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A multiresource inventory of the Willow block, Susitna River basin inventory unit, was conducted in 1978. Statistics on forest area, timber volumes, and growth and mortality from this inventory are presented. Timberland area is estimated at 230,200 acres and net growing stock volume, mostly birch, at 231.9 million cubic feet. Net annual growth of growing stock is estimated at 7.4 million cubic feet and annual mortality at 742,000 cubic feet.

Statistics on forest area, total gross and net timber volumes, and annual net growth and mortality are presented for the 1971-75 timber inventory of the Tanana unit, Alaska. This report summarizes statistics previously published for the four inventory blocks of the unit: Fairbanks, Kantishna, Upper Tanana, and Wood-Salcha. Timberland area is estimated at 2.19 million acres (888 164 ha), net growing stock volume at 2.27 billion cubic feet (64.36 million m3), and annual net growth and mortality at 61.34 and 6.14 million cubic feet (1.74 and 0.17 million m3), respectively.

A multiresource inventory of the Talkeetna block, Susitna River basin inventory unit, was conducted in 1979. Statistics on forest area, timber volumes, and growth and mortality from this inventory are presented. Timberland area is estimated at 562,105 acres and net growing stock volume, mostly hardwood, at 574.7 million cubic feet. Net annual growth of growing stock is estimated at 13.6 million cubic feet and annual mortality at 2.7 million cubic feet.

Statistics on forest area, total gross and net timber volumes, and annual net growth and mortality are presented from the 1974 timber inventory of the Ketchikan. unit, Alaska. Timberland area is estimated at 1.16 million acres (470 040 ha), net growing stock volume at 6.39 billion cubic feet (181.04 million m3), and annual net growth and mortality at -33.12 million cubic feet and 55.56 million cubic feet (-0.94 and 1.57 million m3), respectively.

Public and private agencies are cooperating in a study of eight thinning regimes in young Douglas-fir stands. Regimes differ in the amount of basal area allowed to accrue in growing stock at each successive thinning. All regimes start with a common level-of-growing-stock which is established by a conditioning thinning. Thinning interval is controlled by height growth of crop trees, and a single type of thinning is prescribed. Nine study areas, each involving three completely random replications of each thinning regime and an unthinned control, have been established in western Oregon and...

The relationships of terrestrial vertebrates to plant communities, structural conditions, and special habitats in the Great Basin of southeastern Oregon are described in a series of appendices. The importance of habitat components to wildlife and the predictability of management activities on wildlife are examined in terms of managed rangelands. The derivation and use of these appendices are described in a companion publication, Gen. Tech. Rep. PNW-GTR-172. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station.

The relationships of terrestrial vertebrates to plant communities, structural conditions, and special habitats in the Great Basin of southeastern Oregon are described. The importance of habitat components to wildlife and the predictability of management activities on wildlife are examined in terms of managed rangelands. The paper does not provide guidelines but rather shows a method of determining the consequences of potential management actions. The series of relationships discussed in Part 1 are given in the appendices that are in a companion publication, General Technical Report...

This paper presents 15-year results of one installation of a west-wide study of growing-stock levels in even-aged ponderosa pine. Growth was related to growing-stock level in a 65-year-old pole stand on an above average site. Periodic growth is presented for 10 years after the initial thinning and for 5 years after a second thinning to six assigned growing-stock levels.Annual growth in diameter during the 5 years after initial thinning ranged from an average of about 0.28 inch at the lowest growing-stock level to 0.10 at the highest. These rates increased slightly during the following...

Chips from Alaska hemlock and spruce trees blown down more than 10 years produced usable grades of viscose pulp. Yields of pulp from both species were about 2 percent lower for blowdown material than for control trees. Ash content was slightly higher in the pulp manufactured from blowdown timber than in pulp from control trees.

A 43-year-old, even-aged stand of advance reproduction of grand fir and Shasta red fir in central Oregon responded to release and thinning with diameter and height growth two to three times the prerelease rate. The response began immediately after the overstory was killed with 2,4-D. Diameter growth during the second 5 years after release increased significantly over that of the first 5 years. Differences in spacing had no effect on growth. Increased growth after release suggests that saving advance true fir reproduction is desirable under certain conditions.