Tree water uptake and suction distribution on tropical residual soil slope

This paper present an exploration of soil matric suction effected by water uptake via tree root at toe of slope on various condition between wet condition (high rainfall) and dry condition (prolonged no rainfall). Matric suction generated by active root tree has substantial influence soil moisture c...

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Main Authors: Ishak, M. F., Sulaiman, F. F., Ali, N., Kassim, A.
Format: Conference or Workshop Item
Published: Institute of Physics Publishing 2016
Subjects:
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author Ishak, M. F.
Sulaiman, F. F.
Ali, N.
Kassim, A.
author_facet Ishak, M. F.
Sulaiman, F. F.
Ali, N.
Kassim, A.
author_sort Ishak, M. F.
collection ePrints
description This paper present an exploration of soil matric suction effected by water uptake via tree root at toe of slope on various condition between wet condition (high rainfall) and dry condition (prolonged no rainfall). Matric suction generated by active root tree has substantial influence soil moisture content on residual soil slope. A field monitoring was carried out to collect matric suction data at slope in two conditions; with a tree located at toe of slope and absent of a tree. The installations of instruments particularly at slope with tree at toe were placed within vicinity of the tree with certain depths and distances. The matric suction data from field monitoring was influence by the rainfall events that lead to the instability of soils slope. Analysis of soil matric suction distribution pattern indicates that the highest matric suction value was at shallower depth and proximity of tree. The matric suction profiles obtained from field monitoring are applied as an input data to develop soil matric suction contour. The effect of transpiration driven by active root zone generated matric suction on soil at vicinity of tree may create dry soil to increase soil shear strength.
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institution Universiti Teknologi Malaysia - ePrints
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spelling utm.eprints-734412017-11-23T04:17:45Z http://eprints.utm.my/73441/ Tree water uptake and suction distribution on tropical residual soil slope Ishak, M. F. Sulaiman, F. F. Ali, N. Kassim, A. TA Engineering (General). Civil engineering (General) This paper present an exploration of soil matric suction effected by water uptake via tree root at toe of slope on various condition between wet condition (high rainfall) and dry condition (prolonged no rainfall). Matric suction generated by active root tree has substantial influence soil moisture content on residual soil slope. A field monitoring was carried out to collect matric suction data at slope in two conditions; with a tree located at toe of slope and absent of a tree. The installations of instruments particularly at slope with tree at toe were placed within vicinity of the tree with certain depths and distances. The matric suction data from field monitoring was influence by the rainfall events that lead to the instability of soils slope. Analysis of soil matric suction distribution pattern indicates that the highest matric suction value was at shallower depth and proximity of tree. The matric suction profiles obtained from field monitoring are applied as an input data to develop soil matric suction contour. The effect of transpiration driven by active root zone generated matric suction on soil at vicinity of tree may create dry soil to increase soil shear strength. Institute of Physics Publishing 2016 Conference or Workshop Item PeerReviewed Ishak, M. F. and Sulaiman, F. F. and Ali, N. and Kassim, A. (2016) Tree water uptake and suction distribution on tropical residual soil slope. In: 3rd International Conference on Geological, Geographical, Aerospace and Earth Science, AeroEarth 2015, 26-27 Sept 2015, Jakarta, Indonesia. https://www.scopus.com/inward/record.uri?eid=2-s2.0-84960883861&doi=10.1088%2f1755-1315%2f30%2f1%2f012009&partnerID=40&md5=82ef73438edca54d06e7267b9200fa9b
spellingShingle TA Engineering (General). Civil engineering (General)
Ishak, M. F.
Sulaiman, F. F.
Ali, N.
Kassim, A.
Tree water uptake and suction distribution on tropical residual soil slope
title Tree water uptake and suction distribution on tropical residual soil slope
title_full Tree water uptake and suction distribution on tropical residual soil slope
title_fullStr Tree water uptake and suction distribution on tropical residual soil slope
title_full_unstemmed Tree water uptake and suction distribution on tropical residual soil slope
title_short Tree water uptake and suction distribution on tropical residual soil slope
title_sort tree water uptake and suction distribution on tropical residual soil slope
topic TA Engineering (General). Civil engineering (General)
work_keys_str_mv AT ishakmf treewateruptakeandsuctiondistributionontropicalresidualsoilslope
AT sulaimanff treewateruptakeandsuctiondistributionontropicalresidualsoilslope
AT alin treewateruptakeandsuctiondistributionontropicalresidualsoilslope
AT kassima treewateruptakeandsuctiondistributionontropicalresidualsoilslope