Impact of Long-Term Forest Enrichment Planting on the Biological Status of Soil in a Deforested Dipterocarp Forest in Perak, Malaysia

Karam, Daljit Singh; Abdu, Arifin; Othman, Radziah; Shamshuddin, J.; Majid, Nik Muhamad Nik Ab.; Hazandy, A. H.; Zahari, I.; Halizah, A. H. Nor; Rui, Tian

doi:10.1100/2012/641346

Cited by 14 publications

(21 citation statements)

References 40 publications

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“…Enrichment planting involves the introduction of ecologically valuable pioneer species to degraded landscapes [51]. Though an expensive exercise, enrichment planting has proven successful in many instances (e.g., 48 -49, 51 -54).…”

Section: Enrichment Plantingmentioning

confidence: 99%

Dynamics of Logging in Solomon Islands: The Need for Restoration and Conservation Alternatives

Katovai

Edwards

Laurance

2015

Tropical Conservation Science

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Forests of Asia-Pacific islands have undergone degradation by some of the worst-known selective logging practices in the tropics. It is unclear whether severely damaged forests can return to a pre-logging state via natural regeneration, or whether active restoration is required. In this review, we highlight how the socioeconomic dynamics in the Solomon Islands promote excessive logging, resulting in highly degraded forests. We detail seven key elements currently promoting excessive logging in this region: (i) economic interests, (ii) corruption, (iii) poor employment conditions in the logging sector, (iv) high forest accessibility, (v) resource limitations for forest monitoring, (vi) contention over logging benefits, and (vii) a paucity of information for policy development. Though research on the regeneration capacity of logged forests in the Solomon Islands remains extremely limited, we suggest that some logged forests in the country may require active restoration-especially those that have been most heavily damaged. Our argument is based on previous tree planting initiatives in logged forest in the 1970s and 1980s. We propose three broad restoration techniques-enrichment planting, direct seeding, and the use of artificial perches-as viable options to help restore logged forests in the Solomon Islands. Lastly, we recommend the conservation-concession model to aid forest restoration, given its recent success in the region.

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Section: Enrichment Plantingmentioning

confidence: 99%

Dynamics of Logging in Solomon Islands: The Need for Restoration and Conservation Alternatives

Katovai

Edwards

Laurance

2015

Tropical Conservation Science

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“…Table 2 (selected results were extracted from Karam et al, 2012; shows the results of soil analyses for each plot of Tapah Hill and Chikus Forest Reserves that was used in the development of the new index.…”

Section: Resultsmentioning

confidence: 99%

“…Clay and sand were determined by using the universal pipette method (Gupta, 2007). Soil moisture content for each composite sample was determined using gravimetric method as used in Karam et al (2012). Soil pH in water (pH w ) was determined in 1:2.5 soil to distilled water ratio.…”

Section: Soil Analysesmentioning

confidence: 99%

Proposed Soil Quality Index for Rehabilitated Tropical Forest Sites in Malaysia

Karam¹,

Abdu²,

Rajoo³

et al. 2017

American Journal of Applied Sciences

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A proposed soil quality index named Tropical Soil Quality Index 2 (TSQI2) was developed in this study using statistical analysed data of selected properties (physical, chemical and biological) of composite soil samples collected from natural, secondary and rehabilitated forests of Chikus and Tapah Hill Forest Reserves, Perak, Malaysia. Results of soil evaluation using TSQI2 showed higher values for planted forest in Chikus Forest Reserve compared to those of the rehabilitated forest in Tapah Hill Forest Reserve. Likewise, rehabilitated forest of Tapah Hill Forest Reserve had slightly higher index value compared to that of the secondary forest. The higher index for rehabilitated Chikus Forest Reserve compared to that of the natural forest was due to high MBC/MBN ratio values. The reason for this condition was the lower amount of microbial biomass nitrogen as compared to microbial biomass carbon. Plant growth performance of dominant trees species showed that Shorea leprosula was high in natural forests, followed by rehabilitated forest of Tapah Hill Forest Reserve. The newly proposed TSQI2 (which had been validated using actual data) is suitable for determining the quality of natural and rehabilitated forests in tropical regions.

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“…Gravimetric method was used to quantify the amount of available moisture in each soil sample (Gupta, 2007;Karam et al, 2011). Soil pH was determined in water pH (H 2 O) using a glass electrode in a soil to solution of 1:5 Saga et al, 2010;Karam et al, 2012). Total carbon and nitrogen were determined by dry combustion technique CN analyser.…”

Section: Soil Analysesmentioning

confidence: 99%

The Fertility Status of Soils at Rehabilitated Degraded Land in Universiti Putra Malaysia Planted with <i>Pinus caribaea</i> and <i>Swietenia macrophylla</i>

Malik¹,

Abdu²,

Karam³

et al. 2015

American Journal of Applied Sciences

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Soil fertility (both physical and chemical) is one of the important factors limiting plant growth. So, the fertility of the soils should be determined before growing crops and after the establishment of forest rehabilitation. A study was conducted to determine the fertility status of soils at rehabilitated degraded land in Universiti Putra Malaysia. The main objective was to compare the fertility of soils planted forest and pasture. Three sites studied were pines plantation (Pinus caribaea), mahogany plantation (Swietenia macrophylla) and pasture area. At each site, three squares of 20×20 m were selected and two depths of soil sample were collected, topsoil (0-20 cm) and subsoil (20-40 cm), from six points within the squares. The physical properties of the soils analyzed were bulk density, soil texture and moisture content, while the chemical properties were pH, total C and N, cation exchangeable capacity and exchangeable cations (Al, Ca, Mg, K and Na). The mean annual increment of height, diameter and volume of planted forest were also taken. The increment of height, diameter at breast height and volume of P. caribaea and S. macrophylla did not show any comparative difference for the cause of the similarity in the increment of patterns catalysed at the same location and climatic condition. P. caribaea showed higher SFI value compared to the other study plots, especially for the topsoil. In contrast, pasture plot had higher SEF, followed by P. caribaea and S. macrophylla plantation plots. P. caribaea showed the highest SFI value, while pasture plot had highest SEF, followed by P. caribaea and S. macrophylla plantation plots. Further study on bigger forest plantation having different types of plant species and land topography needs to be conducted to allow individuals and bodies in the field of forest plantation to gain the opportunity and implement the right approaches to establish forest plantation with good planting establishment practices.

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Impact of Long-Term Forest Enrichment Planting on the Biological Status of Soil in a Deforested Dipterocarp Forest in Perak, Malaysia

Cited by 14 publications

References 40 publications

Dynamics of Logging in Solomon Islands: The Need for Restoration and Conservation Alternatives

Dynamics of Logging in Solomon Islands: The Need for Restoration and Conservation Alternatives

Proposed Soil Quality Index for Rehabilitated Tropical Forest Sites in Malaysia

The Fertility Status of Soils at Rehabilitated Degraded Land in Universiti Putra Malaysia Planted with <i>Pinus caribaea</i> and <i>Swietenia macrophylla</i>

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