Soil and Water Conservation Investment Contributions in Changting County Calculated Based on C-D Function

BI An-ping; ZHU He-jian

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Soil and Water Conservation Investment Contributions in Changting County Calculated Based on C-D Function

- Soil and Water Conservation Investment Contributions in Changting County Calculated Based on C-D Function
- Bulletin of Soiland Water Conservation Vol. 32, Issue 3, Pages: 226-230(2013)
- 作者机构：
  
  1. 闽江学院地理科学系,福建,福州,350108
  2. 福建师范大学自然资源研究中心,福建,福州,350007
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2013
- 稿件说明：
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BI An-ping, ZHU He-jian. Soil and Water Conservation Investment Contributions in Changting County Calculated Based on C-D Function[J]. Bulletin of Soiland Water Conservation, 2013, 32(3): 226-230.
DOI：

BI An-ping, ZHU He-jian. Soil and Water Conservation Investment Contributions in Changting County Calculated Based on C-D Function[J]. Bulletin of Soiland Water Conservation, 2013, 32(3): 226-230. DOI：

摘要

水土保持投资效益测算是水土保持项目评估中的重要内容

但既有效益测算方法很难排除非水土保持因素的贡献

也难以测算系统的综合效益。运用Cobb—Douglas生产函数理论分析了水土保持投资对当地农业经济增长的贡献。结果表明

长汀县农业投资产出弹性最高

科技和制度创新贡献则较低。1999—2009年11a间

水土保持投资贡献了长汀县同期农业GDP的5.20%

产投比为5.9。随着农业物质资本投入的快速增长

水土保持投资对农业GDP的贡献逐年降低

这可能会抑制农户水土保持投资的积极性。

Abstract

Calculating the investment benefits of soil and water conservation(SWC)is an important part in SWC project evaluation.Using the existing methods of benefit calculation

however

is difficult in eliminating the contributions of other factors except SWC and estimating the comprehensive benefits of system.By taking Changting County for an example

an analysis on the contributions of SWC investment to local agricultural economy was made based on the Cobb-Douglas production function theory.Results reveal that the contribution of agricultural investment was highest in the features of output

butlower in technology and system innovation.From 1999to 2009

5.20% of agricul tural GDP were derived from SWC investment and the ratio of output to input was 5.9in Changting County.With the rapid growth of physical capital investment in agriculture

the contributions of SWC investment to agricultural GDP were being reduced year after year

which may restrain farmers'investment enthusiasm for SWC.

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Related Institution

Key Laboratory of Spatial Data Mining & Information Sharing of Ministry of Education, Fuzhou University

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Changting County Soil and Water Conservation Bureau, Changting

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