Effects of excess nitrogen on biogeochemistry of a temperate hardwood forest: Evidence of nutrient redistribution by a forest understory species
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- 作者：Frank S. Gilliama ; gilliam@marshall.edu" class="auth_mail" title="E-mail the corresponding author ; Jake H. Billmyera ; Christopher A. Walterb ; William T. Peterjohnb
- 关键词：Foliar nutrients ; Nitrogen saturation ; Viola ; Rubus ; Calcium ; Manganese ; Nutrient redistribution
- 刊名：Atmospheric Environment
- 出版年：2016
- 出版时间：December 2016
- 年：2016
- 卷：146
- 期：Complete
- 页码：261-270
- 全文大小：1693 K
文摘
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Excess nitrogen (N) deposition negatively impacts eastern U.S. hardwood forests.
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Our study studied biogeochemical effects via foliar analysis of herb layer species.
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Aerial N additions were made to an entire watershed for a 25-yr period.
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Early-dominant Viola and late-dominant Rubus were higher in N, lower in Ca.
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N-mediated increases in Rubus appeared to redistribute Mn to surface soils.