forest-tundra zone

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• Tundra — In physical geography, tundra is an area where the tree growth is hindered by low temperatures and short growing seasons. The term tundra comes from Kildin Sami tūndâr uplands, tundra, treeless mountain tract . There are two types of tundra:… …   Wikipedia

• Forest — This article is about a community of trees. For other uses, see Forest (disambiguation). A conifer forest in the Swiss Alps (National Park) …   Wikipedia

• boreal forest — ▪ northern forest Introduction also called  taiga        vegetation composed primarily of cone bearing, needle leaved, or scale leaved evergreen trees, found in regions that have long winters and moderate to high annual precipitation.       The… …   Universalium

• Boreal forest of Canada — Canada s boreal forest comprises about 25% of the circumpolar boreal forest that rings the northern hemisphere, mostly north of the 50th parallel. [State of Canada’s Forests: 2004 2005, The Boreal Forest, Canadian Forest Service, ISBN 0 662 40014 …   Wikipedia

• Alpine tundra — Hikers traversing the Franconia Ridge in the White Mountains, much of which is in the alpine zone. Alpine tundra is a natural region that does not contain trees because it is at high altitude. Alpine tundra is distinguished from arctic tundra,… …   Wikipedia

• Pollen zone — Pollen zones are a system of subdividing late Pleistocene and early Holocene paleoclimate using the data from pollen cores. The sequence provides a global chronological structure to a wide variety of scientists, such as geologists,… …   Wikipedia

• Boreale Zone — Die Verbreitung der borealen Nadelwälder Die boreale Zone ist eine Ökozone, die nur auf der nördlichen Erdhalbkugel zwischen ungefähr dem 50. und dem 70. Breitengrad vorkommt. Sie ist gekennze …   Deutsch Wikipedia

• Temperate broadleaf and mixed forest — Temperate mixed forest in Yunnan, southwest China. Mixed forests are a temperate and humid biome. The typical structure of these forests includes four layers. The uppermost layer is the canopy composed of tall mature trees ranging from 33 to… …   Wikipedia

• Temperate coniferous forest — A temperate coniferous forest ecosystem in Petroglyphs Provincial Park, Ontario Temperate coniferous forest is a terrestrial biome found in temperate regions of the world with warm summers and cool winters and adequate rainfall to sustain a… …   Wikipedia

• Scandinavian Montane Birch forest and grasslands — The Scandinavian Montane Birch forests and grasslands PA 1110 is one of the terrestrial ecoregions as defined by the World Wildlife Fund. Geography The ecoregion follows the Scandinavian Mountains, and is mainly located within the borders of… …   Wikipedia

• Tongass National Forest — IUCN Category VI (Managed Resource Protected Area) …   Wikipedia