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Peat is an accumulation of partially decayed vegetation or organic matter. It is unique to natural areas called peatlands, bogs, mires, moors, or muskegs. Sphagnum moss, also called peat moss, is one of the most common components in peat, although many other plants can contribute. The biological features of sphagnum mosses act to create a habitat aiding peat formation, a phenomenon termed 'habitat manipulation'. Soils consisting primarily of peat are known as histosols. Peat forms in wetland conditions, where flooding or stagnant water obstructs the flow of oxygen from the atmosphere, slowing the rate of decomposition. Peat properties such as organic matter content and saturated hydraulic conductivity can exhibit high spatial heterogeneity.
A bog or bogland is a wetland that accumulates peat as a deposit of dead plant materials – often mosses, typically sphagnum moss. It is one of the four main types of wetlands. Other names for bogs include mire, mosses, quagmire, and muskeg; alkaline mires are called fens. A baygall is another type of bog found in the forest of the Gulf Coast states in the United States. They are often covered in heath or heather shrubs rooted in the sphagnum moss and peat. The gradual accumulation of decayed plant material in a bog functions as a carbon sink.
Sphagnum is a genus of approximately 380 accepted species of mosses, commonly known as sphagnum moss, also bog moss and quacker moss. Accumulations of Sphagnum can store water, since both living and dead plants can hold large quantities of water inside their cells; plants may hold 16 to 26 times as much water as their dry weight, depending on the species. The empty cells help retain water in drier conditions.
Sir Harry Godwin, FRS was a prominent English botanist and ecologist of the 20th century. He is considered to be an influential peatland scientist, who coined the phrase "peat archives" in 1981. He had a long association with Clare College, Cambridge.
A peatland is a type of wetland whose soils consist of organic matter from decaying plants, forming layers of peat. Peatlands arise because of incomplete decomposition of organic matter, usually litter from vegetation, due to water-logging and subsequent anoxia. Like coral reefs, peatlands are unusual landforms that derive mostly from biological rather than physical processes, and can take on characteristic shapes and surface patterning.
Pauline Yvonne Ladiges is a botanist whose contributions have been significant both in building the field of taxonomy, ecology and historical biogeography of Australian plants, particularly Eucalypts and flora, and in science education at all levels. She is professorial fellow in the School of Botany at the University of Melbourne, where she has previously held a personal chair and was head of the School of Botany at the University of Melbourne from 1992 to 2010. She has been a fellow of the Australian Academy of Science since 2002. The standard author abbreviation Ladiges is used to indicate this person as the author when citing a botanical name.
Professor Jane Elith is an ecologist in the School of Botany at the University of Melbourne. She graduated from the School of Agriculture and Forestry at the University of Melbourne in 1977. She specialises in ecological models that focus on spatial analysis and prediction of the habitat of plant and animal species. Following graduation, she was a research assistant and tutor for three years, and then spent the following 12 years raising her children. She returned to the University of Melbourne in 1992 and later commenced a part-time PhD in the School of Botany. She was awarded her PhD in 2002 on 'Predicting the distribution of plants'. Since then, she has been a research fellow in the School of Botany. She is currently an ARC Future Fellow and sits within the Centre of Excellence for Biosecurity Risk Analysis at the University of Melbourne.
André Desrochers is a Quebec scientist with expertise in ornithology and ecology.
Cornelia Clermont Cameron was an American geologist who researched peat as a soil additive and energy source.
Polytrichum strictum, commonly known as bog haircap moss or strict haircap, is an evergreen and perennial species of moss native to Sphagnum bogs and other moist habitats in temperate climates. It has a circumboreal distribution, and is also found in South America and Antarctica.
Paludiculture is wet agriculture and forestry on peatlands. Paludiculture combines the reduction of greenhouse gas emissions from drained peatlands through rewetting with continued land use and biomass production under wet conditions. “Paludi” comes from the Latin “palus” meaning “swamp, morass” and "paludiculture" as a concept was developed at Greifswald University. Paludiculture is a sustainable alternative to drainage-based agriculture, intended to maintain carbon storage in peatlands. This differentiates paludiculture from agriculture like rice paddies, which involve draining, and therefore degrading wetlands.
Marie-Josée Fortin is an ecologist and Professor in the Department of Ecology and Evolutionary Biology at the University of Toronto. Fortin holds the Tier 1 Canada Research Chair in Spatial Ecology at the University of Toronto. In 2016, she was elected as a Fellow of the Royal Society of Canada.
Beryl B. Simpson is a professor emerita in the Department of Integrative Biology at the University of Texas at Austin. Previously she was an associate curator at the Smithsonian National Museum of Natural History in the Department of Botany. She studies plant systematics and tropical botany, focusing on angiosperms found in the American Southwest, Mexico, and Central and South America. She was awarded the José Cuatrecasas Medal for Excellence in Tropical Botany for her decades of work on the subject.
Dawn R. Bazely is a full professor in biology in the Faculty of Science, and the former Director of the Institute for Research Innovation in Sustainability, at York University in Canada. In 2015 she was awarded the title of University Professor for services to research, teaching, and the institution. Bazely has been a field biologist for forty years and her research specializes in plant-animal interactions in ecology. She has also been recognized for her science communication.
Jill L. Bubier is a professor emerita of environmental science at Mount Holyoke College (MHC). Her research examines how Northern ecosystems respond to climate change.
Dale Hadley Vitt is an American bryologist and peatland ecologist, recognized as a leading expert on peatlands. From 1989 to 1991 he was the president of the American Bryological and Lichenological Society.
Nancy Guttmann Slack was an American plant ecologist, bryologist, and historian of science. She was the president of the American Bryological and Lichenological Society from 2005 to 2007.
Noura Ziadi is a Canadian research scientist with Agriculture and Agri-Food Canada (AAFC), at the Quebec Research and development centre, whose research focuses on soil fertility and plant nutrition. She has developed technologies, methods, and knowledge for better management of mineral fertilizers that increase their efficiency while reducing environmental impact. More specifically, Ziadi developed and validated models to diagnose nitrogen and phosphorus status for different crops, developed new technologies to ensure effective management of industrial wastes and biochar, and developed methods for soil analysis. Ziadi conducts her research on national and international scales in multidisciplinary teams that include government, university, and industry partners. Her research increases agricultural productivity and enhances environmental performance earning her recognition as an influential woman in agriculture.
Beverley Rae Clarkson is a New Zealand botanist, ecologist and wetland researcher and conservationist. She is best known for her research into and her conservation work with New Zealand wetlands. In 2021, the city of Hamilton awarded her the Hamilton-Kirikiroa Medal. In the same year Clarkson was awarded the New Zealand conservation award, the Loder Cup.
Peatland restoration is a term describing measures to restore the original form and function of peatlands, or wet peat-rich areas. This landscape globally occupies 400 million hectares or 3% of land surface on Earth. Historically, peatlands have been drained for several main reasons; peat extraction, creation of agricultural land, and forestry usage. However, this activity has caused degradation affecting this landscape's structure through damage to habitats, hydrology, nutrients cycle, carbon balance and more.
References
- 1 2 3 "Dr. Line Rochefort Winner of the IPS Award of Excellence 2011!". International Peatland Society.
- ↑ "Dr. Line Rochefort". Women in Science. Canadian Science Publishing. Archived from the original on 2015-12-08.
- ↑ Allan, Jessica M.; Guêné-Nanchen, Mélina; Rochefort, Line; Douglas, David J. T.; Axmacher, Jan C. (2023-10-05). "Meta-analysis reveals that enhanced practices accelerate vegetation recovery during peatland restoration". Restoration Ecology. doi:10.1111/rec.14015. ISSN 1061-2971. S2CID 263810772.
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