我国淡水养殖业科技进步贡献率测算分析

Calculation and analysis of the contribution rate of freshwater aquaculture science and technology progress in China

改革开放以来,中国淡水养殖业快速发展,在我国养殖业和农业中的地位不断提高,并成为世界水产业发展中突出的进展之一。科技的快速进步在支撑中国淡水养殖业快速发展中起到了非常重要的作用。本文利用C-D生产函数对我国淡水养殖业科技进步贡献率进行了测算,结果表明:总体上,1990～2007年我国淡水养殖业科技进步贡献率为60.87%,贡献率较高;分地区来看,地区差异显著,东部最高且高于全国平均水平,西部高于中部且都低于全国平均水平;从时间上看,淡水养殖科技进步贡献率总体呈增长趋势,但近几年明显放缓。

Since the reform and opening-up, the development speed of freshwater aquaculture in China is much higher than that of food and animal husbandry. The status of freshwater aquaculture in breeding industry and agriculture of China rises rapidly, and it becomes one of the most outstanding progresses in development of the world aquaculture. The rapid development of science and technology plays a very important role in supporting the rapid development of freshwater aquaculture in China. This paper applies C-D production function model to calculate the contribution rate of freshwater aquaculture science and technology progress, and the result indicates that generally, the contribution rate in China is 60.87% from 1990 to 2007, and the date is higher. Regionally, there are significant differences in different areas of China. Eastern area is the highest, and it＇s higher than the national average level, western area is higher than the central regions, but both are lower than the national average level; In terms of time, although the contribution rate presents an increasing trend on the whole, but recently the contribution rate has noticeably slowed down.