【摘要】 利用文献资料法、因果分析法与定量比较法,采用能值理论,创新定量评价土地利用的各类物能投入与产品、服务产出的相互关系,科学、准确地说明耕地利用可持续利用水平。结果发现,新野县耕地利用总能值投入不断上升,但环境资源能值投入下降,工业辅助能投入增加且超过60%;新野县耕地生态经济系统的环境负载率不断上升;各乡镇的可持续发展指标不断下降。更多还原

【Abstract】 Applying the theory of emergy,the relations among material,energy inputs and product,service outputs are quantitatively and creatively assessed,the level of sustainable land use in Xinye County are explained.Documentary data method,cause and effect analysis,quantitative comparison methods are used.The results are: 1) The input of total emergy value of land use is on the rise,but that of environmental resource declines,the input of industry auxiliary emergy sharply increases by 60%;2) The environmental loading rate of arable land eco-economic system is gradually increasing;3) The sustainable development index of every town or township is gradually decreasing in Xinye County.更多还原