1 / 27

Biome

Biome. a major regional terrestrial community with its own type of climate, vegetation, and animal life. Ecotone boundary between two biomes . Tropical Rain Forest. Tropical Rain Forest. -found near the equator -temperature varies little from approximately 23°C

zubin
Télécharger la présentation

Biome

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Biome a major regional terrestrial community with its own type of climate, vegetation, and animal life Ecotone boundary between two biomes

  2. Tropical Rain Forest

  3. Tropical Rain Forest -found near the equator -temperature varies little from approximately 23°C -the length of daylight varies from 12 hours by less than one hour -rainforest>2000mm

  4. Tropical Rain Forest -canopy trees up to 55 m tall -largest biome, on an area basis -soils are generally unfertile -nutrients and carbon stored in plant biomass, not soils

  5. Tropical Savanna/Seasonal Forest

  6. Tropical Savanna/Seasonal Forest -found in the tropics (but > 10° latitude) -pronounced dry season with <5 cm rainfall in some months

  7. Tropical Savanna/Seasonal Forest -fire & grazing by animals also contribute to predominance of grasses -scattered trees and grass

  8. Temperate Forest

  9. Temperate Forest -distinct winter season, frost a defining feature -summer season usually moist with ppt > evapotranspiration

  10. Temperate Forest -relatively large tree biomass -also called the deciduous forest, but contains evergreen needle trees as well

  11. Temperate Grassland/Shrubland

  12. Temperate Grassland/Shrubland -similar to tropical savanna, but with cold winter -relatively hot summer -potential evapotranspiration > ppt

  13. Temperate Grassland/Shrubland -scattered trees and shrubs -trees are short statured -fire & grazing by animals also contribute to predominance of grasses, but that depends on climate

  14. Desert

  15. Desert -hot or cold deserts exist -low precipitation <25cm, sporadic -potential evapotranspiration > ppt

  16. Desert -thorny plants -other adaptations to conserve water

  17. Chapparal

  18. Chapparal -mild winters -seasonal rainfall winter rain, summer drought -maritime influence cold ocean currents continental winds

  19. Chapparal -sclerophyllous plants -adaptations to fire

  20. Boreal Forest

  21. Boreal Forest -severe winters, MAT can be < 0 deg C -ppt is low, but evapo- transpiration low -short growing season

  22. Boreal Forest -10-20 m trees evergreen needle and deciduous -second largest biome, on an area basis -fire dominated, but on longer timescale than grassland -more nutrients and carbon stored in soils than plants

  23. Tundra

  24. Tundra -severe winters -short growing season, cool summer -arctic or alpine

  25. Tundra -no trees sedges,low shrubs mosses -permafrost

More Related