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Articles 1 - 3 of 3
Full-Text Articles in Forest Sciences
Does Elevated Nitrogen And Sulfur Deposition Lead To Net Base Cation Losses In Northern New England Forest Soils?, Ivan J. Fernandez, Stephen A. Norton, Jeffrey Kahl, Lindsey E. Rustad
Does Elevated Nitrogen And Sulfur Deposition Lead To Net Base Cation Losses In Northern New England Forest Soils?, Ivan J. Fernandez, Stephen A. Norton, Jeffrey Kahl, Lindsey E. Rustad
University of Maine Office of Research Administration: Grant Reports
The aims of this research are to continue treatment and monitoring of a paired watershed experiment at Bear Brook in northern Maine, with an emphasis on changes in soil base cations, particularly calcium. Base cation depletion is well-recognised as a potential problem in soils that have been subjected to acidic N deposition but few data exist from well-controlled, long-term experiments. The Bear Brook watershed has been periodically treated with ammonium sulfate since the fall of 1989 and is believed to be approaching N saturation. Since 1993 the relationship between base cations and strong acid anions has changed, such that labile …
A Buried Spruce Forest Provides Evidence At The Stand And Landscape Scale For The Effects Of Environment On Vegetation At The Pleistocene/Holocene Boundary, Douglas D. Stokke
A Buried Spruce Forest Provides Evidence At The Stand And Landscape Scale For The Effects Of Environment On Vegetation At The Pleistocene/Holocene Boundary, Douglas D. Stokke
Douglas D. Stokke
Due to a unique set of circumstances, we were able to excavate an entire spruce (Picea) forest in Michigan's Upper Peninsula, USA, which was buried in the early Holocene (9928 ± 133 uncalibrated 14C years bp). Trees ranged from < 5 cm to > 50 cm in diameter, and dominants were approximately 9 m tall. The stand was multi-aged, with a maximum tree age of 145 years. Well-preserved stem cross-sections (n = 140) were recovered and the entire stand was mapped. Stand reconstruction combined with pollen and sediment analysis revealed a pure spruce forest in the sandy lowlands surrounded by hills dominated by pine, oak …
Developing Sustainable Management Policy For The National Elk Refuge, Wyoming, Tim W. Clark, Denise Casey, Anders Halverson
Developing Sustainable Management Policy For The National Elk Refuge, Wyoming, Tim W. Clark, Denise Casey, Anders Halverson
Yale School of the Environment Bulletin Series
No abstract provided.