投入产出法在我国生态足迹研究中的应用

将投入产出法应用于我国产业生态占用的研究.结果表明:生态足迹第一、第二、第三产业的构成分别为0.9626,0.3912,0.1844 hm2/cap;从占用土地方式看,第一产业直接占用最多,为0.9580 hm2/cap,其次是第二产业间接占用,为0.3433 hm2/cap;第一产业对生态占用的影响超过各产业平均影响水平,国民经济发展过程中对该产业生态占用需求较大,是控制生态占用总体水平的关键产业.考虑生态占用对环境造成的影响以及与经济发展的关系,产业结构调整优先顺序依次为第一、第二、第三产业.

Input-Output Analysis in Application to Study on China's Ecological Footprints

The ecological footprints of three industrial sectors in China were studied through input-output analysis.In view of the formation of the primary,secondary and tertiary industries,their ecological footprints were 0.9626,0.3912 and 0.1844hm2/cap,respectively.But,in view of the different modes of land occupation,the direct ecological footprints due to the occupation of primary industry become the absolute majority,i.e.,0.9580hm2/cap or 62.3% of the total,and the next one was the indirect ecological footprints due to that of secondary industry,i.e.,0.3433hm2/cap or 22.3% of the total.The data implies that the impact of primary industry on ecological footprints is much higher than the average level of the impact of other industries,and the primary industry played a key role in controlling the overall level of ecological footprints since it demanded a dominant part of ecological footprints in the process of national economic growth.Considering the impact of ecological footprints on the environment and economic development,the industrial structure should be readjusted in order of primary,secondary and tertiary.