Application of a Paired-comparison Method to Evaluate Forest Public Service Values

應用配對比較法評估森林公共服務之價值

林俊成(Jiunn-Cheng Lin) ； 李國忠(Kuo-Chung Lee) ； 林麗貞(Li-Chen Lin) ； 林裕仁(Yu-Jen Lin)

《台灣林業科學》 22卷1期 (2007/03) Pp. 69-80

https://doi.org/10.7075/TJFS.200703.0069

摘要

本研究係採用配對比較法原理設計網路問卷，蒐集分析社會大眾對非市場與無貨幣價格之森林公共服務在配對比較原則下，相對於實質貨幣價值之偏好度與重要性，藉以評估不同森林公共服務之重要性與相對貨幣價格。應答者係在不同之森林公共服務、具市場價值之私人財貨及實質之貨幣三項因素間進行成對比較，回答其偏好性與重要性。分析結果顯示，社會大眾對不同森林公共服務之重要性認知從高至低分別是水資源涵養、土壤穩固與崩塌防範、生物多樣性保育、碳吸存功能、生態旅遊。而水資源涵養及土壤穩固與崩塌防範之相對貨幣價值是高過本研究提供比較之私人財貨價值，然仍低於本研究提供比較之某些實質貨幣價值。而對森林不同公共服務之偏好性則與受訪者之年齡、教育程度與收入有關。

關鍵字

配對比較 ； 偏好度 ； 環境公共財 ； 森林公共財與服務 ； 貨幣價值 ； 非市場效益

並列摘要

In this study, a paired-comparison method for which we designed an Internet questionnaire was applied to evaluate the relative monetary values for forest public goods and services which have no defined market value or no known monetary value. Through a series of interactive paired comparisons for a given set of elements, which were mixtures of forest public goods and services, private goods possessing market value, and sums of money, the importance levels and preferences were ranked, and the relative monetary values were evaluated. The results indicated that the preferences for forest public goods and services from high to low were ranked as water resources reservoir, soil stabilization and land erosion control, biodiversity conservation, carbon sequestration, and ecotourism offerings. The relative monetary values of water resources reservoir and soil stabilization and land erosion control were both higher than the compared private goods, but not higher than some sums of real money. The preferences appeared to be influenced by an individual's age, educational level, and personal income.

並列關鍵字

paired comparison ； preference rank ； environmental public good ； forest public goods and services ； monetary value ； nonmarket benefit