碳汇视角下中东部农业环境全要素生产率估算

在测算1994~2012年间中东部地区农业碳排放量和农业碳吸收量的基础上,发现农业碳排放量大于农业碳吸收量,农业对环境总体上处于正的溢出效应。因此,将农业＂碳净吸收量＂作为农业生产的正产出,运用非径向Super SBM模型修正了中东部各地区的农业全要素生产率。研究表明：1994~2012年间中东部地区农业全要素生产率处于下降状态,其中技术进步是促进农业全要素生产率增长的主要动力,而技术效率仍有进一步挖掘的潜力。东部地区全要素生产率略高于中部地区,这是因为东部地区技术效率高于中部地区,且两地技术效率差距有拉大的趋势;但东部地区的技术进步率低于中部地区。

Agricultural TFP of Central and Eastern China-Based on Environment Measurement

Based on the estimation of the quantity of carbon emissions and carbon absorption of agriculture in central and eastern China between 1994~2012years,it is discovered that carbon emissions are larger than carbon absorption in agriculture,and agriculture is in a positive spillover effect on the overall environment.This article takes the agriculture＂net carbon absorption＂as a positive output,and estimates agricultural total factor productivity（TFP）of central and eastern China.Studies have shown that agricultural average TFP is lower growth.Technological change progress is the main driving force to promote agricultural TFP growth,while technological efficiency has to be improved.TEP of eastern area is slightly higher than that of middle region owning to the fact that the former＇s technical efficiency is higher than the latter＇s one,and the gap between the two regions tends to be bigger;while the former＇s technological progress rate is lower than the latter＇s one.