From the point-of-view of the variation and flexibility of the species such cultivated woody crops rank as no more than cornfields. While the tree farms are conveniently be stretched on the private lands, national forests those are considered priceless reservoirs of most of the biological diversity of the nation cannot expand so easily. The commercial logging is considered as the greatest danger for survival of the national forest system. The timber sales are growingly concealed beneath the post fire recovery and fire prevention missions, forest health initiatives and restoration programs. (Endangered Forests: Endangered Freedoms)

Wetlands disappearing

Declining wetlands and reservoir construction are having spectacular influences on a global scale. (the Importance of Wetlands and the Impacts of Reservoir Development) the data of USF & WS reveals that the United States added 2.3 million acres in ponds and inland mudflats during the period of mid 1950s and mid1970s. The country added...
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