Soil Disturbance Effects of Hoe-Forwarding on Tree Growth and Site Productivity: 15-Year Results at the Woss Study Site

نویسنده

  • Kevin R. Brown
چکیده

These effects on tree growth, which may persist for several decades (Hatchell et al. 1970, Butt 1987, Miller et al. 1996), may lead to shortand long-term reductions in tree growth and forest productivity. The level of soil disturbance will vary with soil texture, forest floor thickness, and soil water content at time of harvest (Miller and Sirois 1986, Corns 1988). In addition, machine type, size and operating practices will directly influence the level of disturbance. Concerns about soil disturbance levels from ground-based harvesting systems led to the development of the “Site Degradation Guidel ines for the Vancouver Forest Region” (BC Ministry of Forests 1991).

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تاریخ انتشار 2009