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首页> 外文期刊>ScientificWorldJournal >Impact of Long-Term Forest Enrichment Planting on the Biological Status of Soil in a Deforested Dipterocarp Forest in Perak, Malaysia
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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

机译：长期森林富集种植对霹雳州霹雳州森林Dipterocarp森林土壤生物学现状的影响

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Deforestation leads to the deterioration of soil fertility which occurs rapidly under tropical climates. Forest rehabilitation is one of the approaches to restore soil fertility and increase the productivity of degraded areas. The objective of this study was to evaluate and compare soil biological properties under enrichment planting and secondary forests at Tapah Hill Forest Reserve, Perak after 42 years of planting. Both areas were excessively logged in the 1950s and left idle without any appropriate forest management until 1968 when rehabilitation program was initiated. Six subplots (20 m × 20 m) were established within each enrichment planting (F1) and secondary forest (F2) plots, after which soil was sampled at depths of 0–15 cm (topsoil) and 15–30 cm (subsoil). Results showed that total mean microbial enzymatic activity, as well as biomass C and N content, was significantly higher in F1 compared to F2. The results, despite sample variability, suggest that the rehabilitation program improves the soil biological activities where high rate of soil organic matter, organic C, N, suitable soil acidity range, and abundance of forest litter is believed to be the predisposing factor promoting higher population of microbial in F1 as compared to F2. In conclusion total microbial enzymatic activity, biomass C and biomass N evaluation were higher in enrichment planting plot compared to secondary forest. After 42 years of planting, rehabilitation or enrichment planting helps to restore the productivity of planted forest in terms of biological parameters.
机译：森林砍伐导致土壤肥力的恶化，这在热带气候下迅速发生。森林康复是恢复土壤肥力的方法之一，并提高降解地区的生产力。本研究的目的是评估和比较Tapah Hill森林储备的富集种植和次生森林下的土壤生物学特性，霹雳州在42年后种植。在20世纪50年代，这两个领域都被过度登录，并在没有适当的森林管理的情况下闲置，直到1968年开始康复计划。在每种富集种植（F1）和二级林（F2）图中建立了六个汇位（20m×20μm），之后在0-15cm（TOPSOIL）和15-30cm（Subsoil）的深度下进行土壤。结果表明，与F2相比，F1的总平均微生物酶活性和生物量C和N含量显着较高。结果尽管样品变异性，但康复程序改善了土壤有机质，有机C，N，合适的土壤酸度范围和森林凋落物高率的土壤生物活性，据信是促进促进较高人群的概述因素与F2相比，F1中的微生物。总之，与二次森林相比，总微生物酶活性，生物量C和生物质N评价富集种植剧中较高。在42岁时种植，康复或富集种植有助于在生物参数方面恢复种植林的生产率。

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