Assessing the Effect of Silviculture Treatments and Soil Quality on the Planted Dipterocarp Species after Enrichment Planting

An assessment after different silviculture treatment was conducted on the growth performance and survival of planted Dryobalanops beccarii on 2005 in Gunung Apeng National Park (GANP). Two study plots with different silviculture treatments and control plot were established namely T1 (bush slashing...

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Main Author:	Douglas Bungan, Ambun
Format:	Thesis
Language:	English English
Published:	2021
Subjects:	S Agriculture (General) SD Forestry
Online Access:	http://ir.unimas.my/id/eprint/35736/2/24%20PAGES.pdf http://ir.unimas.my/id/eprint/35736/4/Douglas%20Bungan%20Anak%20Ambun%20ft.pdf
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id	my-unimas-ir.35736
record_format	uketd_dc
spelling	my-unimas-ir.357362023-05-11T00:58:42Z Assessing the Effect of Silviculture Treatments and Soil Quality on the Planted Dipterocarp Species after Enrichment Planting 2021 Douglas Bungan, Ambun S Agriculture (General) SD Forestry An assessment after different silviculture treatment was conducted on the growth performance and survival of planted Dryobalanops beccarii on 2005 in Gunung Apeng National Park (GANP). Two study plots with different silviculture treatments and control plot were established namely T1 (bush slashing (control)) and T2 (selective girdling+ bush slashing). The growth performance of planted trees in terms of tree survival, total height and stem diameter were assessed for period of 72 months. Composite and undisturbed soil samples were collected at several random points within each study plots at 0-10 cm and 30-40 cm depth for the determination of soil physicochemical properties. Soil profile description was conducted in each plot to determine the morphological properties of the soils existing in the study area. The findings showed that the survival at T1 and T2 were 82.9% and 79.2%, respectively. Meanwhile, the average diameter and tree height recorded in T1 were 7.5 cm in diameter and 8.3 m in height, followed by T2 with 9.4 cm in diameter and 9.2 m in height. In terms of mean annual increment in diameter and height, T2 showed higher in MaiD and MaiH than T1 (p < 0.001). Then, the soil at the study area was acidic with a pH of less than 5, mostly sandy clayed in textural class and a moderate level of the nutrient. The type of soil at the study site was determined as grey-white podzolic soil which with strongly acidic with low nutrient content, deficiency moisture, and aeration. To conclude long terms effects of the selective girdling on the planted tree still rather insufficient due to other ecological factors. Universiti Malaysia Sarawak (UNIMAS) 2021 Thesis http://ir.unimas.my/id/eprint/35736/ http://ir.unimas.my/id/eprint/35736/2/24%20PAGES.pdf text en public http://ir.unimas.my/id/eprint/35736/4/Douglas%20Bungan%20Anak%20Ambun%20ft.pdf text en validuser masters Universiti Malaysia Sarawak (UNIMAS) Faculty of Resource Science and Technology
institution	Universiti Malaysia Sarawak
collection	UNIMAS Institutional Repository
language	English English
topic	S Agriculture (General) SD Forestry
spellingShingle	S Agriculture (General) SD Forestry Douglas Bungan, Ambun Assessing the Effect of Silviculture Treatments and Soil Quality on the Planted Dipterocarp Species after Enrichment Planting
description	An assessment after different silviculture treatment was conducted on the growth performance and survival of planted Dryobalanops beccarii on 2005 in Gunung Apeng National Park (GANP). Two study plots with different silviculture treatments and control plot were established namely T1 (bush slashing (control)) and T2 (selective girdling+ bush slashing). The growth performance of planted trees in terms of tree survival, total height and stem diameter were assessed for period of 72 months. Composite and undisturbed soil samples were collected at several random points within each study plots at 0-10 cm and 30-40 cm depth for the determination of soil physicochemical properties. Soil profile description was conducted in each plot to determine the morphological properties of the soils existing in the study area. The findings showed that the survival at T1 and T2 were 82.9% and 79.2%, respectively. Meanwhile, the average diameter and tree height recorded in T1 were 7.5 cm in diameter and 8.3 m in height, followed by T2 with 9.4 cm in diameter and 9.2 m in height. In terms of mean annual increment in diameter and height, T2 showed higher in MaiD and MaiH than T1 (p < 0.001). Then, the soil at the study area was acidic with a pH of less than 5, mostly sandy clayed in textural class and a moderate level of the nutrient. The type of soil at the study site was determined as grey-white podzolic soil which with strongly acidic with low nutrient content, deficiency moisture, and aeration. To conclude long terms effects of the selective girdling on the planted tree still rather insufficient due to other ecological factors.
format	Thesis
qualification_level	Master's degree
author	Douglas Bungan, Ambun
author_facet	Douglas Bungan, Ambun
author_sort	Douglas Bungan, Ambun
title	Assessing the Effect of Silviculture Treatments and Soil Quality on the Planted Dipterocarp Species after Enrichment Planting
title_short	Assessing the Effect of Silviculture Treatments and Soil Quality on the Planted Dipterocarp Species after Enrichment Planting
title_full	Assessing the Effect of Silviculture Treatments and Soil Quality on the Planted Dipterocarp Species after Enrichment Planting
title_fullStr	Assessing the Effect of Silviculture Treatments and Soil Quality on the Planted Dipterocarp Species after Enrichment Planting
title_full_unstemmed	Assessing the Effect of Silviculture Treatments and Soil Quality on the Planted Dipterocarp Species after Enrichment Planting
title_sort	assessing the effect of silviculture treatments and soil quality on the planted dipterocarp species after enrichment planting
granting_institution	Universiti Malaysia Sarawak (UNIMAS)
granting_department	Faculty of Resource Science and Technology
publishDate	2021
url	http://ir.unimas.my/id/eprint/35736/2/24%20PAGES.pdf http://ir.unimas.my/id/eprint/35736/4/Douglas%20Bungan%20Anak%20Ambun%20ft.pdf
_version_	1783728461831995392

Assessing the Effect of Silviculture Treatments and Soil Quality on the Planted Dipterocarp Species after Enrichment Planting

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