| 能值分析在农业生态系统中的应用——以山西省为例 |
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| 引用本文： | 王闰平,荣湘民,侯希红. 能值分析在农业生态系统中的应用——以山西省为例[J]. 湖南农业大学学报(自然科学版), 2009, 35(3) |
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| 作者姓名： | 王闰平 荣湘民 侯希红 |
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| 作者单位： | 湖南农业大学,资源环境学院,湖南,长沙,410128;山西农业大学,经济贸易学院,山西,太谷,030801;湖南农业大学,资源环境学院,湖南,长沙,410128;山西农业大学,经济贸易学院,山西,太谷,030801 |
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| 摘 要： | 以山西省为例,运用能值分析方法对农业生态系统进行研究. 结果表明:山西省农业生态系统仍然处于主要依赖人力有机能和环境资源的传统农业阶段;系统能值投资率为1.07,能值产出率为0.99,环境负载率为6.55.在农业结构调整方面,畜牧业取得了长足发展,而小杂粮、蔬菜和干鲜果的能值产出仍较小,远未成为优势产业;农业生态系统整体的回报效率较低,承受的压力较大.
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| 关 键 词： | 能值分析 农业生态系统 指标体系 山西省 |
Energy analysis theory and its application in agro-ecosystem:A case of Shanxi |
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| WANG Run-ping,RONG Xiang-min,HOU Xi-hong. Energy analysis theory and its application in agro-ecosystem:A case of Shanxi[J]. Journal of Hunan Agricultural University, 2009, 35(3) |
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| Authors: | WANG Run-ping RONG Xiang-min HOU Xi-hong |
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| Affiliation: | 1.College of Resource and Environment;HNAU;Changsha 410128;China;2.College of Economy and Trade;Shanxi Agricultural University;Taigu;Shanxi 030801;China |
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| Abstract: | Analysis for structure and function of agro-ecosystem is very important for improving people's idea to protect agricultural environment and resource,and for agro-ecosystem research all over the word.With special advantage,energy analysis can evaluate complex ecosystem including natural,economy and society as a whole.In case of Shanxi agro-ecosystem,this paper expatiates on concept and theory of the energy analysis.The results showed that Shanxi agro-ecosystem still stayed in traditional agriculture period i... |
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| Keywords: | energy analysis agro-ecosystem index system Shanxi province |
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