基于能值生态足迹理论的福建省农业废弃物再利用方式评估

农业废弃物(包括作物秸秆和畜禽粪便)蕴含着巨大的能量,如果未合理的再利用,将造成资源的浪费甚至环境污染。运用能值分析与生态足迹相结合的方法,对福建省1997—2006年农业废弃物的利用方式进行评估。首先对各种利用方式进行能值评估,然后采用能值生态足迹理论进行分析。结果表明,近10a来,福建省农业废弃物利用方式年均生态盈余为1.299hm2/人,说明福建省农业废弃物再利用的空间仍较大。如果农业废弃物能够被充分利用,将对福建省农业发展以及农业生态环境改善具有很大的促进作用。

An evaluation on the using ways of agricultural wastes reutilization in Fujian based on emergy and ecological footprint theory

The agricultural wastes,including crop straw and livestock and poultry feces,contain huge energy,and their rational reuse plays a significant role in avoiding the squander of resources and the environment pollution. This paper addresses this important issue by using the emergy theory and the ecological footprint theory. This paper first estimates the total amounts of crop straw,and livestock and poultry feces in each of years in Fujian Province from 1997 to 2006,according to the yields of the dominant crops...