| Affiliation: | YUE Yun-hua1,2,RAN Qing-hong2,SUN Chuan-min1,XIE De-ti31.College of Earth Science,Chengdu University of Technology,Chengdu 610059,China,2.School of Resources & Environment Engineering,Mianyang Normal University,Mianyang Sichuan 621000,3.School of Resources & Environment,Southwest University,Chongqing 400716 |
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| Abstract: | In the present study,energy input-output analysis and grey relevancy analysis were combined to study the changes in energy input-output and energy efficiency in the agro-ecosystems of China from 1961 to 2005 and to investigate the leading factors responsible for these changes.The results showed that the contribution to energy input was in the order of animal power > organic fertilizer > chemical fertilizer > agricultural machines.The largest contribution was made by agricultural workforce and animal power.I... |
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| Keywords: | grey relevancy analysis energy efficiency energy input per hectare to the arable land energy output per hectare of major farm products from the arable land |
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