Temperate broadleaf and mixed forest
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 66 m (100 to 200 feet) high. Below the canopy is the three-layered, shade-tolerant understory that is roughly 9 to 15 m (30 to 50 feet) shorter than the canopy. The top layer of the understory is the sub-canopy which is composed of smaller mature trees, saplings, and suppressed juvenile canopy layer trees awaiting an opening in the canopy. Below the sub-canopy is the shrub layer, composed of low growing woody plants. Typically the lowest growing (and most diverse) layer is the ground cover or herbaceous layer.
Characteristic dominant broadleaf trees in this biome include oaks (Quercus spp.), beeches (Fagus spp.), maples (Acer sap.), and birches (Betula spp.). The term "mixed forest" comes from the inclusion of coniferous trees as a canopy component of these forests. Typical coniferous trees include: Pines (Pinus spp.), firs (Abies spp.), and spruces (Picea spp.). In some areas of this biome the conifers may be a more important canopy species than the broadleaf species.
Temperate broadleaf and mixed forests occur in areas with distinct warm and cool season, which give it a moderate annual average temperature (3 to 15.6 °C). These forests occur in relatively warm and rainy climates, sometimes also with a distinct dry season. A dry season occurs in the winter in East Asia and in summer on the wet fringe of the Mediterranean climate zones. Other areas have a fairly even distribution of rainfall; annual rainfall is typically over 600 millimetres (24 inches) and often over 1500 millimetres (60 inches). Temperatures are typically moderate except in parts of Asia such as Ussuriland where temperate forests can occur despite very harsh conditions with very cold winters.
Temperate broadleaf and mixed forest ecoregions
Chatham Islands temperate forests New Zealand Eastern Australian temperate forests Australia Fiordland temperate forests New Zealand Nelson Coast temperate forests New Zealand Northland temperate forests New Zealand Northland temperate kauri forests New Zealand Stewart Island/Rakiura temperate forests New Zealand Richmond temperate forests New Zealand Southeast Australia temperate forests Australia Southland temperate forests New Zealand Tasmanian Central Highland forests Australia Tasmanian temperate forests Australia Tasmanian temperate rain forests Australia Westland temperate forests New Zealand
Northern Triangle temperate forests Burma Western Himalayan broadleaf forests India, Nepal, Pakistan Atlantic mixed forests Belgium, Denmark, France, Germany. Netherlands Azores temperate mixed forests Portugal Balkan mixed forests Bulgaria, Greece, Macedonia, Romania, Serbia (Kosovo), Turkey Baltic mixed forests Denmark, Germany, Poland, Sweden Cantabrian mixed forests Portugal, Spain Caspian Hyrcanian mixed forests Azerbaijan, Iran Caucasus mixed forests Armenia, Azerbaijan, Georgia, Russia, Turkey Celtic broadleaf forests Ireland, United Kingdom Central Anatolian deciduous forests Turkey Central China loess plateau mixed forests China Central European mixed forests Austria, Belarus, Czech Republic, Germany, Lithuania, Moldova, Poland Central Korean deciduous forests North Korea, South Korea Changbai Mountains mixed forests China, North Korea Changjiang Plain evergreen forests China Crimean Submediterranean forest complex Russia, Ukraine Daba Mountains evergreen forests China Dinaric Mountains mixed forests Albania, Bosnia and Herzegovina, Croatia, Italy, Montenegro, Serbia, Slovenia East European forest steppe Bulgaria, Moldova, Romania, Russia, Ukraine Eastern Anatolian deciduous forests Turkey English Lowlands beech forests United Kingdom Euxine-Colchic deciduous forests Georgia, Turkey Hokkaido deciduous forests Japan Huang He Plain mixed forests China Madeira evergreen forests Portugal Manchurian mixed forests China, North Korea, Russia, South Korea Nihonkai evergreen forests Japan Nihonkai montane deciduous forests Japan North Atlantic moist mixed forests Ireland, United Kingdom Northeast China Plain deciduous forests China Pannonian mixed forests Austria, Bosnia and Herzegovina, Croatia, Czech Republic, Hungary, Romania, Serbia, Slovakia, Slovenia, Ukraine Po Basin mixed forests Italy Pyrenees conifer and mixed forests Andorra, France, Spain Qin Ling Mountains deciduous forests China Rodope montane mixed forests Bulgaria, Greece, Macedonia, Serbia Sarmatic mixed forests Belarus, Estonia, Finland, Latvia, Lithuania, Norway, Russia, Sweden Sichuan Basin evergreen broadleaf forests China South Sakhalin-Kurile mixed forests Russia Southern Korea evergreen forests South Korea Taiheiyo evergreen forests Japan Taiheiyo montane deciduous forests Japan Tarim Basin deciduous forests and steppe China Ussuri broadleaf and mixed forests Russia West Siberian broadleaf and mixed forests Russia Western European broadleaf forests Austria, Czech Republic, France, Germany, Switzerland Zagros Mountains forest steppe Iran
AmericasNearctic Temperate broadleaf and mixed forests
United States Appalachian mixed mesophytic forests United States Appalachian-Blue Ridge forests United States California mixed evergreen forest United States Central U.S. hardwood forests United States East Central Texas forests United States Eastern forest-boreal transition Canada, United States Eastern Great Lakes lowland forests Canada, United States Gulf of St. Lawrence lowland forests Canada Lac Saint-Jean and Saguenay valley forests Canada Mississippi lowland forests United States New England-Acadian forests Canada, United States Northeastern coastal forests United States Ozark Mountain forests United States Southeastern mixed forests United States Southern Great Lakes forests United States Upper Midwest forest-savanna transition United States Western Great Lakes forests Canada, United States Willamette Valley forests United States Magellanic subpolar forests Argentina, Chile Polylepis forests Bolivia, Peru San Felix-San Ambrosio Islands temperate forests (Desventuradas Islands) Chile Valdivian temperate rain forests Argentina, Chile
Biomes and Ecozones Terrestrial
Other biomes Ecozones
- Temperate forest
- Index of North American Temperate Broadleaf & Mixed Forests ecoregions at bioimages.vanderbilt.edu
- Terraformers Canadian Forest Conservation Foundation
Wikimedia Foundation. 2010.
Look at other dictionaries:
Temperate broadleaf and mixed forests — are a temperate and humid biome. The typical structure of these forests include four layers. The upper most layer is the canopy which is composed of tall mature trees. Below the canopy is the three layered, shade tolerant understory. The top… … Wikipedia
Laurentian Mixed Forest Province — Sunset on a northern Minnesota lake. The Laurentian Mixed Forest Province, also known as the North Woods, is a forested ecoregion in Canada and the United States. In Canada it is found in Ontario around the Great Lakes and the Saint Lawrence… … Wikipedia
Temperate rainforest — Temperate rainforests are coniferous or broadleaf forests that occur in the temperate zone and receive high rainfall. Most of these occur in Oceanic Moist Climates in Western North America (Southeastern Alaska to Central California), Western… … Wikipedia
Temperate forest — Temperate forests are forests in the temperate climate zones. They include: * Temperate deciduous forest * Temperate broadleaf and mixed forests * Temperate coniferous forests * Temperate rain forests … Wikipedia
Mixed — is the past tense of mix. It may also refer to: Mixed breed, an animal whose parents are from different breeds or species Mixed anomaly, in theoretical physics, an example of an anomaly Mixed data sampling, an econometric model developed by… … 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
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
Forest steppe — A forest steppe is a temperate climate habitat type composed of grassland interspersed with areas of woodland or forest.The physiographic macroregion in which it primarily occurs is a belt of forest steppes cross Eurasia from eastern Europe to… … Wikipedia
Temperate deciduous forest — The Temperate deciduous forest is a biome found in the eastern United States, Canada, central Mexico, southern South America, Europe, China, Japan, North Korea and parts of Russia. A temperate deciduous forest consists of trees that lose their… … Wikipedia
temperate forest — ▪ ecology Introduction vegetation type with a more or less continuous canopy of broad leaved trees. Such forests occur between approximately 25° and 50° latitude in both hemispheres (seeFigure 1 >). Toward the polar regions they grade into… … Universalium