基于生态足迹的甘薯燃料乙醇循环产业分析  

Analysis of the Circulation Industry of Pachyrhizus Fuel Ethanol Based on the Ecological Footprint Method

作　　者：贾春蓉[1] 夏训峰[2] 席北斗[2] 张军[1] 

机构地区：[1]西华师范大学国土资源学院,四川南充637002 [2]中国环境科学研究院,北京100012

出　　处：《安徽农业科学》2010年第7期3668-3670,共3页Journal of Anhui Agricultural Sciences

基　　金：中央级公益性科研院所基本科研业务专项项目(2007kyyw43);"十一五"国家科技支撑计划重大项目(2009BADC2B04);西华师范大学科研启动基金项目(05B048)

摘　　要：采用生态足迹方法对甘薯燃料乙醇循环产业各子系统(农业生产、乙醇生产、循环生产和废物处理4个子系统)的生态占用、资源循环利用和污染排放等情况进行了分析。结果表明,甘薯燃料乙醇循环产业链的延长伴随着生态足迹的增长,其中农业生产子系统生态足迹占用面积最大;生态足迹的经济效益随产业链的延长而增加,说明延长产业链可以提高资源利用效率;循环生产和废物处理子系统解决了乙醇生产过程中的环境污染问题;系统的能源生态足迹和水生态足迹较大,应重点降低能耗和水耗。The ecological footprint（EF）method was applied to analyze the EF,resources recycling and environmental pollution among various subsystems in the circulation system of pachyrhizus fuel ethanol,this system was made up of four subsystems which were the systems of agriculture,ethanol production,circulation production and waste treatment.The results indicated that the prolonging of production chain followed the increase of EF,in which the EF of agriculture occupied the biggest area.It was found that the increase of economic benefit followed the prolonging of industry chain,meaning that the prolonging of production chain was of importance to improve resources utilization efficiency.The two subsystems of circulation production and waste treatment solved the environmental pollution during the ethanol production process.The EF of energy and water had high proportions in the system,which suggested that consumption of energy and water should be reduced.

关 键 词：燃料乙醇 循环产业 生态足迹 甘薯 

分 类 号：S216[农业科学—农业机械化工程]