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Michelle O. Johnson

Researcher at University of Leeds

Publications -  5
Citations -  438

Michelle O. Johnson is an academic researcher from University of Leeds. The author has contributed to research in topics: Erosion & Bioturbation. The author has an hindex of 4, co-authored 5 publications receiving 370 citations.

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Hyperdominance in Amazonian forest carbon cycling

Sophie Fauset, +97 more
TL;DR: It is found that dominance of forest function is even more concentrated in a few species than is dominance of tree abundance, with only ≈1% of Amazon tree species responsible for 50% of carbon storage and productivity.
Journal ArticleDOI

Variation in stem mortality rates determines patterns of above-ground biomass in Amazonian forests: implications for dynamic global vegetation models

Michelle O. Johnson, +81 more
TL;DR: It is found that woody NPP is not correlated with stem mortality rates and is weakly positively correlated with AGB, and across the four models, basin‐wide average AGB is similar to the mean of the observations.
Journal ArticleDOI

Quantifying the rate and depth dependence of bioturbation based on optically‐stimulated luminescence (OSL) dates and meteoric 10Be

TL;DR: In this article, the relationship between mixing rate and depth in a bioturbated soil in northeast Queensland, Australia using a novel method combining OSL (optically stimulated luminescence) ages and meteoric beryllium-10 (10Be) inventories was investigated.
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Insights into biogeochemical cycling from a soil evolution model and long-term chronosequences

TL;DR: In this article, a model for predicting soil evolution over geological timescales is presented, which includes the major processes of pedogenesis: mineral weathering, percolation of rainfall, leaching of solutes, surface erosion, bioturbation, the effects of vegetation in terms of organic matter input and nutrient cycling and can be applied to various bedrock compositions and climates.