Response of Oxidative Enzyme Activities to Nitrogen Deposition Affects Soil Concentrations of Dissolved Organic Carbon

@article{Waldrop2004ResponseOO,
  title={Response of Oxidative Enzyme Activities to Nitrogen Deposition Affects Soil Concentrations of Dissolved Organic Carbon},
  author={Mark P. Waldrop and Donald R. Zak},
  journal={Ecosystems},
  year={2004},
  volume={9},
  pages={921-933}
}
Recent evidence suggests that atmospheric nitrate (NO3−) deposition can alter soil carbon (C) storage by directly affecting the activity of lignin-degrading soil fungi. In a laboratory experiment, we studied the direct influence of increasing soil NO3− concentration on microbial C cycling in three different ecosystems: black oak–white oak (BOWO), sugar maple–red oak (SMRO), and sugar maple–basswood (SMBW). These ecosystems span a broad range of litter biochemistry and recalcitrance; the BOWO… Expand

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References

SHOWING 1-10 OF 41 REFERENCES
Microbial community response to nitrogen deposition in northern forest ecosystems
The productivity of temperate forests is often limited by soil N availability, suggesting that elevated atmospheric N deposition could increase ecosystem C storage. However, the magnitude of thisExpand
NITROGEN DEPOSITION MODIFIES SOIL CARBON STORAGE THROUGH CHANGES IN MICROBIAL ENZYMATIC ACTIVITY
Atmospheric nitrogen (N) deposition derived from fossil-fuel combustion, land clearing, and biomass burning is occurring over large geographical regions on nearly every continent. Greater ecosystem NExpand
MICROBIAL ENZYME SHIFTS EXPLAIN LITTER DECAY RESPONSES TO SIMULATED NITROGEN DEPOSITION
TLDR
It is found that extracellular enzyme responses of a forest-floor microbial community to chronically applied aqueous NH4NO3 can explain both increased and decreased litter decomposition rates caused by added N. Expand
Nitrogen availability effects on carbon mineralization, fungal and bacterial growth, and enzyme activities during decomposition of wheat straw in soil
Abstract Our objectives were (1) to investigate the response of wheat (Triticum aestivum L.) straw decomposition to increasing nitrogen availability (0.5, 0.8, 1.2 and 1.9% N of straw dry matter) inExpand
Influence of carbon and nitrogen on cellulose and lignin degradation in forest soils
TLDR
The concentration of lignin in plant tissue is a major factor controlling organic matter decomposition rates in terrestrial ecosystems and as C and N concentrations increased, active fungal biom... Expand
Fungal Degradation of Lignin
Of all naturally produced organic chemicals, lignin is probably the most recalcitrant. This is consistent with its biological functions, which are to give vascular plants the rigidity they need toExpand
Effects of carbon and nitrogen supplementation on lignin and cellulose decomposition by a Streptomyces.
TLDR
Effects of nitrogen source and concentration and organic carbon cosubstrates on lignin and cellulose degradation by Streptomyces badius strain 252 were examined using 14C-labeled substrates prepared from Pseudotsuga menziesii twigs and were shown to be specific ion effects on polymer degradation and not simply a salt concentration effect on cellular growth. Expand
Acidification effects on dissolved organic matter mobility in spruce forest ecosystems
Fluxes and composition of dissolved organic matter (DOM) were compared at three differently acid-loaded podzolic forest soils in the Fichtelgebirge, Bavaria, Germany. DOC fluxes are highest in allExpand
Resource control on the production of dissolved organic carbon and nitrogen in a deciduous forest floor
Abstract The forest floor in temperate forests has become recognized for its importance in the retention of elevated inputs of dissolved inorganic nitrogen (DIN) and as a source of dissolved organicExpand
Effects of Chronic Nitrogen Amendments on Production of Dissolved Organic Carbon and Nitrogen in Forest Soils
Chronic N deposition has been hypothesized to affect DOC production in forest soils due to the carbon demand exerted by microbial immobilization of inorganic N. We tested this hypothesis in fieldExpand
...
1
2
3
4
5
...