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頁籤選單縮合
題 名 | 屏東平原地下水鹽化趨勢之比較與推估=Evaluation and Estimation of Groundwater Salinization Trend in Ping-Tung Plain |
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作 者 | 詹益璋; 林裕彬; 譚義績; | 書刊名 | 農業工程學報 |
卷 期 | 48:3 2002.09[民91.09] |
頁 次 | 頁10-18 |
分類號 | 443.67 |
關鍵詞 | 地下水鹽化; 指標克利金; 電導度; 總溶解固體; Groundwater saltization; Indicator kriging; Electric conductivity; Total dissolved solids; |
語 文 | 中文(Chinese) |
中文摘要 | 近年來屏東地區地下水相關研究皆指出,其地下水鹽化似有由沿海向內陸蔓延之趨勢,須進一步加以分析並推估其空間分佈趨勢,以利後續污染範圍界定與整治之參考之必要。因此,本研究採用經濟部水資源局1996與1999年地下水資料,並參酌環保署飲用水水源水質標準規定,分別以總溶解固體(TDS)=1000 mg/l、電導度(EC值)=700-750 µs/cm 為地下水鹽化之門檻值,應用指標克利金估計1996及1999年大於此二門檻值之機率空間分佈,並比較此二年之估計結果。研究結果顯示,以1996與1999年之現況檢測比較得知兩年地下水鹽化空間分佈趨勢與方向大致相符,其主要由沿海向內陸遞增呈東北—西南向。由1996及1999年指標克利金機率圖得知與證實,屏東平原地下水鹽化面積逐年擴大,有沿海向內陸發展之趨勢。 |
英文摘要 | Recent groundwater studies indicated that the groundwater quality has been salted from the coastal area to the inside part of Ping-tung Plain. The areas of salted groundwater need to be delineated for further groundwater management and remediation. This study used 1996 and 1999 groundwater quality data collected from Water Resources Bureau. According to the EPA requirements of drinking water, the concentrations of TDS (Total dissolved solids) and EC (Electric conductivity) are 1000 mg/l and 700-750 μs/cm as the thresholds for indicator kriging to delineate the groundwater saltization area. The 1996 and 1999 probability maps estimated by indicator kriging based thresholds were compared in this study. The results illustrated that the spatial tendencies of groundwater saltization, from northeast to southwest, were same in 1996 and 1999. Moreover, the results confirmed that the salted areas of groundwater quality gradually increased from the coast to the inside part of Pin-tung Plain. |
本系統中英文摘要資訊取自各篇刊載內容。