Effects of Logging on Streamwater Quality and Solute Input-Output Budgets in Small Watersheds in Peninsular Malaysia

The effects of selective logging on streamwater quality and solute budget s were investigated using three small catchments: C1, C2 and C3. After a three-year calibration period,Cl and C3 were logged using" unsupervised" and "supervised" logging methods respectively, whereas C...

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Bibliographic Details
Main Author:	Yusop, Zulkifli
Format:	Thesis
Language:	English English
Published:	1990
Subjects:	Logging - Environmental aspects - Case studies
Online Access:	http://psasir.upm.edu.my/id/eprint/8563/1/FSAS_1990_5_A.pdf
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id	my-upm-ir.8563
record_format	uketd_dc
spelling	my-upm-ir.85632012-05-07T04:46:23Z Effects of Logging on Streamwater Quality and Solute Input-Output Budgets in Small Watersheds in Peninsular Malaysia 1990 Yusop, Zulkifli The effects of selective logging on streamwater quality and solute budget s were investigated using three small catchments: C1, C2 and C3. After a three-year calibration period,Cl and C3 were logged using" unsupervised" and "supervised" logging methods respectively, whereas C2 was left as control. Several control measures were imposed in the supervised C3 but none in the unsupervised C1. During the calibration period the levels for most of the streamwater quality parameters measured were within the standards for potable water. The exceptions were colour, turbidity and iron.Significant increases in pH, specific electrical conductivity, hardness, suspended solids, alkalinity, turbidity, dissolved solids, silicate, calcium, iron,and sodium were recorded in the unsupervised C1. The levels for colour and nitrate were also elevated initially but recovered to background values within a year. In contrast, in the supervised C3, significant changes were detected only for hardness, magnesium and iron. The impact of logging was enhanced during the wet months especially for suspended solids, turbidity and iron. Logging - Environmental aspects - Case studies 1990 Thesis http://psasir.upm.edu.my/id/eprint/8563/ http://psasir.upm.edu.my/id/eprint/8563/1/FSAS_1990_5_A.pdf application/pdf en public masters Universiti Pertanian Malaysia Logging - Environmental aspects - Case studies Faculty of Environmental Studies English
institution	Universiti Putra Malaysia
collection	PSAS Institutional Repository
language	English English
topic	Logging - Environmental aspects - Case studies
spellingShingle	Logging - Environmental aspects - Case studies Yusop, Zulkifli Effects of Logging on Streamwater Quality and Solute Input-Output Budgets in Small Watersheds in Peninsular Malaysia
description	The effects of selective logging on streamwater quality and solute budget s were investigated using three small catchments: C1, C2 and C3. After a three-year calibration period,Cl and C3 were logged using" unsupervised" and "supervised" logging methods respectively, whereas C2 was left as control. Several control measures were imposed in the supervised C3 but none in the unsupervised C1. During the calibration period the levels for most of the streamwater quality parameters measured were within the standards for potable water. The exceptions were colour, turbidity and iron.Significant increases in pH, specific electrical conductivity, hardness, suspended solids, alkalinity, turbidity, dissolved solids, silicate, calcium, iron,and sodium were recorded in the unsupervised C1. The levels for colour and nitrate were also elevated initially but recovered to background values within a year. In contrast, in the supervised C3, significant changes were detected only for hardness, magnesium and iron. The impact of logging was enhanced during the wet months especially for suspended solids, turbidity and iron.
format	Thesis
qualification_level	Master's degree
author	Yusop, Zulkifli
author_facet	Yusop, Zulkifli
author_sort	Yusop, Zulkifli
title	Effects of Logging on Streamwater Quality and Solute Input-Output Budgets in Small Watersheds in Peninsular Malaysia
title_short	Effects of Logging on Streamwater Quality and Solute Input-Output Budgets in Small Watersheds in Peninsular Malaysia
title_full	Effects of Logging on Streamwater Quality and Solute Input-Output Budgets in Small Watersheds in Peninsular Malaysia
title_fullStr	Effects of Logging on Streamwater Quality and Solute Input-Output Budgets in Small Watersheds in Peninsular Malaysia
title_full_unstemmed	Effects of Logging on Streamwater Quality and Solute Input-Output Budgets in Small Watersheds in Peninsular Malaysia
title_sort	effects of logging on streamwater quality and solute input-output budgets in small watersheds in peninsular malaysia
granting_institution	Universiti Pertanian Malaysia
granting_department	Faculty of Environmental Studies
publishDate	1990
url	http://psasir.upm.edu.my/id/eprint/8563/1/FSAS_1990_5_A.pdf
_version_	1747810829839892480

Effects of Logging on Streamwater Quality and Solute Input-Output Budgets in Small Watersheds in Peninsular Malaysia

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