Table 1. Total inventory of trees and harvest level on MRC forestlands by year. Year Harvest (million board feet) Estimated inventory (million board feet) 1998 35.8 2,142 1999 38.9 2,187 2000 36.8 2,237 2001 31.6 2,294 2002 26.1 2,358 2003 28.9 2,416 2004 30.5 2,553 2005 33.1 2,608 2006 37.1 2,676 2007 38.5 2,727 Inventory foresters also track forest habitat types. Table 2 shows acreages in each of five habitat types (hardwoods; small mixed hardwoods/conifers; medium to large mixed hardwoods/conifers; small conifers; and medium to large conifers). Table 2. Acreage in five habitat types on MRC forestlands, 2007. Structure class Average tree size Acreage Hardwoods All 7,919 Small mixed hardwoods/conifers < 16" dbh 7,551 Medium to large mixed hardwoods/conifers > 16" dbh 90,745 Small conifers < 16" dbh 50,415 Medium to large conifers > 16" dbh 67,777 High conservation value areas are areas with unique qualities or which provide habitat for sensitive species. These areas are mapped by inventory block in the maps and charts section. The picture at the left shows a northern spotted owl core area from the perimeter. Such core areas provide shade and protective cover for northern spotted owls and other species. Table 3. Acreages of high conservation value areas on MRC forestlands, 2007. Area type Acreage % of land Description Type I old growth 106 < 1% Unharvested old growth stands, generally larger than 20 acres. Type II old growth 670 <1% Previously harvested old growth stands at least 3 acres in size. Pygmy forest 730 < 1% Forests of generally dwarfed conifers which exist near the Pacific coastline containing many rare plants. Oak woodland 1,158 <1% Forests of true oaks and Douglas-fir, interspersed with grasslands. Rocky outcrop 62 <1% Outcroppings of rock that provide habitat for peregrine falcons and other rare species. Class I WLPZ 15,274 7% Watercourse buffers for large streams and rivers. Large Class II WLPZ 6,188 3% Watercourse buffers for streams carrying aquatic life with > 100 acre watershed. Small Class II WLPZ 6,372 3% Watercourse buffers for streams carrying aquatic life with < 100 acre watershed Northern spotted owl core areas 16,537 7% Protective buffers for northern spotted owl activity centers. Marbled murrelet zone in Lower Alder Creek 1,300 <1% Area managed specifically for retention of current murrelets as well as acceleration of growth of habitat in adjacent areas. Conservation easements 1,076 <1% Easements on our forestlands to maintain specific values. Carbon sequestration 341 <1% Forest units managed for the retention of and increase of carbon storage. Visual 3,552 <1% Management in these areas prioritizes aesthetic values. Total 53,312 = 23%   Snags and downed logs are tracked during inventory surveys of the forest. Snags and downed logs are important forest attributes for a variety of wildlife species. Foresters retain these attributes and other trees with valuable wildlife characteristics. The picture at the left shows two snags in the Albion inventory block. Table 4. Average number of snags and downed logs across MRC forestlands, 2007 Average # of snags per acre Average # of downed logs per acre 0.19 7.7