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題名 | 蘭陽地區地下水天然補注影響時間之研究 |
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作者姓名(中文) | 黃賢統; | 書刊名 | 宜蘭農工學報 |
卷期 | 3 1991.08[民80.08] |
頁次 | 頁151-166 |
分類號 | 443.67 |
關鍵詞 | 天然; 地下水; 時間; 補注; 蘭陽地區; |
語文 | 中文(Chinese) |
中文摘要 | 地下水之天然補注主要係來自于降雨或地面水之入滲,補注時間之長短,直接影響 補注量及安全出水量,故補注時間之推算,乃研究地下水開發重要的課題之一。蘭陽平原三 面環山東臨太平洋,就地下水文而言,形成一地下盆地,但也因而得以迅速接受來自山麓區 之降雨與平原內河川之入滲及涵養,同時由于其含水層係由沖積臺地與沖積平原所構成,故 透水性極為良好,係本省最佳的含水層之一。本文根據民國74年7月至民國79年12月間,礁 溪自記觀測井之日平均水位歷線與其附近之五峰雨量站日雨量變化線,相互對照,選取兩者 關係較為顯著之數據樣本分別計算各水位稽延時間之相關係數,並將諸最大相關係數之稽延 時間平均值,代表本地區含水層之補注影響時間,數據顯示,補注時間最長者為3天,最短 者為2天,平均值為2.52天,可見本地區地下水補注容易而便捷,但因河川流短而坡陡,大部 份降雨均流入海洋,無法利用,殊為可惜。由本文之研究結果可知本地區含水層具有甚佳之 補充能力,本研究可作為以水文平衡公式決定天然補注量以及安全出水量重要之參數,並進 而作為未來規劃本地區人工補注之參考,以謀求本地區地下水資源利用之永續不絕。 |
英文摘要 | In most situations, acquifers are to be recharged naturally by rainfall and surfce water infiltration. The time interual of recharging influence natural recharge yield and safe yield. Therefore the esfimate of the fime is an important project for studying management of ground water. Lan Yan plain is beside the Pacific Ocean on the east side and surrounded by mountains on the rest. In groundwater hydrology, it is just like a underground basin. Therefor it can be supplied easily by rainfalls and rivers. This acquifer, one of the best in Taiwan composed of deposit tableland and plain, have a good characteristic of infiltrating. This report is according to the daily averege ground water hydrograph of Jau-Shi auto recording observating well refering to the graph of daily rainfall of Wu-Fon rainfall station. From July 1985 to Dec. 1990. The larger figures of correlation were picked up and their coefficients of correlation for each time lag were analyzed by using regression analysis. Then the means of every maximum coefficient were be taken as the time inteval of recharge in this area. The results show that the values of intervals is between 2 and 3 days, while the mean valus is 2.52 days. It is obvious that the recharge of this area is easy and quick. However, the rivers are short and steep in this area, so a large portion of rainfall flowing into the ocean can not be used. That is quite regretful. This paper shows that the acquifer of this area is in good condition and easy to be recharged. And the results of analysis can be taken as an important parameter to decide natural recharge and safe yield by means of the equation of hydrologic eguilibrium. The report is also a reference for planing atificial recharge of this area in the future in order to protect and preserve ground water resources forever. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。