Microbial Processes > Long-Term Soil Productivity (LTSP) Study > Forest Locations > Sites Outside the U.S.A.

British Columbia

The LTSP sites are in interior British Columbia and include the Sub-Boreal Spruce, Boreal Black and White Spruce, and Interior Douglas-Fir Biogeoclimatic Zones in stands dominated by spruce-subalpine fir, aspen, and Douglas-fir, respectively. Growing seasons are marked by cold mountain climates and a definite summer dry period (especially in southern British Columbia). The dry period is shorter than that of the Northwestern region of the United States. Soils are medium to fine textured, weakly developed, and formed mainly from glacial till derived from volcanic or sedimentary rocks, with minor inclusions of metamorphics and granitics. Cooperation between the USDA Forest Service network and the British Columbia Ministry of Forests has led to four separate installations, each with three replicates, of the core LTSP experiment.

Visit the British Columbia, Canada LTSP Study web site.

Ontario

LTSP installations are centered in the Boreal Forest of central and northeastern Ontario in stands dominated by black spruce and jack pine. The continental climate is characterized by warm to cool summers, very cold winters, and low precipitation. Soils are formed mainly from medium to coarse textured glacial till or sandy glacial outwash materials overlaying granites and metamorphic rocks of the Canadian Shield. Long-term productivity concerns center around the ability of these sites to sustain nutrient reserves and productivity through successive forest removals. The Canadian Forest Service and the Ontario Ministry of Natural Resources have each installed nine replications of a partial LTSP study design in Ontario.

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