查詢結果分析
來源資料
頁籤選單縮合
題 名 | 疏伐與修枝對臺灣杉人工林土壤沖蝕之影響 |
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作 者 | 李錦育; | 書刊名 | 國立屏東技術學院學報 |
卷 期 | 4 1995.06[民84.06] |
頁 次 | 頁181-191 |
分類號 | 434.227 |
關鍵詞 | 疏伐; 修枝; 臺灣杉人工林; 土壤沖蝕; Thinning; Pruning; Taiwania plantation; Soil erosion; |
語 文 | 中文(Chinese) |
中文摘要 | 在 1990 年 7 月至 1994 年 2 月間,調查六龜地區臺灣杉人工林土壤沖蝕相關 因子(諸如:土壤質地、植生覆蓋率、枯枝落葉量、相對光度等),分析不同作業方式對土 壤流失量之影響;發現第三林班(疏伐後八年之林分),雖然地表植生覆蓋低於 10%,仍呈 堆積的現象;而第十二林班(剛疏伐之林分)在第一年剛疏伐時有土壤沖蝕量產生,但經過 一年後各試區呈堆積現象。若地表有 50% 以上的植生覆蓋,則可減緩土壤之沖蝕量。 |
英文摘要 | This study is concerned with the relationships among soil erosion factors (i.e. soil texture, vegetation cover, litters, relative light intensity, etc.), analyses various operation type as effect on soil erosion and deduce that of Taiwania (Taiwania cryptomerioides) plantations Lu-Kuei area. With data collected from Jul. 1990 to Feb.1994, the following facts were found: After the stand was thinned (third compartment, since eight years observation period), although vegetaion cover less than 10%, which reflects sedimentation phenomena of plot. It is one year since soil erosion of 12th compartment reduced quickly. If vegetation cover exceeded by 50%, soil erosion will reduced slowly. |
本系統中英文摘要資訊取自各篇刊載內容。