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Mechanisms of base-cation depletion by acid deposition in forest soils of the northeastern U.S.Author(s): Gregory B. Lawrence; Mark B. David; Walter C. Shortle; Scott W. Bailey; Gary M. Lovett
Source: In: Horsley, Stephen B.; Long, Robert P., eds. Sugar maple ecology and health: proceedings of an international symposium; 1998 June 2-4; Warren, PA. Gen. Tech. Rep. NE-261. Radnor, PA: U.S. Department of Agriculture, Forest Service, Northeastern Research Station: 75-87.
Publication Series: Other
Station: Northeastern Research Station
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DescriptionSeveral studies have indicated a long-term decrease in exchangeable Ca in forest soils within the northeastern Unrted States, but the regional extent of these decreases and the importance of acid deposition as a cause has not been fully resolved. Results, from two recently completed studies have provided the opportunity to further investigate the role of acid deposition in depletion of base cations in northeastern forest soils. These two studies entailed 1) a survey of soils in northeastern red spruce (Picea rubens Sarg.) stands, whtch were selected to encompass the range of environmental conditions to which this species is subjected, and 2) a study of base-cation leaching in soiis of a hardwood watershed in the Catskill Mountains of New York.
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CitationLawrence, Gregory B.; David, Mark B.; Shortle, Walter C.; Bailey, Scott W.; Lovett, Gary M. 1999. Mechanisms of base-cation depletion by acid deposition in forest soils of the northeastern U.S. In: Horsley, Stephen B.; Long, Robert P., eds. Sugar maple ecology and health: proceedings of an international symposium; 1998 June 2-4; Warren, PA. Gen. Tech. Rep. NE-261. Radnor, PA: U.S. Department of Agriculture, Forest Service, Northeastern Research Station: 75-87.
- Acidic deposition, cation mobilization, and biochemical indicators of stress in healthy red spruce
- Disruption of calcium nutrition at Hubbard Brook Experimental Forest (New Hampshire) alters the health and productivity of red spruce and sugar maple trees and provides lessons pertinent to other sites and regions
- Calcium addition at the Hubbard Brook Experimental Forest reduced winter injury to red spruce in a high-injury year
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