Journal
FOREST ECOLOGY AND MANAGEMENT
Volume 195, Issue 1-2, Pages 85-95Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.foreco.2004.02.052
Keywords
E. globulus; harvesting; clearcutting; logging slash disposal; soil erosion; burning
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The effect of different logging slash disposal techniques on soil erosion for 3 years after harvesting was evaluated in a clear-felled Eucalyptus globulus Labill. stand on a representative coastal site in Galicia (NW Spain). The treatments compared were: slash scattering; slash scattering + fertilization; windrowing; scattering + burning (broadcast burning) and windrowing + strip burning (windrow burning). Accumulated soil losses were relatively small and particularly in slash scattering treatments. Both burning treatments resulted in significantly higher losses (between 7 and 110 times) than the other disposal methods. Broadcast burning generated less erosion than windrow burning in the first year after treatment but not in the second. The severe burning conditions in windrow burns reduced drastically the protective soil organic layer. Slash scattered (alone or combined with fertilization) on the ground was the most efficient treatment and gave negligible soil losses. Cover by slash or litter and duff significantly controlled soil losses. In burn treatments, remaining slash and litter + duff reduced soil losses. The duration of soil heating significantly affected the remaining soil organic cover on burned soils and this, in turn, was significantly influenced by surface soil moisture content immediately before burning. Soil moisture content just before burns was the key to constrain soil losses after slash burning. (C) 2004 Elsevier B.V. All rights reserved.
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