地表處理對土壤飽和力傳導度之影響

Design Hyetographs of Different Durations at Shanping Area of Southern Taiwan

林俐玲(Li-Ling Lin) ； 王永琦(Yung-Chi Wang) ； 蔡義誌(Yi-Zhin Tsai)

《坡地防災學報》 3卷1期 (2004/06) Pp. 29-37

https://doi.org/10.29995/JSHR.200406.0003

摘要

台灣之山坡地常因開發之工程而破壞原有之地貌、土壤結構，造成邊坡之不穩定。本文主在探討不同地表處理下水力傳導度之變化，實驗地點鄰近台中大坑山區，三種地表處理分別為草地、林地、施工地，三區之地質性質、土壤性質、坡度、坡向皆相同。本實驗主要是以Guelph滲透計分別進行試驗調查。結果顯示，施工地區之土壤水力傳導度均大於有植生覆蓋之地區，顯示地面一經擾動會破壞其結構，導致其水力傳導度變大。

關鍵字

草地 ； 林地 ； 施工地 ； Guelph滲透計

並列摘要

The topography and soil structure on slopeland were usually destroyed by developing engineering, which would result in unstable of hillslope. Objective of this study is investigating the variation of hydraulic conductivity under different soil surface utilization. The study area is located in Da-keng, Taichung. Three treatments are grassland, forestland and construction site. The geology, soil properties, slope, and aspect are almost the same in these three sites. Guelph permeameter was used to measure field saturated hydraulic conductivity. The results indicated that, the construction site has highest field saturated hydraulic conductivity. The soil structure has been destroyed in the construction site, which resulted in the high infiltration.

並列關鍵字

Grassland ； Forestland ； Construction site ； Guelph premeameter