Soil is a non-renewable resource which sustains life and delivers countless beneficial ecosystem services that we need and take for granted. The microbial diversity of soil dwarfs above-ground plant diversity, but is intimately linked with it. Whilst macroscopic ecology is a well-developed discipline that supports our efforts to manage and …
The Tour de France this week traversed the peak of Holme Moss at 524 m as Stage 2 passed through the peatlands of the Southern Pennines from Yorkshire and into Derbyshire. As Blel Kadri led the other riders over the summit the quality of the soil could not have been further from their minds. …
The statistical analyses for our recent paper on the bacterial communities of biological soil crusts in the Kalahari can be fully examined and reproduced via code and data I have deposited on GitHub. The analysis relies heavily on the phyloseq package for R. The phyloseq paper and associated documentation were really an inspiration, and …
The Kalahari of southern Africa is characterised by sparse vegetation interspersed with microbe-dominated biological soil crusts (BSC) which deliver a range of ecosystem services including soil stabilisation and carbon fixation. We characterised the bacterial communities of BSCs (0–1 cm depth) and the subsurface soil (1–2 cm depth) in an area typical of …
The carbon cycle in salt pans is complex and poorly understood. Field-based data are needed to improve regional estimates of C storage and land–atmosphere CO2 fluxes from dryland environments where pans are prevalent. This paper provides a first estimate of C stores and CO2 efflux within the salt pan, grassland and woodland …
The Kalahari of southern Africa is characterised by sparse vegetation interspersed with biological soil crusts which deliver a range of ecosystem services including soil stabilisation and carbon fixation. The crusts vary in morphology from barely aggregated sand grains, to strongly aggregated thick crusts with dark pigmentation. Crust morphology and development …
Soil pore and particle matrices both facilitate and constrain soil-atmosphere exchange of heat, moisture and gas. Further, in soils covered by Biological Soil Crusts (BSCs), soil structure differs in the BSC (<1cm) and near surface layers. Soil-atmosphere gas exchange occurs primarily by diffusion, moisture flow by capillarity and hydrostatic pressure, …