A Decrease in Oak Litter Mass Changes Nutrient Dynamics in the Litter Layer of a Central Hardwood Forest
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- Kathryn B. Piatek
- Division of Forestry and Natural Resources, West Virginia University, Morgantown, WV 26506
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- Prinith Munasinghe
- Division of Forestry and Natural Resources, West Virginia University, Morgantown, WV 26506
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- William T. Peterjohn
- Department of Biology, West Virginia University, Morgantown, WV 26506
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- Mary Beth Adams
- Department of Biology, West Virginia University, Morgantown, WV 26506
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- Jonathan R. Cumming
- US Forest Service, Timber and Watershed Laboratory, Parsons, WV 26287
書誌事項
- 公開日
- 2010-09-01
- DOI
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- 10.1093/njaf/27.3.97
- 公開者
- Oxford University Press (OUP)
この論文をさがす
説明
<jats:title>Abstract</jats:title> <jats:p>The abundance of oak is declining in the central hardwood forest, resulting in structural and functional changes in the litter layer. We hypothesized that a decline in oak litter mass associated with a lower oak component will result in an increase in nutrient cycling rates in the litterlayer. To test this hypothesis, we compared mass loss and C, N, P, and Ca dynamics in pure oak litter and in litter made of 48% oak plus 52% five other deciduous species in a central hardwood forest in West Virginia. In 12 months of litter decomposition, pure oak litter decomposed more slowly,retained more C and N, immobilized more and subsequently did not release P, and released less Ca than litter consisting of 48% oak plus five other species. Annual stand-level nutrient fluxes in pure oak and in 48% oak plus five other species litter were correspondingly +4.1 and −4.4kg ha−1 N, +0.22 and −0.17 kg ha−1 P, and −9.3 and −16.7 kg ha−1 Ca. These results indicate that a decline in oak will cause more rapid nutrient cycling in the litter layer of affected central hardwood stands.</jats:p>
収録刊行物
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- Northern Journal of Applied Forestry
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Northern Journal of Applied Forestry 27 (3), 97-104, 2010-09-01
Oxford University Press (OUP)
