This is a perspective review authored by peatland scientists, microbial ecologists, land managers and non-governmental organisations who were attendees at a series of three workshops held at The University of Manchester in 2019-2020. Here we review the impacts of climate change (search criteria for references are given in the introduction …
Shrub encroachment is occurring in many of the world’s drylands, but its impacts on ecosystem structure and function are still poorly understood. In particular, it remains unclear how shrub encroachment affects dryland soil surfaces, including biological soil crust (biocrust) communities. In this study, soil surfaces (0–1 cm depth) were sampled from …
Peatlands are Important global carbon stores but are also sensitive climatically controlled ecosystems dependent on the maintenance of high water tables. Consequently they are under threat in warmer drier future climate conditions. The natural resilience of peatland systems and the potential to engineer resilience through peatland restoration are therefore important …
Basal ice is a significant sub-glacial component of glaciers and ice sheets that arises from ice-bedrock/substrate interaction.
Dryland soils are particularly vulnerable to erosion because of low plant cover and low organic matter which is linked with water availability and biological constraints. It is increasingly recognised that dryland soils can be managed to minimise erosion, which has benefits such as increasing soil fertility, carbon storage, and prevention …
We present the first assessment of microbial cell discharge from sediment-laden glacier basal ice. At Svínafellsjökull, a temperate valley glacier in Iceland, approximately 1017 cells a−1 are transferred through basal ice to the proglacial environment, and between 101 and 106 cells g−1 basal ice were cultured from our samples under …
Sub-glacial microbes are receiving increased attention due to their central roles in storage and release of greenhouse gases, such as methane and CO2. Climate change driven warming and resulting glacier retreat exposes bedrock that can contribute to soil formation in which subglacial-released microorganisms may play a crucial role. Basal ice, …
Peatlands are under threat from land management, anthropogenic pollution and climate change. These factors are implicated in severe degradation of ombrotrophic peatlands in the Southern Pennines of northern England. Significant areas of unconsolidated bare peat are both highly vulnerable to peat erosion and resistant to natural re-vegetation. Restoration efforts during …
The UK hosts 15-19% of global upland ombrotrophic (rain fed) peatlands that are estimated to store 3.2 billion tonnes of carbon and represent a critical upland habitat with regard to biodiversity and ecosystem services provision. Net production is dependent on an imbalance between growth of peat-forming Sphagnum mosses and microbial …
Upland peatlands receive the majority of their ecosystem inputs through precipitation, which delivers not only moisture but also atmospheric gases and particulates. Pristine peatlands are characterised by nutrient limitation, leading to the establishment of oligotrophic organism communities both above- and below-ground. Sphagnum mosses in particular thrive, and their presence promotes …