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Long term soil productivity study
Berch, Shannon M.
In the Long Term Soil Productivity study (LTSP), we recognize that a leading edge reputation in forest management is based on environmental sustainability as well as on high-quality, reasonably priced product. The LTSP is part of a large, international network dedicated to testing sustainable forest soil management over the full timber rotation. LTSP sites have been installed in BC in 4 biogeoclimatic zones with 5 timber species and on calcareous or non-calcareous soils. Throughout North America, there are 62 similar installations, all designed to investigate the impacts of soil disturbance on near-term and long-term soil and forest productivity. Plots have had three levels of compaction (none, intermediate and heavy) and three levels of organic matter removal (stem only harvest; whole tree harvest; forest floor removal and whole tree harvest) before being regenerated with commercial tree species. Measurement of soil properties, understory vegetation, microclimate, and tree productivity occur at scheduled periods throughout the full timber rotation. Findings from this research contribute to the development of our knowledge base and to ongoing development and refinement of forest practice regulations and guidelines. In 2003/4, we began to apply treatments to the final BC installation, re-measured BC LTSP sites in years 5 and 10, and maintained the remaining sites. We also collected soil fauna samples from the 2 SBS sites in year 10. Shannon Marie Berch.
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Final Project Abstract
Annual Progress Report

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