DOI: 10.1007/s10533-013-9931-4
Scopus记录号: 2-s2.0-84897383861
论文题名: Mycorrhizal associations of dominant trees influence nitrate leaching responses to N deposition
作者: Midgley M.G. ; Phillips R.P.
刊名: Biogeochemistry
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 117, 期: 2018-02-03 语种: 英语
英文关键词: Meta-analysis
; Mycorrhizal associations
; Nitrate leaching
; Nitrogen deposition
; Soil C:N
; Temperate forest
Scopus关键词: anthropogenic effect
; arbuscular mycorrhiza
; dominance
; ectomycorrhiza
; forest soil
; leaching
; meta-analysis
; nitrate
; nutrient enrichment
; soil carbon
; soil nitrogen
; temperate forest
; Arbuscular
英文摘要: Temperate forests receive some of the highest rates of nitrogen (N) deposition in the world. While numerous studies have investigated the effects of N enrichment on forests, there is little consensus on why some forests become N saturated while others do not. To investigate this, we used a multi-factor meta-analysis to simultaneously estimate the relative importance of several environmental, experimental, and anthropogenic variables on nitrate (NO3 -) leaching in response to experimental N addition. Given that overstory tree species composition and soil C:N ratio influence forest responses to N, we hypothesized that forests dominated by arbuscular mycorrhizal (AM) trees would respond differently than forests dominated by ectomycorrhizal (ECM) trees in the context of forest susceptibility to NO3 - leaching. We found that mycorrhizal association is an important predictor of NO3 - leaching, and AM-dominated forests leach more NO3 - in response to N deposition than ECM forests. Additionally, we found that the amount of total N added, ambient N deposition rates, and the form of N added influenced the magnitude of the NO3 - leaching response. Given that the mycorrhizal associations of most temperate trees are known, our results suggest that this functional grouping may be useful in identifying forests that are most susceptible to NO3 - leaching. © 2013 Springer Science+Business Media Dordrecht. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/83722
Appears in Collections: 气候减缓与适应 气候变化事实与影响
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作者单位: Department of Biology, Indiana University, 1001 E. Third St, Bloomington, IN, 47403, United States
Recommended Citation:
Midgley M.G.,Phillips R.P.. Mycorrhizal associations of dominant trees influence nitrate leaching responses to N deposition[J]. Biogeochemistry,2014-01-01,117(2018-02-03)