森林和森林以外的树木提供种类广范的木材和非木材林产品。
Forests and trees outside forests provide a wide range of wood and non-wood forest products.
木材和非木材森林产品的生产是全球34%森林的主要功能。
The production of wood and non-wood forest products is the primary function for 34 percent of the world's forests.
据美国西部木材产品协会和南方森林产品协会的统计，2005年，美国木材生产创下405亿板英尺的最高产量，到2009年骤减到234亿板英尺。
U.S. lumber production peaked at 40.5 billion board feet in 2005 and plunged to 23.4 billion in 2009, according to Western Wood Products Association and Southern Forest Products Association estimates.
应用推荐