Persistence of Soil Compaction and Effects on Seedling Growth in Northwestern Quebec

• DOI: 10.2136/sssaj2001.6541263x
• Publication Date: 2010-07-27T20:33:28Z
• Authors: Suzanne Brais
• Keywords: Soil Compaction; Limiting; Skid (aerodynamics)

Compaction is perceived as one of the leading causes soil degradation resulting from forest operations. The objectives this study were, for two contrasting textural groups (i) to assess persistence compaction; (ii) compare growth patterns seedlings submitted different levels physical disturbance induced by harvesting, and (iii) relative importance properties on these patterns. Six years following penetration resistance showed significant relationships with traffic while between patterns, macroporosity bulk density were less significant. On fine‐textured soils, five after plantation, white spruce [ Picea glauca (Moench) Voss] height was 28% higher in track (BT) microsites 25% wheel areas (WT) skid trails than undisturbed (UD). Nonetheless, mortality rate WT area. Competition severity explained over 40% early radial characteristics had little effect. coarse‐textured competition (WT BT) decreased number skidding cycles, increases black mariana (Mill.) B.S.P.] jack pine ( Pinus banksiana Lamb.) growth. Growth negatively affected high values or positively so microporosity values, indicating that water retention may be limiting soils. compaction beneficial establishment period. Further investigation required verify results also apply long term.