黄淮海地区农业生态经济系统能值分析  

Emergy Analysis of Agroecosystem in Huang-huai-hai Region

作　　者：曹志宏[1] 郝晋珉[1] 梁流涛[2] 

机构地区：[1]中国农业大学土地资源管理系,北京100193 [2]南京农业大学公共管理学院,江苏南京210095

出　　处：《农业现代化研究》2009年第4期466-470,共5页Research of Agricultural Modernization

基　　金：国家科技攻关课题(编号:2004BA508B01);长江学者和创新团队发展计划(编号:IRT0412)

摘　　要：为了更好地评价黄淮海地区农业生态经济系统的运行特征和可持续发展状况,本文利用能值分析理论通过构建评估指标体系,对黄淮海地区农业生态系统的能值投入产出状况、环境承载情况和生态系统运行效果进行了定量分析。结果表明黄淮海地区农业生态系统能值产出率相对较高,整体运行状况较好,具有较强市场竞争力,环境承受能力较强和可持续发展能力较强,但仍处于石油农业发展阶段,其化肥、农药和地膜等工业辅助能值大幅度增加,其发展可持续性有一定下降趋势,造成对生态环境的较大压力应引起关注。为促进黄淮海地区农业的可持续发展,应调整其能值投入和产出结构,加大农业科技的研究和推广力度,适当降低以化肥为代表的工业辅助能投入,改变化工农业生产模式,走农业可持续发展的道路。In this paper,the emergy input and output,environmental loading and running effect of agroecosystem in Huang-huai-hai region were quantitatively analyzed to better evaluate its operating characteristics and the sustainable development of agriculture based on the theory of emergy analysis by structuring index system for agroecosystem emergy estimation. The results show that the agroeeosystem in Huang-huai-hai region has higher efficiency of emergy output, better effect of running,stronger market competition, more powerful environmental carrying capacity and sustainable development capacity, but it still at the stage of petroleum agriculture, chemical fertilizer, pesticide and plastic film etc. Uurenewable industrial emergy raising by big percentages leads to its sustainability of decreasing trend to a certain degree, and causes greater pressure to the ecological environment which we should pay more attention to. To promote the sustainable development of agriculture in Huang-huai-hai region, we should gradually adjust the investment proportion of input and output emergy; strengthen the research and extension of agricultural science and technology; properly decrease non-renewable industrial assistance emergy represented by fertilizer investment; change the model of chemical agricultural production; taken the road of sustainable agricultural development

关 键 词：能值分析 农业生态经济系统 指数体系 运行特征 黄淮海地区 

分 类 号：F062.2[经济管理—政治经济学]