Traffic effects on the soil preconsolidation pressure due to eucalyptus harvest operations

Scientia Agricola

Moacir De Souza Dias Junior²  Fernando Palha Leite¹  Edson Lasmar Júnior²  Cezar Francisco Araújo Junior² 

[1] ,Universidade Federal de Lavras Depto. de Ciência do Solo Lavras MG ,Brasil

关键词: forest soil compaction;    soil structure;    uniaxial compression test;    compactação de solos florestais;    estrutura do solo;    ensaio de compressão uniaxial;   

DOI  :  10.1590/S0103-90162005000300008

来源: SciELO

【 摘 要 】

One of the limitations for reaching sustainable forest development is related to the traffic of machines and vehicles during harvest operations and wood transport, which may cause soil structure degradation. Seeking a way to analyze this problem, the objective of this study was to determine the traffic effects due to harvest operations and wood transport, on the preconsolidation pressure (sigmap) in a Typic Acrustox cultivated with eucalyptus. This study was conducted using undisturbed soil samples collected at the 0.1-0.125 m depth. Undisturbed soil samples were used in the uniaxial compression tests. Soil sampling consisted of two stages, before and after the mechanized harvest operations. The traffic effects on the sigmap in the dry season indicated that the soil compaction process was neither evident nor important. However, in the rainy season the traffic effects on the sigmap indicated that the operations performed with Harvester and Forwarder caused greater soil compaction than those with Motorized Saw and Manual, which caused less soil compaction.

【 授权许可】

CC BY   
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