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Tropical forests stand recovery 30-year after selectively logged in peninsular malaysia

This article analysed the 25–30 years of growth of dipterocarps forests that were logged under the Selective Management System (SMS) at three sites in Peninsular Malaysia to understand how management regimes affected forest stem density and basal area. The management regimes were (1) unlogged, (2) m...

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Main Authors: Richard, Aldrich, Mohamad Kassim, Mohamad Roslan, Kudus, Kamziah Abd, Nazre Saleh, Mohd
Format: Article
Language:English
Published: Universiti Putra Malaysia 2023
Online Access:http://psasir.upm.edu.my/id/eprint/108358/1/108358.pdf
http://psasir.upm.edu.my/id/eprint/108358/
http://www.pertanika.upm.edu.my/pjtas/browse/regular-issue?article=JTAS-2698-2023
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spelling my.upm.eprints.1083582024-10-24T04:26:33Z http://psasir.upm.edu.my/id/eprint/108358/ Tropical forests stand recovery 30-year after selectively logged in peninsular malaysia Richard, Aldrich Mohamad Kassim, Mohamad Roslan Kudus, Kamziah Abd Nazre Saleh, Mohd This article analysed the 25–30 years of growth of dipterocarps forests that were logged under the Selective Management System (SMS) at three sites in Peninsular Malaysia to understand how management regimes affected forest stem density and basal area. The management regimes were (1) unlogged, (2) moderately logged forests that logged all dipterocarps ≥ 65 cm diameter at breast height (dbh) and all non-dipterocarps ≥ 60 cm dbh, and (3) intensely logged forests that logged all dipterocarps ≥ 50 cm dbh and non-dipterocarps ≥ 45 cm dbh. The intensely logged regime is similar to the SMS practices in Peninsular Malaysia. This result showed that one-year post-logging, there was no difference in the total stem density and basal area between forests logged according to the two management regimes. Forest stem density decreased over time in all management regimes, significantly greater in unlogged forests (-15.1 stems/ha/yr, confidence interval (CI): -16.9 to -13.3). This decline in stem density reflected that mortality exceeded recruitment in all management regimes. Despite the consistent decline of forest stem density, the basal area increased over time, and the rate of increase in the intensely logged forest (0.22 m2 /ha/yr, CI: 0.19 to 0.25) was significantly greater than the other management regimes. Our study showed that 30 years post-logging, the effect of selective logging remained evident. Both logged forest stem density and the basal area did not recover to that of unlogged forests, indicating the importance of enrichment planting and extending the cutting cycles beyond 30 years for the sustainability of dipterocarps forests. Universiti Putra Malaysia 2023 Article PeerReviewed text en cc_by_nc_nd_4 http://psasir.upm.edu.my/id/eprint/108358/1/108358.pdf Richard, Aldrich and Mohamad Kassim, Mohamad Roslan and Kudus, Kamziah Abd and Nazre Saleh, Mohd (2023) Tropical forests stand recovery 30-year after selectively logged in peninsular malaysia. Pertanika Journal of Tropical Agricultural Science, 46 (3). pp. 1027-1046. ISSN 2231-8542 http://www.pertanika.upm.edu.my/pjtas/browse/regular-issue?article=JTAS-2698-2023 10.47836/pjtas.46.3.16
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
description This article analysed the 25–30 years of growth of dipterocarps forests that were logged under the Selective Management System (SMS) at three sites in Peninsular Malaysia to understand how management regimes affected forest stem density and basal area. The management regimes were (1) unlogged, (2) moderately logged forests that logged all dipterocarps ≥ 65 cm diameter at breast height (dbh) and all non-dipterocarps ≥ 60 cm dbh, and (3) intensely logged forests that logged all dipterocarps ≥ 50 cm dbh and non-dipterocarps ≥ 45 cm dbh. The intensely logged regime is similar to the SMS practices in Peninsular Malaysia. This result showed that one-year post-logging, there was no difference in the total stem density and basal area between forests logged according to the two management regimes. Forest stem density decreased over time in all management regimes, significantly greater in unlogged forests (-15.1 stems/ha/yr, confidence interval (CI): -16.9 to -13.3). This decline in stem density reflected that mortality exceeded recruitment in all management regimes. Despite the consistent decline of forest stem density, the basal area increased over time, and the rate of increase in the intensely logged forest (0.22 m2 /ha/yr, CI: 0.19 to 0.25) was significantly greater than the other management regimes. Our study showed that 30 years post-logging, the effect of selective logging remained evident. Both logged forest stem density and the basal area did not recover to that of unlogged forests, indicating the importance of enrichment planting and extending the cutting cycles beyond 30 years for the sustainability of dipterocarps forests.
format Article
author Richard, Aldrich
Mohamad Kassim, Mohamad Roslan
Kudus, Kamziah Abd
Nazre Saleh, Mohd
spellingShingle Richard, Aldrich
Mohamad Kassim, Mohamad Roslan
Kudus, Kamziah Abd
Nazre Saleh, Mohd
Tropical forests stand recovery 30-year after selectively logged in peninsular malaysia
author_facet Richard, Aldrich
Mohamad Kassim, Mohamad Roslan
Kudus, Kamziah Abd
Nazre Saleh, Mohd
author_sort Richard, Aldrich
title Tropical forests stand recovery 30-year after selectively logged in peninsular malaysia
title_short Tropical forests stand recovery 30-year after selectively logged in peninsular malaysia
title_full Tropical forests stand recovery 30-year after selectively logged in peninsular malaysia
title_fullStr Tropical forests stand recovery 30-year after selectively logged in peninsular malaysia
title_full_unstemmed Tropical forests stand recovery 30-year after selectively logged in peninsular malaysia
title_sort tropical forests stand recovery 30-year after selectively logged in peninsular malaysia
publisher Universiti Putra Malaysia
publishDate 2023
url http://psasir.upm.edu.my/id/eprint/108358/1/108358.pdf
http://psasir.upm.edu.my/id/eprint/108358/
http://www.pertanika.upm.edu.my/pjtas/browse/regular-issue?article=JTAS-2698-2023
_version_ 1814054655299158016
score 13.211869

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