Research Bibliography
Found 13 results
Filters: Author is Witter, John A. [Clear All Filters]
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2005. Invertebrate Biodiversity in Northern Hardwood Ecosystems under Varying Disturbance Regimes. Beech Bark Disease: Proceedings of the Beech Bark Disease Symposium. Gen. Tech. Rep. NE-331:88-91.
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2000. Condition of hardwood forests in Michigan: 1991-1999. Technical Report 00-1
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2000. Protocol handbook for the Michigan Impact Monitoring System. Handbook 95-1
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1998. Environmental stress effects on vigor, mortality, and growth in northern hardwood forests along a pollution-climate gradient. The Michigan Academician. 30:27-47.
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1998. Forest health in the north central states. :31pp..
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1997. Is the forest healthy? North Central Region :10pp..
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1994. The Michigan impact monitoring system: baseline survey final report. Technical Report 94-2:35pp..
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1994. Studying the effects of air pollution on forest along exposure gradients: experiences in the United States and opportunities for cooperation. Climate and Atmospheric Deposition Studies in Forests. :109-115.
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1994. Sulfate adsorption in forest soils of the Great Lakes region. Soil Science Society of America Journal. 58:1546-1555.
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1992. Ion leaching in forest ecosystems along a Great Lakes air pollution gradient. Journal of Environmental Quality. 21:614-623.
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1991. Effects of an air pollution gradient on northern hardwood forests in the northern Great Lakes region. :54pp..
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1991. Soil solution chemistry and ion leaching in northern hardwood forests across an 800 km pollution gradient. Emerging Issues in Northern Hardwood Management: Air Pollution, Climate Change & Biodiversity. Miscellaneous Publication 91-1:38.