Study onthe Hydraulic Conductivity Properties of Unsaturated Forest Soilin Lienhwachi Area
碩士 === 國立臺灣大學 === 森林學研究所 === 92 === This study applied on the hydraulic conductivity of the unsaturated forest soil in the Lien-Hwa-Chi area, and compared the deviation in hydraulic conductivity among different locations and depths. It’s helpful to understand the effective of water contain, soil...
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ndltd-TW-092NTU053600492016-06-10T04:16:00Z http://ndltd.ncl.edu.tw/handle/87520684977187308395 Study onthe Hydraulic Conductivity Properties of Unsaturated Forest Soilin Lienhwachi Area 蓮華池林地未飽和土壤水力傳導度特性之研究 Juhui Huang 黃襦慧 碩士 國立臺灣大學 森林學研究所 92 This study applied on the hydraulic conductivity of the unsaturated forest soil in the Lien-Hwa-Chi area, and compared the deviation in hydraulic conductivity among different locations and depths. It’s helpful to understand the effective of water contain, soil pores, rough pores and roots of plants. The study area was located on the eastern slope in Lienhwachi watershed No.5. Measure the forest soil saturated hydraulic conductivity in different gradient, and choose 4 points, 3 depths on ridge, hillslope and valley. The study used the Tension Infiltrometer to measure the hydraulic conductivity and excavated undisturbed soil for physical test. It could tell the effectives of hydraulic conductivity by compared both of the results. These results show that there was no deviation in hydraulic conductivity among different locations but depths. The surface soil is loose and the pores are less in deeper soil, so the hydraulic conductivity becomes smaller within the increasing of depth. The hydraulic conductivity decrease if part of soil pores filled with air, and the gradient become smaller. This situation usually happened in the surface soil. There was no significant difference in deeper soil because the water movement here depended on micro pores. Ming-chieh Chen 陳明杰 2004 學位論文 ; thesis 70 zh-TW |
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碩士 === 國立臺灣大學 === 森林學研究所 === 92 === This study applied on the hydraulic conductivity of the unsaturated forest soil in the Lien-Hwa-Chi area, and compared the deviation in hydraulic conductivity among different locations and depths. It’s helpful to understand the effective of water contain, soil pores, rough pores and roots of plants.
The study area was located on the eastern slope in Lienhwachi watershed No.5. Measure the forest soil saturated hydraulic conductivity in different gradient, and choose 4 points, 3 depths on ridge, hillslope and valley. The study used the Tension Infiltrometer to measure the hydraulic conductivity and excavated undisturbed soil for physical test. It could tell the effectives of hydraulic conductivity by compared both of the results.
These results show that there was no deviation in hydraulic conductivity among different locations but depths. The surface soil is loose and the pores are less in deeper soil, so the hydraulic conductivity becomes smaller within the increasing of depth.
The hydraulic conductivity decrease if part of soil pores filled with air, and the gradient become smaller. This situation usually happened in the surface soil. There was no significant difference in deeper soil because the water movement here depended on micro pores.
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author2 |
Ming-chieh Chen |
author_facet |
Ming-chieh Chen Juhui Huang 黃襦慧 |
author |
Juhui Huang 黃襦慧 |
spellingShingle |
Juhui Huang 黃襦慧 Study onthe Hydraulic Conductivity Properties of Unsaturated Forest Soilin Lienhwachi Area |
author_sort |
Juhui Huang |
title |
Study onthe Hydraulic Conductivity Properties of Unsaturated Forest Soilin Lienhwachi Area |
title_short |
Study onthe Hydraulic Conductivity Properties of Unsaturated Forest Soilin Lienhwachi Area |
title_full |
Study onthe Hydraulic Conductivity Properties of Unsaturated Forest Soilin Lienhwachi Area |
title_fullStr |
Study onthe Hydraulic Conductivity Properties of Unsaturated Forest Soilin Lienhwachi Area |
title_full_unstemmed |
Study onthe Hydraulic Conductivity Properties of Unsaturated Forest Soilin Lienhwachi Area |
title_sort |
study onthe hydraulic conductivity properties of unsaturated forest soilin lienhwachi area |
publishDate |
2004 |
url |
http://ndltd.ncl.edu.tw/handle/87520684977187308395 |
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