Tree Planting in the National Parks

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Species for Christmas Tree Planting in Virginia*

Christmas trees can be grown through out the state, and growers are located in all regions. Se lec tion of the proper species, however, is important. Soil conditions and gen er al climate are the primary considerations influencing species selection, but other characteristics, such as con sum er pref er ence, species characteristics and require ments, condition of the planting site, and the pres...

Tree Planting in the South: What Does the Future Hold?

Projected increasing demands for timber coupled with reduced harvests on public lands have led to concern among some forest policymakers regarding the adequacy of future U.S. timber supplies. One question concerns the likelihood that prevailing market incentives will induce industrial and nonindustrial private landowners to intensify forest management. We develop empirical models of historical ...

Exploitation of freshwater eels in National Parks

Mercury in Fish from National Parks

Mercury (Hg) is a toxic, global contaminant that threatens ecosystem and human health. Human activities have increased atmospheric concentrations 3-5 fold during the past 150 years. Airborne Hg enters environmental cycles in complex ways, resulting in the contamination of even remote places. The National Park Service (NPS) protects some of the most pristine and sensitive wilderness in North Ame...