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題 名 | 土壤沖蝕的量測方法=Methods of Soil Erosion Measurement |
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作 者 | 李建堂; | 書刊名 | 國立臺灣大學理學院地理學系地理學報 |
卷 期 | 23 1997.11[民86.11] |
頁 次 | 頁89-106 |
分類號 | 434.227 |
關鍵詞 | 土壤沖蝕; 實驗區法; 輸砂量法; 沖積物預算法; 沖蝕針; 沖蝕預估模式; Soil erosion; Plot study; Sediment yield; Sediment budget; Erosion pin; Erosion model; |
語 文 | 中文(Chinese) |
中文摘要 | 在過去數十年間已發展出許多量測土壤沖蝕的方法,然而每種量測方法有其優點和缺點,以及適合於不同時、空尺度下的特定應用。不同量測方法所預估的土壤沖蝕量,差距有時達數倍之多。因此,在研究土壤沖蝕時,如何選擇一適當的量測方法是非常重要。風和水為造成土壤沖蝕的兩大主要營力,由於臺灣屬濕潤氣候,以降雨所形成的土壤沖蝕較為嚴重,因此本文主要探討由流水作用所造成土壤沖蝕的量測方法。文中將土壤沖蝕之量測方法分成直接量測方法、間接量測方法及沖蝕預估模式三大類,詳細探討每一類型中常用來量測土壤沖蝕方法的優、缺點,以及其適用之時、空尺度。 |
英文摘要 | Numerious methods for soil eroison measurement have been developed during the past decades. However, each method has its advantages and disadvantages for a particular application at different scales. Soil loss estimates using different techniques commonly vary by an order of magnitude. Thus, to choose a proper method for erosion measurement is essentially important to all erosion studies. Various techniques for assessing water erosion are reviewed under three categories: direct methods, indirect methods and erosion models. Common approaches used for erosion measurement within each category are discussed in detail in relation to their advantages, disadvantages and the applications for appropriate temporal and spatial scales. |
本系統中英文摘要資訊取自各篇刊載內容。