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題 名 | 紅壤可蝕性因子之量測=Erodibility Measurement for Red Soils |
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作 者 | 林俐玲; 林文弘; | 書刊名 | 水土保持學報 |
卷 期 | 30:1 1998.03[民87.03] |
頁 次 | 頁41-58 |
分類號 | 434.227 |
關鍵詞 | 紅壤; 可蝕性因子; 人工降雨; 線解圖; 幾何平均粒徑; Red soil; Erodibility factor; Rainfall simulation nomograph; Geometric average mean diameter; |
語 文 | 中文(Chinese) |
中文摘要 | 本研究採用臺灣中部地區具有代表性的紅壤來作人工模擬降雨試驗,實際量測其 土壤可蝕性因子( K ), 同時並與目前通用的線解圖解法以及幾何平均粒徑迴歸式來做比 較。實驗結果顯示由線解圖解法所求得之 K 值與實測 K 值,有較高之相關性。幾何平均粒 徑法僅就土壤質地來考量,因此在過程上較不嚴謹,忽略了土壤本身的有機質含量、結構和 滲透等因子。運用人工模擬降雨設施來進行土壤可蝕性因子之研究,為一個有效的方式,若 能夠根據歷年紀錄在降雨強度以及降雨延時上多方考量,當可得到更理想的結果。 |
英文摘要 | The purpose of this experiment uses a rainfall simulator to predict the soil erodibility of several kinds of red soils in the central Taiwan. Nomograph and geometric mean particle diameter were also applied to estimate the soil erodibility. The soil erodibility ( Knom ) values estimated by the nomograph correlates highly with those from the experiment ( Kobs ).Geometric mean particle diameter method only consider the soil texture. It doesn't concern the organic matter content, soil structure and profile permeability. The soil erodibility ( Kgeo ) predicted by this method is not so reliable as nomographh method. It's effective to predict soil erodibility by rainfall simulator. By collecting more information to deterimine the rainfall intensity and the duration in the experiment, better results can be obtained. |
本系統中英文摘要資訊取自各篇刊載內容。