以水稻田多功能觀點評估合理綠色補貼

Estimation of Rational Green Subsidy by the Aspect of Multi-functionality of Paddy Field

姚星賓(Hsing-Pin Yao)

指導教授 ： 劉振宇

國立臺灣大學/生物資源暨農學院/生物環境系統工程學研究所/碩士(2007年)

https://doi.org/10.6342/NTU.2007.00630

摘要

摘要
本研究採用經濟學理論中之替代法評估水田多功能貨幣價值，進而應用經濟模式之補償變量法評估當水田耕種面積減少時應對農民合理綠色補貼金額。
全省88年至94年間自35萬公頃銳減至27萬公頃，尤其93年度更只有23萬公頃之稻作收穫面積，造成全省水稻田內外部經濟價值大幅損失。研究結果指出內部效益由1999年之449億元減少至2005年之327億元，外部效益由1999年之2,482億元減少至2005年之1,900億元。本研究將全省分北、中、南、東四個區域及不分區分別進行評估，北部與南部之水田生產產值與外部性效益大致呈現互助關係；中部之水田生產產值與外部性效益於前半段呈現互競關係，後半段則趨近於互補關係；東部地區水田生產產值與外部性效益，前半段呈現互助關係，後半段則為互競關係；全省不分區結果則呈現互助關係。再以經濟模式之補償變量法評估其綠色補貼，其估算結果顯示各年度之綠色補貼金額為每公頃23,498元。

關鍵字

水田 ； 多樣性機能 ； 外部效益 ； 生產可能曲線 ； 補償變量 ； 綠色補貼

並列摘要

Abstract
The purpose of this study is to assess the reasonable amount of green subsidy to Taiwanese farmers based on the quantified multifunctionality of paddy field. The compensate variation method is adopted to determine the amount of green subsidy due to the area reduction of paddy field.
Paddy field not only can produce food but also can store floodwater, dispel floodwater, purify air and water quality, conserve groundwater, adjust ambient temperature and so on. In Taiwan, from 1999 to 2005, paddy field areas drop from 350,000 hectares to 270,000 hectares. During this period, the multifunctionality data of paddy field were collected and calculated. The estimated internal benefit of paddy fields drop from 44.9 to 32.7 billion NT dollars and the external benefit of paddy field drop from 248.2 to 190 billion NT dollars.
The study further consider as Taiwan as a whole region and divides Taiwan into north, center, south and east four sub-regions to evaluate the whole regional and sub-regional inter-relationship between internal and external benefits. The whole region, north and south sub-regions exhibit a cooperation relation while other sub-regions show mixed inter- relationships. According the results of the amount of green subsidy evaluated by compensate variation method (CVM), the estimated amount of green subsidies of years 1999-2005 is 23,498 NT dollars/ha.

並列關鍵字

Paddy fields ； Multi-function ； External benefits ； Production possibility curve ； Compensate variation ； Green Subsidy

參考文獻

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