What question did this study set out to answer?

To review how advances in analytical techniques challenge traditional assumptions that soil organic matter persistence is dictated by chemical recalcitrance rather than spatial accessibility.

February 14, 2012Global Change Biology

Soil organic matter turnover is governed by accessibility not recalcitrance

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To review how advances in analytical techniques challenge traditional assumptions that soil organic matter persistence is dictated by chemical recalcitrance rather than spatial accessibility.
Synthesized advances in quantitative analytical techniques evaluating soil organic matter composition and turnover dynamics.
Assessed theoretical assumptions underlying refractory carbon pools within established simulation models, including RothC and Century.
Biomolecular properties and intrinsic chemical recalcitrance fail to predict the mean residence times of slow and passive soil carbon pools.
Physical accessibility of organic substrates to microbial decomposers and extracellular enzymes governs decomposition rates across terrestrial soils.

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Implication

Review uncovers that soil organic matter turnover depends on physical accessibility rather than chemical recalcitrance, highlighting the need for improved carbon models.

Cite This Study

Dungait et al. (2012) studied this question.

synapsesocial.com/papers/69d89dc18cb8f39931ae368d https://doi.org/10.1111/j.1365-2486.2012.02665.x

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Implication

Review uncovers that soil organic matter turnover depends on physical accessibility rather than chemical recalcitrance, highlighting the need for improved carbon models.

Soil organic matter turnover is governed by accessibility not recalcitrance

Key Points

Discussion

Implication

Cite This Study

Soil organic matter turnover is governed by accessibility not recalcitrance

Key Points

Discussion

Implication

Cite This Study

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