【作者】 张宝林； 潘焕学； 秦涛；

【Author】 ZHANG Baolin;PAN Huanxue;QIN Tao;Economics&Management College,Beijing Forestry University;

【机构】 北京林业大学经济管理学院；

【摘要】 在构建林业治沙内生增长模型的基础上,本文采用1993-2011年和1991-2011年的数据分别对两类国家林业治沙重点工程公共投资绩效进行实证研究。结果表明,在京津工程中,公共投资的产出效应显著,但却存在并不显著的挤出效应。而在三北工程中,平均公共投资低很多、产出效应近似显著,其挤入效应非常显著,私人资本产出效应也非常显著。因此,为了提高绩效,要增加三北工程投资,保护私人造林产权,减少地方政府干预,完善集体林权制度改革等,并提高生态补偿标准、大开发展沙草产业和不断改进林业治沙技术。更多还原

【Abstract】 The paper theoretically constructs an endogenous economic growth model of forestry sand control project in a representative economy.On the base,it make an empirical study on the performance of public investment including crowding in effect and output effect with the data from 1993 to 2011 of Jingjin project and the data from 1991 to 2011 of Three North project respectively.On the one hand,the result shows that there are more public investments per unit area,more significant output effect but insignificant crowding in effect of public investment in Jingjin project At the same time,private investment does not significantly promote forestation and grass planting in Jingjin project On the other hand,there are less public investment per unit area,more significant crowding in effect and nearly significant output effect of public investment in Three North project In the meanwhile,private investment promotes forestation and grass planting in Three North project significantly.Besides lower costs and less average investment,another reason is that most part area of Three North project lie in the poorer western area so that the project could play an important role in the new western rural construction and sustain the stabilization of our borderland.The more important reason is also that there are better policies to encourage private forestation and grass planting,which results in more significant crowding in effect of the public investment in Three North project,during the periods from the first to fourth.Therefore,more public investment should be invested in Three North project rather than in Jingjin project to raise the performance of public investment of the forestry sand control projects.In addition,less administrative intervention should be performed whether in Jingjin project,Three North project and other forestry sand control projects.Besides,the reforms such as collective forestry claims should be continually perfected to protect the claims of private forestation and grass planting.Thirdly,more ecological compensation must be provided by the governmental departments for foresters to encourage their ecological construction of forestry sand control project Especially,more sand grass industries should also be developed to promote the revenues of forester and reduce the positive externality effect of forestry sand control project as far as possible.Finally,advanced technology should be developed for sand control project in the forestation and grass plantation in China to cut the related cost,promote the performance and improve the return of scale of forestry sand control projects.更多还原