中文摘要：

基础设施作为社会先行资本对经济发展有着重要作用,而交通基础设施是基础设施中很重要的部分,其发展和完善对农村经济增长有着积极的促进作用。使用C-D生产函数对农村农业部门1991～2009年29省市的面板数据进行回归,结果显示交通基础设施产出弹性为0.0327,分东、中、西部三个区域来看中部地区交通设施对经济增长影响最大,加大交通设施的投入不但可以促进中部地区经济增长,而且有利于全国范围的经济增长;对非农部门1998～2007年30省市的面板数据回归结果显示交通设施对非农部门的影响不显著。

英文摘要：

As a leading investment,infrastructure,especially transportation infrastructure,plays a key role in economic growth such as the development of rural economy.C-D Production Function and penal data for 29 provinces from the year 1990 to 2009 are used to estimate how transportation infrastructure affect agricultural outcome.The results show that the elasticity of transportation infrastructure is 0.0327.Besides,compared with that of other regions,the effects of transportation infrastructure in central region on economic growth are the most.The improvement of transportation infrastructure is not only good for central region but also good for the whole nation;the estimation of penal data from non-agricultural departments shows the effects from transportation infrastructure are not significant.