平原區土地利用潛力評估模式之研究——以臺南高鐵特定區為例

AN ASSESSMENT MODEL OF LAND USE POTENTIAL FOR ALLUVIAL PLAIN AREAS--THE CASE OF THE TAINAN HIGH SPEED RAIL STATION AREA

本文建立一平原區土地利用潛力之評估模式，係將「土地利用潛力」區分為「自然災害」及「區位條件」兩部分，前者探討各種災害影響範圍及程度，後者為各項公共設施設置影響。本文採二階段專家問卷並結合層級分析方法，藉由專家問卷匯集群體意見，訂定因子間之權重，再由災害評估及距公共設施之服務／影響距離的數學函數，率定因子標準化評估值，以獲得土地利用潛力值。本文所建立之評估模式不僅程序明確且適宜大量運算，可解決大面積、多案例分析之土地潛力評估問題，並以台南高鐵特定區為例，說明本文模式之方法程序，可作為區域土地利用之參考。

In this paper, a model is developed to assess land use potential for alluvial plain areas. The model divides an area’s land use potential into “natural disaster”part and “location condition”part. The former analyses the influence of various natural disaster; the latter evaluates the location of public facilities. A two-step expert questionnaire and the AHP method were used to collect experts’ comments and to weight determining factors. The function of disaster assessment and facility service distance can be used to determine factors’ standardized values, thus deriving the area’s land use potential values. The assessment approach not only has a distinguishable process but also is suitable a large amount of calculation, which is adequate to a large area with various land uses and to solve the problems raised in the land use potential evaluation process. The high speed railway Tainan Station district planning area is a typical case used in this paper.