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Journal ArticleDOI

Global-Scale Similarities in Nitrogen Release Patterns During Long-Term Decomposition

TLDR
It is suggested that fundamental constraints on decomposer physiologies lead to predictable global-scale patterns in net N release during decomposition.
Abstract
Litter decomposition provides the primary source of mineral nitrogen (N) for biological activity in most terrestrial ecosystems. A 10-year decomposition experiment in 21 sites from seven biomes found that net N release from leaf litter is dominantly driven by the initial tissue N concentration and mass remaining regardless of climate, edaphic conditions, or biota. Arid grasslands exposed to high ultraviolet radiation were an exception, where net N release was insensitive to initial N. Roots released N linearly with decomposition and exhibited little net N immobilization. We suggest that fundamental constraints on decomposer physiologies lead to predictable global-scale patterns in net N release during decomposition.

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Citations
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Journal ArticleDOI

New handbook for standardised measurement of plant functional traits worldwide

TL;DR: This new handbook has a better balance between whole-plant traits, leaf traits, root and stem traits and regenerative traits, and puts particular emphasis on traits important for predicting species’ effects on key ecosystem properties.
Journal ArticleDOI

Plant species traits are the predominant control on litter decomposition rates within biomes worldwide

TL;DR: The magnitude of species-driven differences is much larger than previously thought and greater than climate-driven variation, and the decomposability of a species' litter is consistently correlated with that species' ecological strategy within different ecosystems globally, representing a new connection between whole plant carbon strategy and biogeochemical cycling.
Journal ArticleDOI

Microbial control over carbon cycling in soil.

TL;DR: The phylogenetic level at which microbes form meaningful guilds is considered, based on overall life history strategies, and it is suggested that these are associated with deep evolutionary divergences, while much of the species-level diversity probably reflects functional redundancy.
Journal ArticleDOI

Ecoenzymatic stoichiometry of microbial organic nutrient acquisition in soil and sediment

TL;DR: It is suggested that ecoenzymatic ratios reflect the equilibria between the elemental composition of microbial biomass and detrital organic matter and the efficiencies of microbial nutrient assimilation and growth.
References
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Journal ArticleDOI

Nitrogen limitation on land and in the sea: How can it occur?

TL;DR: In this paper, the authors examine both how the biogeochemistry of the nitrogen cycle could cause limitation to develop, and how nitrogen limitation could persist as a consequence of processes that prevent or reduce nitrogen fixation.
Journal ArticleDOI

Climate, leaf litter chemistry and leaf litter decomposition in terrestrial ecosystems : a triangular relationship

Rien Aerts
- 01 Sep 1997 - 
TL;DR: In this paper, the authors analyzed first-year leaf litter decomposition data from 44 locations, ranging from cool temperate sites to humid tropical sites, and found that the control of AET on litter decomposability is partly mediated through an indirect effect of Aet on litter chemistry.
Book

Driven By Nature: Plant Litter Quality and Decomposition

TL;DR: Pathways and processes in decomposition foraging, feeding and feedback manipulation of plant litter quality synchrony and soil organic matter - theory into practice?
Journal ArticleDOI

Litter decomposition and organic matter turnover in northern forest soils

TL;DR: It was found that N concentration had an overall effect on this limit value in no less than 130 cases investigated, meaning that the higher the N concentration in the fresh litter (the lower the C/N ratio) the more organic matter was left, and other nutrients were also correlated to the limit value.
Journal ArticleDOI

Global patterns in root decomposition: comparisons of climate and litter quality effects.

TL;DR: Root chemistry appeared to be the primary controller of root decomposition, while climate and environmental factors played secondary roles, in contrast to previously established leaf litter decomposition models.
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