CORVALLIS – Studies of pristine forests in South America found that the cycling of nitrogen, an essential nutrient, was quite different than expected, and it suggests that many forests of North America and Europe actually have an unnatural ecology driven largely by air pollution, acid rain and artificial nitrogen fertilization.
The above story is based on materials provided by Oregon State University. Note: Materials may be edited for content and length.
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Oregon State University. "U.S. Forests May Be Products Of Pollution." ScienceDaily. ScienceDaily, 15 March 2002. <www.sciencedaily.com/releases/2002/03/020315072153.htm>.
Oregon State University. (2002, March 15). U.S. Forests May Be Products Of Pollution. ScienceDaily. Retrieved March 10, 2014 from www.sciencedaily.com/releases/2002/03/020315072153.htm
Oregon State University. "U.S. Forests May Be Products Of Pollution." ScienceDaily. www.sciencedaily.com/releases/2002/03/020315072153.htm (accessed March 10, 2014).