區域性地下水水質模擬監測井網監測頻率之初步研究

Preliminary Study on Combination of DRASTIC Model and the Sampling Frequency for Regional Groundwater Quality Monitoring

丁澈士(Cheh-Shyh Ting) ； 甘東富(Tung-Fu Kan)

《農業工程學報》 51卷1期 (2005/03) Pp. 57-68

https://doi.org/10.29974/JTAE.200503.0006

摘要

本研究係以地下水水流模式為基礎，採用DRASTIC地下水污染潛勢評估方法，針對屏東平原地區進行地下水污染潛勢進行評估。並配合Processing MODFLOW中MT3D模組建置地下水污染物之移流模式，模擬五年內於地下水水質虛擬監測井中濃度分佈趨勢。前述資料取得後，引入FREQ程式中分析，並擬定最佳之監測頻率。
一般風險及農業風險分析結果以內埔、美濃、旗山、竹田及萬丹等區域具最高之污染潛勢。崁頂與新埤最低，其中崁頂為兩項分析之重疊區域。地下水水質虛擬監測井之監測頻率，由七口井獲得其最佳之監測取樣頻率為每月一次。

關鍵字

污染潛勢 ； 移流 ； 監測頻率 ； 地下水質

並列摘要

The study was based on a groundwater flow model. The paper has been estimated the groundwater potential pollution in Pingtung Plain with the DRASTIC model. A transport model with MT3D of Processing Modflow has been created to offer the suitable information. The model has been simulated a solute advective process for five years. The concentration information is found by seven observation wells in it. Then the output data would offer FREQ software to estimate the best sampling frequency for monitoring wells.
In the results of general and agricultural rank estimation, the highest potential pollution was pointed at Neipu. Meinung. Chishan, Chutien, and Wanluan. The lowest were Kanting and Hsipei Kanting was the overlap of the two estimation results. The best sampling frequency of groundwater quality monitoring ells was one time per month.

並列關鍵字

Potential pollution ； Advection ； Monitoring frequency ； Groundwater quality