Natural forest dynamics. I. Homogeneity of species distribution

This study was carried out on a randomly chosen 10-ha (200 × 500 m) forest area within the 50-ha Demography Project area of the Forest Research Institute Malaysia (FRIM) in Pasoh Forest Reserve, Negri Sembilan, Malaysia. The 10-ha study area contained 13 950 trees of 5 cm dbh and larger with a total...

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Main Authors: Wan Ahmad, Wan Mohd Shukri, Wan Mohd, Wan Razali, Muktar, Ashari
Format: Article
Language:English
Published: Forest Research Institute Malaysia 1997
Online Access:http://psasir.upm.edu.my/id/eprint/51049/1/Natural%20forest%20dynamics.%20I.%20Homogeneity%20of%20species%20distribution.pdf
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author Wan Ahmad, Wan Mohd Shukri
Wan Mohd, Wan Razali
Muktar, Ashari
author_facet Wan Ahmad, Wan Mohd Shukri
Wan Mohd, Wan Razali
Muktar, Ashari
author_sort Wan Ahmad, Wan Mohd Shukri
collection UPM
description This study was carried out on a randomly chosen 10-ha (200 × 500 m) forest area within the 50-ha Demography Project area of the Forest Research Institute Malaysia (FRIM) in Pasoh Forest Reserve, Negri Sembilan, Malaysia. The 10-ha study area contained 13 950 trees of 5 cm dbh and larger with a total of 619 species. Of the total 619 species, 26 (4.2%) species were of dipterocarps, 525 (84.8%) non-dipterocarps and 68 (11.0%) miscellaneous species. The results indicate that there is a 95% chance of detecting trees belonging to either all dipterocarp, all non-dipterocarp, or miscellaneous species groups by using a contiguous area of 5 ha; a contiguous area of 2 ha is sufficient to detect trees of all diameter size classes from 5 cm dbh onwards. For practical purpose, a contiguous area of 5 ha is sufficiently large to sample and detect tree distribution by species group and size class simultaneously. The implications of the results of the present study are discussed in relation to the need of establishing larger plot size to enumerate tree parameters, especially in monitoring forest growth dynamics by major species grouping and size class.
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spelling upm.eprints-510492017-05-02T04:39:10Z http://psasir.upm.edu.my/id/eprint/51049/ Natural forest dynamics. I. Homogeneity of species distribution Wan Ahmad, Wan Mohd Shukri Wan Mohd, Wan Razali Muktar, Ashari This study was carried out on a randomly chosen 10-ha (200 × 500 m) forest area within the 50-ha Demography Project area of the Forest Research Institute Malaysia (FRIM) in Pasoh Forest Reserve, Negri Sembilan, Malaysia. The 10-ha study area contained 13 950 trees of 5 cm dbh and larger with a total of 619 species. Of the total 619 species, 26 (4.2%) species were of dipterocarps, 525 (84.8%) non-dipterocarps and 68 (11.0%) miscellaneous species. The results indicate that there is a 95% chance of detecting trees belonging to either all dipterocarp, all non-dipterocarp, or miscellaneous species groups by using a contiguous area of 5 ha; a contiguous area of 2 ha is sufficient to detect trees of all diameter size classes from 5 cm dbh onwards. For practical purpose, a contiguous area of 5 ha is sufficiently large to sample and detect tree distribution by species group and size class simultaneously. The implications of the results of the present study are discussed in relation to the need of establishing larger plot size to enumerate tree parameters, especially in monitoring forest growth dynamics by major species grouping and size class. Forest Research Institute Malaysia 1997 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/51049/1/Natural%20forest%20dynamics.%20I.%20Homogeneity%20of%20species%20distribution.pdf Wan Ahmad, Wan Mohd Shukri and Wan Mohd, Wan Razali and Muktar, Ashari (1997) Natural forest dynamics. I. Homogeneity of species distribution. Journal of Tropical Forest Science, 10 (1). pp. 1-9. ISSN 0128-1283 https://www.frim.gov.my/en/publication/journal-of-tropical-forest-science-jtfs/
spellingShingle Wan Ahmad, Wan Mohd Shukri
Wan Mohd, Wan Razali
Muktar, Ashari
Natural forest dynamics. I. Homogeneity of species distribution
title Natural forest dynamics. I. Homogeneity of species distribution
title_full Natural forest dynamics. I. Homogeneity of species distribution
title_fullStr Natural forest dynamics. I. Homogeneity of species distribution
title_full_unstemmed Natural forest dynamics. I. Homogeneity of species distribution
title_short Natural forest dynamics. I. Homogeneity of species distribution
title_sort natural forest dynamics i homogeneity of species distribution
url http://psasir.upm.edu.my/id/eprint/51049/1/Natural%20forest%20dynamics.%20I.%20Homogeneity%20of%20species%20distribution.pdf
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