- 期刊
農業用水移用可能補償金額訂定之研究－以桃竹苗地區爲例
Estimating the Potential Water Transfer Price in Northern Taiwan Regions
摘要
本文之主要研究目的爲利用數學規劃方法來建構水資源移用補償模型，並以用水需求較迫切之桃竹苗地區爲研究對象，根據民國90年桃竹苗地區的水資源供需資料，探討農業用水移用對桃竹苗地區的水資源經濟影響衝擊及移用補償合理金額之訂定。實證結果顯示不同地區應有不同的移用補償金額，主要是因爲各個地區不同的用水需求導致不同之水資源的移轉價格，因而補償的金額亦會不同。新竹地區的補償金額比其他地區高的主要是因爲此地區的工業用水需求較高所致。爲公平合理考量，未來農業用水的移用補償宜考量不同地區產業結構與需水標的差異，隨著不同區域有不同的補償金額。 另外，研究結果亦顯示桃竹苗地區的每公頃補償金額會隨著休耕面積的增加而上升，此反映出大規模水資源移轉時的每公頃補償金額會愈高，亦即用水需求愈強時須付出愈高的金額來獲得水資源的供應。最後，當農業用水移用因休耕面積增加而增加時，水資源移用市場爲完全競爭下的福利增加幅度均超過獨佔市場下的福利增加幅度，此顯示若透過政府的干預使得水資源移用市場更趨向完全競爭市場時將可增加社會福利。
並列摘要
The purpose of this paper is to estimate the potential market price for water transferring among sectors in the Northern Taiwan region. This region is the major semi-conduct and information technology products area in Taiwan which plays an important role to contribute domestic GDP. To do so, a regional water endogenous price economic model using a non-linear programming approach is adopted and built where the water transfer activity from agricultural sector to non-agricultural sector in a water market is taken into the consideration in this model. Later, the potential water transferring price is estimated through this empirical model under the assumption of social welfare maximization. The simulation results proved that the occurrence of water transferring activity from agricultural sector to non-agricultural sector could improve the benefit both in the water market and the agricultural sector.