| 摘要: | 為了瞭解溫泉資源使用狀況，以達永續利用之目的，水位及水溫之長期監測實屬必要。本研究對於瑞穗地區的四個監測站，於監測站中置入儀器觀測其水位與水溫的變化，建立水位與水溫以及水質的趨勢圖。
截至2017年底之數據，可以得知降雨量與水位有呈現正比的關係，即降雨量增加，水位就會上升。而以2017年對照2016年的觀測結果，四口監測井的水位皆有下降的趨勢。2017年相對於2016年的年均水位比較，1號井下降0.45m，2號井下降5.40m，3號井下降5.81m，4號井下降3.90m。
在單點監測方面，1號井(深度15m)，2號井(深度85m)，3號井(深度56.7m)，4號井(深度30m)，大量降雨時會造成水溫的下降。
在垂直井溫方面，2017年10月份的觀測結果1號井井下10m處的溫度約25℃，井下30m處的溫度約55℃，上升了30℃。2號井井下60m處的溫度約31℃，井下80m處的溫度約30℃。3號井井下40m處的溫度約25℃，井下160m處的溫度約50℃，上升了25℃。4號井井下20m處的溫度約25℃，井下140m處的溫度約40℃，上升了15℃。
在導電度方面，每季測量一次，1號井的導電度介於1090~1306 uS/cm之間，無明顯變化，2、3、4號井在不同季節，導電度值差異很大，下降的原因可能為冷的地下水混進來所致。而PH值方面變化較不明顯。
In order to understand the status of the use of hot spring resources and to achieve sustainable use, the long-term monitoring of water levels and water temperatures is necessary. In this study, for four monitoring stations in Ruisui region, instruments were placed in the monitoring station to observe the changes in water level and water temperature, and a trend chart of water level, water temperature, and water quality was established.
As of the end of 2017, it can be seen that there is a positive relationship between rainfall and water level, that is, as the rainfall increases, the water level rises. According to the observations of 2017 in 2016, the water levels of all four monitoring wells have declined. Compared with the annual average water level in 2016, the number of well No. 1 has decreased by 0.45m, that of No. 2 well has decreased by 5.40m, that of No. 3 well has decreased by 5.81m, and No. 4 well has decreased by 3.90m.
In terms of single-point monitoring, Well No. 1 (depth 15m), Well No. 2 (depth 85m), Well No. 3 (depth 56.7m), Well No. 4 (depth 30m) will cause water temperature to drop during heavy rainfall.
In terms of vertical well temperature, the observed temperature in October 2017 was about 25°C at 10m below Well No.1, and about 30?C at 30m below the well, which was an increase of 30°C. The temperature at 60m below Well No. 2 is about 31°C, and the temperature at 80m downhole is about 30°C. The temperature at 40m below the No. 3 well is about 25°C, and the temperature at 160m underground is about 50°C, which is an increase of 25°C. The temperature at the 20m below the No. 4 well is about 25°C, and the temperature at the well 140m is about 40°C, an increase of 15°C.
In terms of conductivity, the conductivity of Well No. 1 is between 1090 and 1306 uS/cm, with no significant change. Wells 2, 3, and 4 have different electrical conductivity values in different seasons. The reason may be caused by the mixing of cold groundwater. The change in PH value is less obvious. |
