Effect of Wildfire on Soil-Water Characteristics of Natural Slope Containing Temperature Sensitive Silica-alumina Polymorph Minerals

Wildfires increased hillslopes erosion and surface runoff. The effect increased by several magnitudes when subjected to high intensity of precipitation during prolonged rainy seasons. The changes in geotechnical properties of soils affected by wildfire may jeopardize the stability of the slopes. In...

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Main Authors:	Mohd Yuhyi, Mohd Tadza, Anis Ayesha, Noraini
Format:	Article
Language:	English
Published:	AENSI Publishing 2016
Subjects:	TA Engineering (General). Civil engineering (General)
Online Access:	http://umpir.ump.edu.my/id/eprint/17303/ http://umpir.ump.edu.my/id/eprint/17303/ http://umpir.ump.edu.my/id/eprint/17303/1/fkasa-2016-yuhyi-Effect%20of%20Wildfire%20on%20Soil-Water.pdf

id	ump-17303
recordtype	eprints
spelling	ump-173032017-08-16T08:14:25Z http://umpir.ump.edu.my/id/eprint/17303/ Effect of Wildfire on Soil-Water Characteristics of Natural Slope Containing Temperature Sensitive Silica-alumina Polymorph Minerals Mohd Yuhyi, Mohd Tadza Anis Ayesha, Noraini TA Engineering (General). Civil engineering (General) Wildfires increased hillslopes erosion and surface runoff. The effect increased by several magnitudes when subjected to high intensity of precipitation during prolonged rainy seasons. The changes in geotechnical properties of soils affected by wildfire may jeopardize the stability of the slopes. In this study, soil specimens containing thermal sensitive nesosilicate polymorphs undergone wildfire and non-exposed to fire were collected and tested in order to understand the changes to the geotechnical properties and water retention behavior. Similarly, the changes to the slope were monitored up to a period of 270 days. The suction-water content soil water characteristic curves (SWCCs) were established for the soils using a chilled mirror dew-point hygrometer. In addition, the changes in the mineral compositions were also evaluated using X-ray diffraction analysis. Test results indicated that, the plasticity characteristics of the soils decreased after being burned. Concurrent to the decreased in the plasticity, the suction-water content established for soil exposed to wildfire was found to be slightly lower than that of unburned soils for suction lower than 1.5 MPa. Nesosilicates was found to be completely altered and affected by fire, whereas quartz minerals were found to be unaffected. Erosion occurred on-site was found to be attributed to reduction in the plasticity characteristics and changes to the overall mineral structure of the soil. Furthermore, the removal of vegetation as affected by fire reduced the slope surface cover and caused erosion of the slope to occur. AENSI Publishing 2016 Article PeerReviewed application/pdf en cc_by http://umpir.ump.edu.my/id/eprint/17303/1/fkasa-2016-yuhyi-Effect%20of%20Wildfire%20on%20Soil-Water.pdf Mohd Yuhyi, Mohd Tadza and Anis Ayesha, Noraini (2016) Effect of Wildfire on Soil-Water Characteristics of Natural Slope Containing Temperature Sensitive Silica-alumina Polymorph Minerals. Australian Journal of Basic and Applied Sciences, 10 (17 Sp.). pp. 157-163. ISSN 1991-8178 http://www.ajbasweb.com/old/ajbas/2016/Special%20ICCEIB/157-163.pdf
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	TA Engineering (General). Civil engineering (General)
spellingShingle	TA Engineering (General). Civil engineering (General) Mohd Yuhyi, Mohd Tadza Anis Ayesha, Noraini Effect of Wildfire on Soil-Water Characteristics of Natural Slope Containing Temperature Sensitive Silica-alumina Polymorph Minerals
description	Wildfires increased hillslopes erosion and surface runoff. The effect increased by several magnitudes when subjected to high intensity of precipitation during prolonged rainy seasons. The changes in geotechnical properties of soils affected by wildfire may jeopardize the stability of the slopes. In this study, soil specimens containing thermal sensitive nesosilicate polymorphs undergone wildfire and non-exposed to fire were collected and tested in order to understand the changes to the geotechnical properties and water retention behavior. Similarly, the changes to the slope were monitored up to a period of 270 days. The suction-water content soil water characteristic curves (SWCCs) were established for the soils using a chilled mirror dew-point hygrometer. In addition, the changes in the mineral compositions were also evaluated using X-ray diffraction analysis. Test results indicated that, the plasticity characteristics of the soils decreased after being burned. Concurrent to the decreased in the plasticity, the suction-water content established for soil exposed to wildfire was found to be slightly lower than that of unburned soils for suction lower than 1.5 MPa. Nesosilicates was found to be completely altered and affected by fire, whereas quartz minerals were found to be unaffected. Erosion occurred on-site was found to be attributed to reduction in the plasticity characteristics and changes to the overall mineral structure of the soil. Furthermore, the removal of vegetation as affected by fire reduced the slope surface cover and caused erosion of the slope to occur.
format	Article
author	Mohd Yuhyi, Mohd Tadza Anis Ayesha, Noraini
author_facet	Mohd Yuhyi, Mohd Tadza Anis Ayesha, Noraini
author_sort	Mohd Yuhyi, Mohd Tadza
title	Effect of Wildfire on Soil-Water Characteristics of Natural Slope Containing Temperature Sensitive Silica-alumina Polymorph Minerals
title_short	Effect of Wildfire on Soil-Water Characteristics of Natural Slope Containing Temperature Sensitive Silica-alumina Polymorph Minerals
title_full	Effect of Wildfire on Soil-Water Characteristics of Natural Slope Containing Temperature Sensitive Silica-alumina Polymorph Minerals
title_fullStr	Effect of Wildfire on Soil-Water Characteristics of Natural Slope Containing Temperature Sensitive Silica-alumina Polymorph Minerals
title_full_unstemmed	Effect of Wildfire on Soil-Water Characteristics of Natural Slope Containing Temperature Sensitive Silica-alumina Polymorph Minerals
title_sort	effect of wildfire on soil-water characteristics of natural slope containing temperature sensitive silica-alumina polymorph minerals
publisher	AENSI Publishing
publishDate	2016
url	http://umpir.ump.edu.my/id/eprint/17303/ http://umpir.ump.edu.my/id/eprint/17303/ http://umpir.ump.edu.my/id/eprint/17303/1/fkasa-2016-yuhyi-Effect%20of%20Wildfire%20on%20Soil-Water.pdf
first_indexed	2023-09-18T22:23:47Z
last_indexed	2023-09-18T22:23:47Z
_version_	1777415831323410432

Effect of Wildfire on Soil-Water Characteristics of Natural Slope Containing Temperature Sensitive Silica-alumina Polymorph Minerals

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