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UrduPolyphenols are generally toxic to microorganisms. In peatlands, scientists thought microorganisms avoided this toxicity by degrading polyphenols using an oxygen-dependent enzyme, and thus that low-oxygen conditions inhibit microbes’ carbon cycling.
Tag: peatlands
Rising Temperatures Alter ‘Missing Link’ of Microbial Processes, Putting Northern Peatlands at Risk
Georgia Tech researchers show that rising temperatures in northern regions may damage peatlands: critical ecosystems for storing carbon from the atmosphere — and could decouple vital processes in microbial support systems.
Are New Carbon Sinks Appearing in The Arctic?
Global warming can result in the spread of peatland vegetation in the Arctic. An international research group has discovered signs of ‘proto-peat’, which may be the beginning of new peatlands.
Researchers reveal complex ecosystem changes cause more greenhouse gases to be emitted from peatlands
Peatlands, which make up 3 percent of Earth’s total land area, are known by a number of names — moors, mires, bogs, swamps and portions of permafrost tundra. They also store a significant amount of the Earth’s carbon. A research team from Florida State University and Georgia Institute of Technology are paying close attention to these complicated systems because they’ve found that the warming Earth is stimulating complex ecosystem changes with the end result of even more greenhouse gases being released into the air.
Peatlands pose complex, poorly understood fire risk, researchers warn
Five years after the disastrous wildfire in Fort McMurray, Alberta, researchers are warning that the complex role of peatlands, a factor critical to projecting the risk and behaviour of future fires, is missing from the forecasting model.
Large boreal peatland complexes near their southern range limit are likely threatened by warmer climate
In the Adirondacks, the black spruce, tamarack, and other boreal species are being overcome by trees normally found in warmer, more temperate forests. These invaders could overtake a variety of northern species, eliminating trees that have long been characteristic of Adirondack wetlands.
Evaporating northern bogs threaten to intensify fires and global warming
A group of 59 international scientists, led by researchers at Canada’s McMaster University, has uncovered new information about the distinct effects of climate change on boreal forests and peatlands, which threaten to worsen wildfires and accelerate global warming.