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題 名 | 利用砂箱模型評估休耕農田以砂樁補注地下水效益=Benefit Evaluation of Sand Piles in Fallow Croplands on Groundwater Recharge using Sand Tank Model |
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作 者 | 葉一隆; 陳智謀; 曾煜瑋; | 書刊名 | 農業工程學報 |
卷 期 | 49:3 2003.09[民92.09] |
頁 次 | 頁71-78 |
分類號 | 443.67 |
關鍵詞 | 砂箱模型; 休耕農田; 砂樁; 地下水補注; 基本入滲率; Sand tank model; Fallow croplands; Sand piles; Groundwater recharge; Basic intake rate; |
語 文 | 中文(Chinese) |
中文摘要 | 地下水補注為水田功能之一,但牛踏層會阻礙水分之入滲。本文利用砂箱模擬休耕水田蓄水,以評估砂樁對地下水補注之效益,並分析是否穿破牛踏層對地下水補注之影響。由實驗結果顯示,若以未植入砂樁之基本入滲率為背景值,則植入一支、三支與五支砂樁且砂樁未貫穿牛踏層之基本入滲率分別為背景值之2.33、4.80與5.24倍。植入五支砂樁而有一支、三支與五支砂樁貫穿牛踏層之基本入滲率分別為背景值之5.82、7.93與9.25倍。而為考慮田區恢復耕作時之湛水功能,將砂樁與周圍的土壤混合,以模擬田區翻耕作用,由試驗結果得其基本入滲率為背景值 0.33 倍,顯示田區翻耕後可迅速恢復水田之湛水功能。 |
英文摘要 | Groundwater recharge is one of the functions of paddy field. However, the hard pan will obstruct moisture infiltration. The sand tank model was used to simulate water storage in fallow paddy field for evaluating the efficiency of sand piles on groundwater recharge. The effects of sand pile pierce through hard pan on groundwater recharge was also discussed in this paper. The result shows that the basic intake rate of one, three and five sand piles which were not pierced through hard pan is 2.33, 4.80 and 5.24 times of unset sand pile on field, respectively. While one, three and five sand piles were pierced through hard pan among five sand piles has 5.82, 7.93 and 9.25 times basic intake rate of unset sand pile on field, respectively. Sand and soil mixed to recover the function of storage water of paddy field. The result shows that the mixed soil has 0.33 times basic intake rate of background value. The experiment shows that the mixed soil can quickly recover storage water function of paddy field. |
本系統中英文摘要資訊取自各篇刊載內容。