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Ecological sites of the Dry Mixedwood subregion. Third approximation

Description

The Dry and Central Mixedwood subregions cover nearly 40 per cent of the province and are dominated by aspen, with jack pine on coarse textured soils, and black spruce, willows, and sedges in the... More ≫

Description

The Dry and Central Mixedwood subregions cover nearly 40 per cent of the province and are dominated by aspen, with jack pine on coarse textured soils, and black spruce, willows, and sedges in the poorly drained areas. The vegetative communities in these subregions are important because they provide summer range for livestock, prime habitat for many species of wildlife, productive watersheds, recreational areas and timber production. As a result guides like this were developed to provide a framework that will easily group the vegetative community types. It is hoped these classification systems can be used by resource managers to assess the ecology of the sites and develop integrated management plans within each region. This guide represents the analysis of 1110 plots described within the Dry Mixedwood subregion. The dominant plant species, canopy cover, soils and environmental conditions are outlined for each type. Included in this approximation is a crosswalk table to the Alberta...

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Method comparison and method calibration applicable to forest measurements and model predictions

Description

In forest mensuration, forest inventory and forest modeling, it is common to compare the agreement between two sets of quantitative measurements. One set could be from a commonly-accepted... More ≫

Description

In forest mensuration, forest inventory and forest modeling, it is common to compare the agreement between two sets of quantitative measurements. One set could be from a commonly-accepted reference method, the other from a new or alternative method, device, or model. If the measurements are statistically the same or practically "close enough" to each other, the more complex, more destructive and/or costly method can be replaced by the simpler, less destructive and/or more efficient method. Traditional statistical approaches used for such comparisons based on bias, correlation coefficient, coefficient of determination and significance tests are inadequate and not really relevant for agreement analysis. Various agreement measures proposed for agreement analysis are also insufficient and not pertinent in many respects. An alternative approach based on the limits of agreement proposed by Bland and Altman (1986) is introduced and demonstrated in this study, along with the method...

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Planning and reporting requirements for tree improvement

Description

This directive clarifies the planning, reporting, and monitoring requirements for deploying improved seed. It consolidates improved seed deployment requirements outlined in other policy documents... More ≫

Description

This directive clarifies the planning, reporting, and monitoring requirements for deploying improved seed. It consolidates improved seed deployment requirements outlined in other policy documents into a single reference document and is applicable to all timber disposition holders in the Green Area of Alberta with reforestation obligations.

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