Boreal Peatland Ecosystems (Ecological Studies) by R.K. Wieder, D.H. Vitt

By R.K. Wieder, D.H. Vitt

This can be the 1st really ecosystem-oriented ebook on peatlands. It adopts an ecosystems method of realizing the world's boreal peatlands. the point of interest is on biogeochemical styles and tactics, creation, decomposition, and peat accumulation, and it presents more information on animal and fungal variety. A habitual subject matter is the legacy of boreal peatlands as amazing accumulators of carbon as peat over millennia.

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Additional info for Boreal Peatland Ecosystems (Ecological Studies)

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The vegetation now depends (almost) entirely on precipitation for water and nutrient supply, and ombrotrophic conditions develop. An example of hydroseral succession in a boreal peatland of west-central Canada is given in Fig. 3. A pond surrounded by a marsh is replaced by a rich fen community, followed by a poor fen community and, finally, a bog community. While hydroseral succession is a very widespread and common phenomenon in peatland development, the rate of change varies greatly from place to place depending on climatic, edaphic, and other factors.

Vitt peatland complexes in the boreal zone. Detailed reviews of these regional peatland complexes are in Gore (1983) and Keddy and Fraser (2005). 27 × 106 ha (Inisheva and Golovatskaya 2002) and is the largest continuous peatland system in the world (Botch and Masing 1983). In Canada, two large areas of peatlands are present: the Hudson Bay Lowlands, with extensively paludified fens, and the MacKenzie River Basin peatland complex in northwestern Canada, with permafrost bogs to the north and fen complexes to the south.

4. 2 Permafrost Dynamics Typical landforms for permafrost peatlands in boreal and subarctic regions are palsas and peat plateaus (Sonesson 1968; National Wetlands Working Group 1988; Seppälä 1988; Botch et al. 1995). Permafrost expands southwards to the middle boreal (taiga) forest regions in peatlands of west-central Canada and western Siberia, owing to the cold and relatively dry (thin snow cover) winters. In northern Fennoscandia and Quebec, permafrost landforms appear in the northern taiga and only become more abundant in the forest-tundra ecotone and the tundra region.

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