Forest Statistics for the Northern Mountains of Virginia, 1992.

摘要

Since 1986, area of timberland in the Northern Mountains of Virginia declined less than 1 percent and currently totals 2.5 million acres. Non-industrial private forest landowners control 56 percent of this timberland, less than that for most other survey units of the Southeast. Nearly 10,000 acres were harvested annually, while 10,000 acres yearly were regenerated mostly by natural means. Volume of hardwood growing stock increased nearly 8 percent to 3.6 billion cubic feet. Volume of softwood growing stock increased 8 percent to 0.7 billion cubic feet. Net annual growth of hardwood growing stock declined 6 percent to 71 million cubic feet. Softwood growth rose 15 percent to 14 million cubic feet. Annual removals of hardwood growing stock increased 50 percent to 30 million cubic feet; softwood removals were up 62 percent to 5 million cubic feet. Annual mortality of hardwood growing stock increased 25 percent to 25 million cubic feet. Annual softwood mortality was up 4 percent to 6 million cubic feet.