頁籤選單縮合
題 名 | 人工補注對地下水丘之影響研究=The Study of Artificial Recharge Influence on Water Mound |
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作 者 | 林允斌; 譚義績; 蔡存孝; 童慶斌; 彭宗仁; | 書刊名 | 農業工程學報 |
卷 期 | 42:4 1996.12[民85.12] |
頁 次 | 頁28-40 |
分類號 | 351.85 |
關鍵詞 | 人工補注; 地下水丘; 擴散影響; Artificial recharge; Water mound; Diffusion effect; |
語 文 | 中文(Chinese) |
中文摘要 | 考慮廣大區域的地下水補注時多半利用水平衡的觀念做為地下水補注水丘剖面演算之依據,但對於局部地區地下水補注水丘之演算,則必須考慮地表均勻入滲因連續方程式中擴散項的影響,此控制項導致入滲速率不均,進而影響地下水丘之形成。 影響地下水入滲的原因除最重要的覆蓋土壤物理性質外,例如土壤的結構疏鬆、水力傳導係數、飽和度等因子外,還必須考慮地下水位的深淺及地表蒸發散的問題,本研究即針對後兩項因子模擬其對地下水補注造成之影響。 本研究利用簡化之線性化控制方程式及透過疊加的方式,模擬擴散項之影響,並考慮地表蒸發散與地下水位高度等因子,針對地下水丘形成的狀態將模擬結果與MODFLOW的結果相互比較驗證。 |
英文摘要 | The concept of water budget is often used to calculate water mound profile in wide area recharge. It is necessary to consider the diffusion effect of the uniform surface infiltration while in local-wise water mound calculation. The diffusion effect cause the non-uniform percolation velocity and the formation of water mound. Besides the most important factor of covered soil physical property in considering of infiltration, soil structure, hydraulic conductivity and saturation, it is necessary to consider the factors of water table elevation and evapotranspiration. This study simulates the influence of two later factors on recharge. Simplified linear governing equations and superposition are used to simulate the effect of the diffusion. The results of MODFLOW in factors of evapotranspiration and water table elevation are used to verify the study. |
本系統中英文摘要資訊取自各篇刊載內容。