The Colorado River And The State Of Colorado

Although the following statistics do not show any negative effects on the forests in the United States of America, without aggressive efforts to plant trees each year, the population will eventually experience the side effects of less tree production. According to the U.S. Forest Products Industry Statistics: • Of America 's 2.263 billion acres, forests cover 747 million acres (33 percent of the land base). • More than 244 million acres of federal land are set aside by various government agencies. • The U.S. contains 5 percent of the Earth 's forest cover. • Despite a 143 percent increase in population, the U.S. has about the same area of forestland today as it did in 1920. • The volume of wood in U.S. forests is about 25 percent greater today than it was 40 years ago. • Each year, 1.5 billion new trees are planted in the U.S. That 's more than five seedlings for each American and 2,000 for every bear. • U.S. forest planting currently averages about 2.4 million acres per year. • Annual forest growth has consistently exceeded harvest rates in the U.S. since the 1940s. • Forests of the Southern U.S. (from eastern Texas to northern Florida) have the highest biodiversity of any forests in North America. • Over the past decade, the U.S. forest products industry has spent more than $100 million on wildlife and environmental research. • The U.S. forest products industry employs