Staff View: Assessing soil biological properties of natural and planted forests in the Malaysian tropical lowland dipterocarp forest

Assessing soil biological properties of natural and planted forests in the Malaysian tropical lowland dipterocarp forest

Problem statement: A study was conducted to evaluate and compare the soil biological properties of a natural forest and an 18-year-old stand of Shorea leprosula in Chikus Forest Reserve, Perak, Malaysia. Approach: Soils were sampled at depths of 0-15 cm (topsoil) and 15-30 cm (subsoil) in six subplo...

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Main Authors:	Karam Singh, Daljit Singh, Abdu, Arifin, Othman, Radziah, Jusop, Shamsuddin, Abdul Hamid, Hazandy, Nik Ab. Majid, Nik Muhamad, Panicker, Mohanaselvi, Abd. Halim, Nor Halizah
Format:	Article
Language:	English
Published:	Science Publications 2011
Online Access:	http://psasir.upm.edu.my/id/eprint/23919/1/ajassp.2011.854.859.pdf http://psasir.upm.edu.my/id/eprint/23919/ http://www.thescipub.com/abstract/10.3844/ajassp.2011.854.859
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spelling	my.upm.eprints.239192017-11-28T09:09:42Z http://psasir.upm.edu.my/id/eprint/23919/ Assessing soil biological properties of natural and planted forests in the Malaysian tropical lowland dipterocarp forest Karam Singh, Daljit Singh Abdu, Arifin Othman, Radziah Jusop, Shamsuddin Abdul Hamid, Hazandy Nik Ab. Majid, Nik Muhamad Panicker, Mohanaselvi Abd. Halim, Nor Halizah Problem statement: A study was conducted to evaluate and compare the soil biological properties of a natural forest and an 18-year-old stand of Shorea leprosula in Chikus Forest Reserve, Perak, Malaysia. Approach: Soils were sampled at depths of 0-15 cm (topsoil) and 15-30 cm (subsoil) in six subplots (20×20 m) of natural forest (C1) and of a planted S. leprosula (C2) plot. Fresh composite soil samples were kept in UV-sterilized polyethylene bags prior to analysis in the laboratory. The microbial population count was determined using a spread-plate count technique. The microbial enzymatic activity was elucidated using a Fluorescein Diacetate (FDA) hydrolysis assay; microbial biomass was extracted using a rapid chloroform fumigation extraction method. The Microbial Biomass C (MBC) was determined by wet dichromate oxidation; Kjeldahl digestion and a distillation method were used for evaluation of Microbial Biomass N (MBN). Results: Results indicate that only the microbial biomass N and the population count in the soil at the 0-15 cm depth were found to be higher in C1 compared to C2. The higher microbial population count in the soil at the 0-15 cm depth of C1 compared to C2 was enhanced by the large amount of organic matter that serves as a suitable medium for soil microbial growth. The higher MBN in the C1 soil was also influenced by the high content of organic material available that encourages activities of decomposing bacteria to take place. Similarities in the soil biological properties of the plots with regard to enzymatic activity and microbial biomass Care believed to be influenced by the same topographic gradient. The higher MBC/MBN ratios found in soils of C2 compared to C1 were due to the low availability of N compared to C, might result from N utilization by soil microbes for organic material decomposition. Conclusion: There are similarities in microbial enzymatic activity and biomass C, but not in microbial population counts and biomass N, between a natural forest and an 18-year-old stand of S. leprosula in Chikus Forest Reserve, Perak, Malaysia. Science Publications 2011 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/23919/1/ajassp.2011.854.859.pdf Karam Singh, Daljit Singh and Abdu, Arifin and Othman, Radziah and Jusop, Shamsuddin and Abdul Hamid, Hazandy and Nik Ab. Majid, Nik Muhamad and Panicker, Mohanaselvi and Abd. Halim, Nor Halizah (2011) Assessing soil biological properties of natural and planted forests in the Malaysian tropical lowland dipterocarp forest. American Journal of Applied Sciences, 8 (9). pp. 854-859. ISSN 1546-9239; ESSN: 1554-3641 http://www.thescipub.com/abstract/10.3844/ajassp.2011.854.859 10.3844/ajassp.2011.854.859
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	Problem statement: A study was conducted to evaluate and compare the soil biological properties of a natural forest and an 18-year-old stand of Shorea leprosula in Chikus Forest Reserve, Perak, Malaysia. Approach: Soils were sampled at depths of 0-15 cm (topsoil) and 15-30 cm (subsoil) in six subplots (20×20 m) of natural forest (C1) and of a planted S. leprosula (C2) plot. Fresh composite soil samples were kept in UV-sterilized polyethylene bags prior to analysis in the laboratory. The microbial population count was determined using a spread-plate count technique. The microbial enzymatic activity was elucidated using a Fluorescein Diacetate (FDA) hydrolysis assay; microbial biomass was extracted using a rapid chloroform fumigation extraction method. The Microbial Biomass C (MBC) was determined by wet dichromate oxidation; Kjeldahl digestion and a distillation method were used for evaluation of Microbial Biomass N (MBN). Results: Results indicate that only the microbial biomass N and the population count in the soil at the 0-15 cm depth were found to be higher in C1 compared to C2. The higher microbial population count in the soil at the 0-15 cm depth of C1 compared to C2 was enhanced by the large amount of organic matter that serves as a suitable medium for soil microbial growth. The higher MBN in the C1 soil was also influenced by the high content of organic material available that encourages activities of decomposing bacteria to take place. Similarities in the soil biological properties of the plots with regard to enzymatic activity and microbial biomass Care believed to be influenced by the same topographic gradient. The higher MBC/MBN ratios found in soils of C2 compared to C1 were due to the low availability of N compared to C, might result from N utilization by soil microbes for organic material decomposition. Conclusion: There are similarities in microbial enzymatic activity and biomass C, but not in microbial population counts and biomass N, between a natural forest and an 18-year-old stand of S. leprosula in Chikus Forest Reserve, Perak, Malaysia.
format	Article
author	Karam Singh, Daljit Singh Abdu, Arifin Othman, Radziah Jusop, Shamsuddin Abdul Hamid, Hazandy Nik Ab. Majid, Nik Muhamad Panicker, Mohanaselvi Abd. Halim, Nor Halizah
spellingShingle	Karam Singh, Daljit Singh Abdu, Arifin Othman, Radziah Jusop, Shamsuddin Abdul Hamid, Hazandy Nik Ab. Majid, Nik Muhamad Panicker, Mohanaselvi Abd. Halim, Nor Halizah Assessing soil biological properties of natural and planted forests in the Malaysian tropical lowland dipterocarp forest
author_facet	Karam Singh, Daljit Singh Abdu, Arifin Othman, Radziah Jusop, Shamsuddin Abdul Hamid, Hazandy Nik Ab. Majid, Nik Muhamad Panicker, Mohanaselvi Abd. Halim, Nor Halizah
author_sort	Karam Singh, Daljit Singh
title	Assessing soil biological properties of natural and planted forests in the Malaysian tropical lowland dipterocarp forest
title_short	Assessing soil biological properties of natural and planted forests in the Malaysian tropical lowland dipterocarp forest
title_full	Assessing soil biological properties of natural and planted forests in the Malaysian tropical lowland dipterocarp forest
title_fullStr	Assessing soil biological properties of natural and planted forests in the Malaysian tropical lowland dipterocarp forest
title_full_unstemmed	Assessing soil biological properties of natural and planted forests in the Malaysian tropical lowland dipterocarp forest
title_sort	assessing soil biological properties of natural and planted forests in the malaysian tropical lowland dipterocarp forest
publisher	Science Publications
publishDate	2011
url	http://psasir.upm.edu.my/id/eprint/23919/1/ajassp.2011.854.859.pdf http://psasir.upm.edu.my/id/eprint/23919/ http://www.thescipub.com/abstract/10.3844/ajassp.2011.854.859
_version_	1643828205596966912
score	13.211869

Assessing soil biological properties of natural and planted forests in the Malaysian tropical lowland dipterocarp forest

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