查詢結果分析
來源資料
頁籤選單縮合
題 名 | 山坡地水稻梯田之水土保育功能初探=The Preliminary Study on the Soil and Water Conservation Function of Rice-terrace on Slopeland |
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作 者 | 陳世楷; 黃漢誠; 鄭世尉; 劉振宇; | 書刊名 | 農業工程學報 |
卷 期 | 47:1 2001.03[民90.03] |
頁 次 | 頁1-11 |
分類號 | 434.273 |
關鍵詞 | 水稻梯田; 滲流; 保育; Rice-terrace; Seepage; Conservation; |
語 文 | 中文(Chinese) |
中文摘要 | 水稻梯田除生產功能外,亦具有極佳之水土保育功能,如水源涵養、土壤保全、蓄水調洪及崩塌防止等各種公益功能。本文除闡明水稻梯田之築造及其水理分析外,並於新竹新埔地區之水稻梯田進行環境及土壤水分量測,藉以明瞭其滲流機制,及水土保持之功能。結果顯示經過一週暴雨之後,邊坡土壤水分仍呈非飽和狀態,顯示上部田區滲漏之水流並未到達下部田區以提供(暗)迴歸水之利用,但維護良好之邊坡且耕作中之水稻梯田卻提供了極佳之崩塌防治功能,本研究所得之水稻梯田特性資料若能配合驗證數學模式將能進一步瞭解水稻梯田滲流機制並提供作為相關單位進行水稻梯田保育工作之參考。 |
英文摘要 | Rice-terrace on slopeland exhibits many soil and water conservation functions such as water/soil preservation, flood/slope failure control, as well as rice production. The purposes of the study are the introduction of the typical layouts, in-situ measurements and the flow field analysis of rice-terrace. Field experiments are conducted in Hsuing-Pu, Hsuing-Chu. The experiments include the in-situ investigation of environment and the measurement of soil water content, which can help to assess the soil and water conservation functions of rice-terrace. The experimental results show that the seepage flow is under unsaturated condition within the bund even after one week's heavy rainfall. It reveals that the amount of invisible return flow is not large enough to move through the bund from upper field to lower field. However, the rice-terrace under well-maintained and cultivated conditions is helpful to soil and water conservation on slopeland. The data obtained from this study can be used to the numerical simulation which will help us to understand the detailed seepage processes of rice-terrace and can provide governmental agencies as a scientific basis to promulgate policies concerning the rice-terrace conservation. |
本系統中英文摘要資訊取自各篇刊載內容。