Physical attributes of soil in integrated crop-livestock-forest systems/Atributos fisicos do solo em sistemas de integracao lavoura-pecuaria-floresta

PCR Assis, LF Stone, JC Medeiros… - Revista Brasileira de …, 2015 - go.gale.com
PCR Assis, LF Stone, JC Medeiros, BE Madari, JM Oliveira, FJ Wruck
Revista Brasileira de Engenharia Agrícola e Ambiental, 2015go.gale.com
This study aimed to determine changes in soil physical attributes as result of implementation
of integrated crop-livestock-forest (iCLF) systems and to identify atributes suitable for the
detection of changes in soil physical quality (SFQ). Soil samples were collected in 0-0.10
and 0.10-0.20 m layers in Nova Canaa do Norte, MT, and Cachoeira Dourada, GO, in areas
under iCLF with 1 (iCLF1) or 3 (iLCF3) lines of eucalyptus in areas of recovered and
degraded pastures. In iCLF1, the samples were collected from the tree line and at 2.5, 5.0 …
Abstract
This study aimed to determine changes in soil physical attributes as result of implementation of integrated crop-livestock-forest (iCLF) systems and to identify atributes suitable for the detection of changes in soil physical quality (SFQ). Soil samples were collected in 0-0.10 and 0.10-0.20 m layers in Nova Canaa do Norte, MT, and Cachoeira Dourada, GO, in areas under iCLF with 1 (iCLF1) or 3 (iLCF3) lines of eucalyptus in areas of recovered and degraded pastures. In iCLF1, the samples were collected from the tree line and at 2.5, 5.0 and 10.0 m of this line. In iCLF3, in Nova Canaa do Norte, the samples were collected from the middle line and at 3.0; 6.0; 9.0 and 12.0 m of this line, and in Cachoeira Dourada, from the middle line and at 1.5; 3.0; 4.5; 6.0 and 9.0 m of this line, with five replications. iCLF systems promoted improvement in SFQ regarding degraded pasture. In Nova Canaa do Norte, iCLF1 provided better recovery in SFQ, relative to degraded pasture, than iCLF3. The SFQ in iCLF systems varied with the sampling position relative to the line of trees. Bulk density and pore arrangement in the 0.10-0.20 m soil layer were mainly responsible for discriminating integrated systems from degraded pasture.
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