本研究主要探討金崙地區溫泉資源之成因、地下水補注區範圍、地下水補注量、溫泉可用水量、地層溫度及地下流場情況。藉由地表與地下水文地質調查、現地踏勘、地表河川流量分析與地球物理探勘等方法，推估金崙地區溫泉成因、地下水補注區範圍、地下水補注量和溫泉可用水量，並利用TOUHGH2模式模擬研究區之地溫、地下水流場與熱流場情況。
分析結果顯示：金崙溫泉為高山深谷所形成的靜水壓力差和異常的地溫梯度產生高溫地下水，天降水為金崙溫泉地區之地下水重要補注來源，且溫泉地下水補注與線型構造有重要關係。地下水補注區面積約為130平方公里，範圍略大於集水區。利用基流資料估計法和消退曲線位移法分析河川流量資料，求得金崙地區地下水年補注量為92-107百萬噸間，溫泉可用水量約為每年60-70萬噸。
利用TOUHGH2程式執行敏感度分析，發現地層中熱流與地下水流受到滲透係數、熱傳導係數和飽和層水力梯度影響較為明顯，且地下水流場受地溫梯度影響較水力梯度大。模擬結果指出研究區地層溫度分布和流場與地質破碎帶有高度關聯性，破碎帶之高透水係數使得其地下水流量值較其他地區大，亦會引導透水係數較小地區之地下水流往破碎帶移動，破碎帶有助於溫泉水流動。

The purpose of this paper is to provide a description and interpretation of the nature and occurrence of the hot spring in Jin-Lun area. The area and amount of groundwater recharge as well as the safety yield of thermal water is then estimated by collecting the information on surface geological investigation, analysis of stream flow records and geophysical mapping. By establishing Digital Terrain Model of Jin-Lun area, it indicated that groundwater recharge is mainly affected by major lineament structures. The area of groundwater recharge about 130 square kilometers is larger than that of water shed. By analyzing stream flow records accompanying with base-flow-record estimation and recession-curve displacement method, it indicated that the amount of groundwater recharge is in the range between 92 and 107 million ton/ year and of the safety yield of thermal water is between 600 and 700 thousand ton/year.
Results of sensitivity analysis showed that the effects of hydraulic conductivity, thermal conductivity and hydraulic gradient are the most significant factors. The mainly flow paths of hot spring is affected by high-permeability fracture zones which can give rise to large discharge of hot spring.

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