台灣中部崩塌地土壤水份滲透特性之研究

A Study of Soil Infiltration on Landslide Area in Central Taiwan

林俐玲(Li-Ling Lin) ； 黃國鋒(Kuo-Feng Huang)

《坡地防災學報》 10卷1期 (2011/06) Pp. 27-41

https://doi.org/10.29995/JSHR.201106.0003

摘要

本研究針對台灣中部地區實施打樁編柵工法之崩塌地，探討地表入滲情形與植被恢復的關係，依據區域代表性、行政區分、地理界限及地質年代等，而選擇八處樣區進行土壤採取分析工作，並以Guelph滲透計現場量測地表滲透情形。經試驗與統計分析結果得知，所選擇樣區之土壤質地以壤土及砂質壤土居多；而與土壤最終入滲率有顯著相關的因子為：總體密度、顆粒密度、團粒穩定度及孔隙率等；又土壤最初入滲率多呈現崩塌區大於未崩塌區，土壤有機質與孔隙率多呈崩塌區小於未崩塌區情形，顯示崩塌區土壤結構較為鬆散且不穩定，應予以水土保持處理或加強保護。

關鍵字

崩塌 ； 滲透計 ； 入滲 ； 孔隙率

並列摘要

The collapsing land problems concerning searching fracture, source treatments, bared slopland treatment and accumulate area treatment should be tackled in a soil and water conservation comprehensive way on the stage from 921 earthquake. The purposes are fixing rocks, improve slope stability and beneficial to vegetation growth. Stake and wattling is a simple and convenient method on a slope. Soil infiltration on landslide area was masured. According to coding of experiment site, administration area, geographical boundary, geologic scheme. Soil samples from 8 experiment sites were collected. Field soil infiltration of experiment using Guelph permeate meter. The experimental results indicated that :1. The result of soil analysis, Understanding the correlation factors of soil water, Such as bulk density, particle density, aggregation stability and porosity.2. The initial infiltration in collapsed area is greater than uncollapsed site. This result indicated that soil in collapsed area is unstable.3. The collapsed inside of site of soil organic matter and porosity are less then uncollapsed site.

並列關鍵字

Landslide ； Permeameter ； Infiltration ； Porosity