ISSN:
1546-1696
Source:
Nature Archives 1869 - 2009
Topics:
Biology
,
Process Engineering, Biotechnology, Nutrition Technology
Notes:
[Auszug] In the U.S., about one out of every three acres, or some 740 million acres, are forested. Preservation of America's forests has been a perpetual struggle. By the time the Europeans began settling in America in the 1500s, forestry experts estimate that no more than 40 percent of the forests were ...
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1038/nbt0394-234
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