作者
Bonnie G Waring, Rachel Adams, Sara Branco, Jennifer S Powers
发表日期
2016/1
期刊
New Phytologist
卷号
209
期号
2
页码范围
845-854
简介
  • Rates of ecosystem nitrogen (N) cycling may be mediated by the presence of ectomycorrhizal fungi, which compete directly with free‐living microbes for N. In the regenerating tropical dry forests of Central America, the distribution of ectomycorrhizal trees is affected by succession and soil parent material, both of which may exert independent influence over soil N fluxes.
  • In order to quantify these interacting controls, we used a scale‐explicit sampling strategy to examine soil N cycling at scales ranging from the microsite to ecosystem level. We measured fungal community composition, total and inorganic N pools, gross proteolytic rate, net N mineralization and microbial extracellular enzyme activity at multiple locations within 18 permanent plots that span dramatic gradients of soil N concentration, stand age and forest composition.
  • The ratio of inorganic to organic N cycling was correlated with variation in fungal …
引用总数
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