頁籤選單縮合
題 名 | 應用氫氧穩定同位素分析地下水補注之研究=A Study on Groundwater Recharge by Hydrogen and Oxygen Stable Isotopes |
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作 者 | 簡銘成; 杜永昌; 汪中和; 丁澈士; | 書刊名 | 農業工程學報 |
卷 期 | 57:3 2011.09[民100.09] |
頁 次 | 頁61-74 |
分類號 | 443.67 |
關鍵詞 | 林邊溪; 地下水補注; 地下水流向; 氫氧穩定同位素; Lin Bian River; Groundwater recharge; Groundwater flow direction; Hydrogen and oxygen stable isotopes; |
語 文 | 中文(Chinese) |
中文摘要 | 本研究目的為應用氫氧穩定同位素分析林邊溪流域之地下水各補注來源比例,並推估 2006年林邊溪流域之地下水總補注量。研究結果顯示林邊溪流域 2006年之地下水年補注量約為 4.6億立方公尺,年抽水量與流失量總合約為 4.1億立方公尺,除部份沿海地區外,整體來說未超抽。林邊溪流域之地下水補注源經由氫氧同位素質量平衡分析後,發現受降雨直接補注的比例,以含水層 F1最高(δ18O = 16%、δD = 19%),含水層 F3最低(δ18O = 9%、δD = 7%);受山區側向補注之比例以含水層 F3最高(δ18O = 91%、δD = 93%),含水層 F1最低(δ18O = 84%、δD = 81%),顯示林邊溪流域深層含水層之地下水補注受山區河水之補注效應較明顯,而在淺層含水層則是以降雨直接補注較明顯。 |
英文摘要 | The purposes of this research are to analyze the correlation of the compositions of hydrogen and oxygen stable isotopes in groundwater recharge sources; and then to estimate the total groundwater recharge amount in Lin Bian River basin as well as its flow direction for the year 2006. The annual groundwater recharge amount in Lin Bian River basin is estimated as about 460 Mm3 in 2006. The total annual water extraction amount with the water loss is estimated as ca. 410 Mm3; thus, these two parameters are within the extraction allowance, except for some coastal areas. According to the hydrogen and oxygen isotopic mass balance analyses of the groundwater recharge sources in Lin Bian River basin, the Aquifer F1 has the highest (δ18O = 16%、δD = 19%) and Aquifer F3 has the lowest (δ18O = 9%、δD = 7%) proportions of rainfall recharge, respectively. On the other hand, Aquifer F3 has the highest (δ18O = 91.3%、δD = 93%) and Aquifer F1 carries the lowest (δ18O = 84%、δD = 81%) proportions of lateral recharge from the mountain area, respectively. These results show that the groundwater for the deeper aquifer of Lin Bian River area has relatively higher recharge from the mountain river, while in the shallower aquifer the rainfall recharge is the dominant factor. |
本系統中英文摘要資訊取自各篇刊載內容。