Emergency Input-output Analysis of Agroecosystem in Jiangsu Province

摘要

Agricultural system is an ecological-economic system; emergency input-output analysis is a good method to evaluate its conditions. In this article, the emergency input and output of agriculture in Jiangsu Province during 1990 to 2002 are calculated. The changes and structures of emergency input and output are analyzed, it is indicated that the agricultural modernization level of agriculture in Jiangsu is higher than the average level in China. Then with regression analyses, two mathematic models are presented to analyze the relations between the emergency output and main emergency input factors. It is found that fertilizer is the most powerful driving force, meanwhile the labor transfer is helpful to raise the production rate. At last, suggestions to improve the agriculture production are put forward.