农地非农化代际配置与农地资源损失

合理的资源利用要求资源配置在代际上是有效率的。在资源代际最优配置原理的基础上,建立了一个衡量农地非农化是否符合代际配置效率的宏观决策模型,对我国20世纪90年代以来的农地非农化进行了检验。结果显示,若以1989-2003年为研究区间,1989-1996年阶段东、中、西部地区的过度非农化比例分别占各自实际非农化数量的6.58%、6.84%和7.85%,反映出1989-1996年期间的农地非农化存在一定的短期行为,造成农地的过度非农化。因此,未来一段时间的农地非农化政策应该进一步控制农地非农化的速度,来保证农地资源能够在未来得到更优的利用。

Intergenerational Allocation of Farmland Conversion and Farmland Resource Loss

One of the requirements of reasonable utilization of resources is the efficiency of intergenerational allocation,which is important to the long term utilization of resources.Whether or not can the intergenerational allocation of farmland resource to be converted into non-agricultural use in China in recent years meet the requirement,which is very important,or even more,due to the austere scarce farmland resource in China.Based on the principle of efficient intergenerational allocation of resource in resource economics,this paper builds a model to measure the efficiency of intergenerational allocation of farmland resource in past years,and points out that with the continuous testing and modifying of the real action,the allocation of farmland resource in the future can continuously approach to the efficient allocation.This paper also employed this model to test the allocation of the farmland resource from 1989 to 2003,and the result showed that if the test sample was divided into the period from 1989 to 1996 and from 1997 to 2003,due to the stricter farmland resource protection policy issued in 1996,the farmland resource loss in the three main regions in China in the phase of 1989 to 1996 is 6.58%,6.84%,7.85%,respectively.It reflected that the conversion of farmland resource in 1989 to 1996 is unreasonable.The utilization is a short behavior from long term prospect,which caused an excessive farmland resource loss.So the utilization policy of farmland resource in the near future should control the conversion speed of the farmland to ensure the more optimal utilization of the resource in the future.