赤土流出対策の検証と費用負担問題:―石垣島の圃場データの分析から―

Translated title of the contribution: The Verification and the Problem of Cost Burden Involved in Erosion Countermeasures: A Case Study Based on the Analysis of the Field Data on Ishigaki Island

坂井 教郎, 森高 正博, 横川 洋

Research output: Contribution to journalArticle

Abstract

The purpose of this paper is to examine the erosion countermeasures which were devoted a large amount of the financial resources and to discuss the theoretical measures of the erosion problem on Ishigaki Island. First of all, to examine the erosion countermeasures in the past, we analyzed the field data of the island from the point of view of cost-benefit. Next, we discussed the theoretical measures in terms of the cost burden involved to achieve erosion protection. As a result, we clarified that the cost benefit of each countermeasure differs greatly and that some erosion countermeasures have been practiced in low risk areas. In order to achieve effective erosion countermeasures, farmers should practice the most cost-effective means selected from the high risk fields. In order for less soil to be eroded away, they should spread the countermeasures from the high risk fields to the low risk ones. So as to accomplish our policy objective, we need to insist that farmers have to practice the erosion countermeasures in the fields which need them. And the reference level divides the cost burden between farmers and government.
Original languageJapanese
Pages (from-to)65-73
Number of pages9
Journal農林業問題研究
Volume51
Issue number2
DOIs
Publication statusPublished - 2015

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erosion
cost
analysis
resource
soil
cost-benefit

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赤土流出対策の検証と費用負担問題:―石垣島の圃場データの分析から―. / 坂井教郎; 森高正博; 横川洋.

In: 農林業問題研究, Vol. 51, No. 2, 2015, p. 65-73.

Research output: Contribution to journalArticle

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