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首页> 外文期刊>American Journal of Environmental Sciences >Effect of Logging Operation on Soil Carbon Storage of a Tropical Peat Swamp Forest | Science Publications
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Effect of Logging Operation on Soil Carbon Storage of a Tropical Peat Swamp Forest | Science Publications

机译：伐木作业对热带泥炭沼泽森林土壤碳储量的影响科学出版物

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> Problem statement: Since heavy machinery are used in the logging operation activity for extracting the logs on sensitive forest site with peat soil, environment destruction should be the other concern during its processes especially on its important function as soil carbon storage. The objective of this study was to determine whether logging operation affect soil carbon storage of a tropical peat swamp forest. Approach: Soil sampling was conducted before and after logging operation in a 0.3 ha plot to a depth of 15 cm. The soil samples were analyzed for acidity, organic matter content, total carbon, total nitrogen and total phosphorus. The humic acid extraction was also done and soil carbon storage values were obtained by calculation. Paired t-test was used to compare variables under the two treatments (before and after logging) and correlation analysis was used to correlate variables such as soil pH, soil organic matter, total carbon, total nitrogen, total phosphorus, C/N ratio, C/P ratio, humic acid yield, unstable carbon and stable carbon. Results: The availability of unstable carbon and stable carbon controlled by soil acidity on undisturbed peat swamp forest as a result, the accumulation of unstable carbon as well as stable carbon occurred even if the soil pH declines and vice versa. However, stable carbon associated well with soil acidity. It was found that the C/P ratio positively correlated with humic acid and stable carbon of both before and after logging conditions. Nevertheless, that association was prominent on logged peat swamp forest. An indication that even though this peat swamp forest had been logged, humification was strongly maintained. However, the similarity of stable carbon of the logged peat swamp forest with stable carbon of undisturbed peat swamp forest indicate an ineffectiveness humification of logged peat swamp forest. Conclusion: Logging operation on sensitive forest with peat soil using heavy machinery increased the bulk density because of compaction. Soil acidity has important role in preserving soil carbon storage of this natural peat swamp forest, especially stable carbon. After the peat swamp forest is logged, humification processes are strongly maintained but slows and becomes ineffective, hence unstable carbon decomposes more instead of it being preserved as stable carbon. Disturbance by logging operation does not alter their amount of soil carbon storage (stable carbon) due to the carbon in humic acid is quite stable within one year.
机译： > 问题陈述：由于伐木活动中使用重型机械来提取泥炭土敏感林区的原木，因此在其过程中尤其要注意环境破坏它在土壤碳储藏中的重要作用。这项研究的目的是确定伐木作业是否会影响热带泥炭沼泽森林的土壤碳储量。 方法：在伐木作业前后，在0.3公顷的土地上进行土壤采样，深度为15厘米。分析土壤样品的酸度，有机物含量，总碳，总氮和总磷。还进行了腐殖酸提取，并通过计算获得了土壤碳储量值。配对t检验用于比较两种处理（测井前后）下的变量，相关分析用于将变量（例如土壤pH，土壤有机质，总碳，总氮，总磷，碳/氮比， C / P比，腐殖酸收率，不稳定的碳和稳定的碳。 结果：结果表明，在未扰动的泥炭沼泽森林中，不稳定的碳和受土壤酸度控制的稳定碳的有效性，即使土壤pH下降，也会发生不稳定碳和稳定碳的积累，反之亦然。但是，稳定的碳与土壤酸度密切相关。结果表明，测井条件前后C / P比值与腐殖酸和稳定碳呈正相关。然而，这种联系在伐木的泥炭沼泽森林中尤为突出。有迹象表明，即使已记录了这个泥炭沼泽森林，也仍然保持了谦卑的状态。但是，采伐的泥炭沼泽森林的稳定碳与未扰动的泥炭沼泽森林的稳定碳的相似性表明采伐的泥炭沼泽森林的无效增湿作用。 结论：由于压实作用，使用重型机械在泥炭土敏感森林上进行采伐增加了堆密度。土壤酸度在保持该天然泥炭沼泽森林的土壤碳储量（尤其是稳定碳）方面具有重要作用。泥炭沼泽森林砍伐后，强化过程得到了强有力的维持，但减缓并变得无效，因此不稳定的碳会分解更多，而不是作为稳定的碳保存。由于腐殖酸中的碳在一年之内相当稳定，因此伐木作业造成的干扰不会改变土壤碳储量（稳定碳）。

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