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New Insights into Calcium Depletion in Northeastern Forests

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Acid rain and repeated harvests reduce the amount of calcium available for forest growth. Ecosystem budgets suggest that the exchangeable Ca pool is insufficient for forest regeneration, yet young stands appear to mobilize more than enough Ca from the soil to meet their needs. Extractions of soil parent materials indicate that apatite provides a previously unappreciated source of plant-available Ca for forests in New Hampshire, upstate New York, and Maine with granitoid parent materials. The threat of Ca depletion may not be as grave as previously predicted on these soil types. In contrast, apatite is not important at sites in Pennsylvania with sedimentary parent materials.
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Keywords: acid rain; apatite weathering; environmental management; forest; forest management; forest resources; forestry; forestry research; forestry science; natural resource management; natural resources; nutrient cycling

Document Type: Regular Article

Affiliations: 1: Associate Professor Department of Forestry and National Resources Management State University of New York College of Environmental Science and Forestry (SUNY-ESF) Syracuse NY 13210, Email: [email protected] 2: Professor Department of Geological Sciences University of Michigan Ann Arbor MI 48109-1063, Email: [email protected] 3: Ittleson Associate Professor Center for Environmental Studies Brown University Providence RI 02912 steven_, Email: [email protected] 4: Associate Professor Department of Forestry University of Kentucky Lexington KY 40546, Email: [email protected] 5: Ph.D. CandidateDepartment of Geological Sciences University of Michigan Ann Arbor MI 48109-1063, Email: [email protected] 6: Lecturer and Director of Field Studies School of Forestry and Environmental Studies Yale University New Haven CT 06511, Email: [email protected]

Publication date: 2005-01-01

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  • The Journal of Forestry is the most widely circulated scholarly forestry journal in the world. In print since 1902, the Journal has received several national awards for excellence. The mission of the Journal of Forestry is to advance the profession of forestry by keeping forest management professionals informed about significant developments and ideas in the many facets of forestry: economics, education and communication, entomology and pathology, fire, forest ecology, geospatial technologies, history, international forestry, measurements, policy, recreation, silviculture, social sciences, soils and hydrology, urban and community forestry, utilization and engineering, and wildlife management. The Journal is published bimonthly: January, March, May, July, September, and November.

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    June 1, 2016 to Feb. 28, 2017

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