• Like
Biomes
Upcoming SlideShare
Loading in...5
×

Biomes

  • 109 views
Uploaded on

Geography slides on geoecology for Leaving Cert Geography

Geography slides on geoecology for Leaving Cert Geography

More in: Education
  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Be the first to comment
    Be the first to like this
No Downloads

Views

Total Views
109
On Slideshare
0
From Embeds
0
Number of Embeds
0

Actions

Shares
Downloads
6
Comments
0
Likes
0

Embeds 0

No embeds

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
    No notes for slide

Transcript

  • 1. A Biome is a world region that is characterised by groups of plants and animals adapted to specific conditions of climate, soils and biotic inter-relationships 29/07/2014 1 Geoecology
  • 2. 29/07/2014 2Geoecology Characterised by inter-relationships of: Climate • Soils • Plants • Animals • When answering a question on biomes always include: • Definition • Location • Formation of that biome • Climate (temperature & precipitation) • Soils • Plants • Animals
  • 3. 29/07/2014 3Geoecology
  • 4. 29/07/2014 4Geoecology
  • 5. 29/07/2014 5Geoecology Deciduous ForestTaiga Desert Grassland Tropical Rain Forest Tundra
  • 6. 29/07/2014 6Geoecology Californian •Great Basin •Mohave •Sonoran •Chihuahuan Atacama Namib Sahara Great Australian Desert Turkestan Gobi Kalahari Arabian
  • 7. 29/07/2014 7Geoecology Hadley Cells 1. Equator 0o – LP – Air Rises 2. Convectional Rainfall Moves away from Equator 3. Tropics 30o – HP – Air Sinks 4. Moves towards equator Compressed Warm air holds moisture – DRY 5. Desert - Sahara
  • 8. 29/07/2014 8Geoecology Rain Shadow Effect 1. Coastal Mountains act as barrier to moist air 2. Forced to rise & cool 3. Precipitation on windward side 4. Leeward Air dry 5. Mountains – Sierra Nevada 6. Desert - Mohave
  • 9. 29/07/2014 9Geoecology Cold Ocean Currents 1. Wind that blows over cold currents are cooled 2. Cannot hold moisture so precipitates 3. On reaching hot land – air is warmed – retains moisture 4. Desert – Namib / Atacama
  • 10. 29/07/2014 10Geoecology Algeria Belize - Rainfall
  • 11. 29/07/2014 11Geoecology
  • 12. 29/07/2014 12Geoecology Aridisols Sandy to Coarse textured Deep Soils (Basin) Little organic matter Light Grey Clour Intense Evaporation Alkaline Soil Calcification Salinisation Caliche
  • 13. 29/07/2014 13Geoecology Prickly Pear CactusBarrel Cactus Desert Paintbrush Mesquite
  • 14. 29/07/2014 14Geoecology Black Widow Cactus Wren Lizard Dingo Vulture Chameleon Grasshopper Sand Rat Gecko Camel
  • 15. 29/07/2014 15Geoecology EFFECTS OF HUMAN ACTIVITIES -4 effects to be studied • Early Settlement – Clearing Forests • Felling of Tropical Rain Forests • Intensive Agriculture • Industrial Development DESERTS
  • 16.  European Forests  Irish Forests • Started in Neolithic Age • Mid 1800s almost devoid of forest cover • 1900 only 1% forest cover • 2003 - 9.4% • EU average 31% 29/07/2014 16Geoecology
  • 17. Country Forest Cover (% of land area) 2003 Ireland 9.4 % Netherlands 9.5 % Denmark 12.7 % Belgium 22.4 % Germany 30.2 % France 31.6 % Sweden 73.5 % Finland 75.5 % 29/07/2014 Geoecology 17 Source OECD
  • 18. 29/07/2014 Geoecology 18 Dark Green: > 40 % cover Mid Green: 10 – 40 % cover Light Green: woodland, shrubland bushland
  • 19. 29/07/2014 Geoecology 19 Average Annual % 1990 - 2000
  • 20. 29/07/2014 Geoecology 20 Importance of Tropical Rain Forests • Home to Tribal Cultures that have survived for thousands of years • Home to 50% of plant and animal species • Winter home to birds that breed in temperate climates • Help to reduce Global CO2 levels • Help to maintain global rain and weather patterns • Source of pharmaceutical Drugs
  • 21. 29/07/2014 Geoecology 21 Reasons for Felling • Firewood, charcoal, building materials, furniture • Conversion to pasture for cattle ranching • Mining for gold, bauxite (aluminium) etc. • Cultivation of Cash Crops • Overpopulation - migration
  • 22. 29/07/2014 Geoecology 22 Brazil Source UNEP
  • 23. 29/07/2014 Geoecology 23 Argentina: Source UNEP
  • 24. 29/07/2014 Geoecology 24 Bolivia Source: UNEP
  • 25. 29/07/2014 Geoecology 25 Bolivia Source: UNEP
  • 26. Trends in Atmospheric Concentrations and Anthropogenic Emissions of Carbon Dioxide 29/07/2014 Geoecology 26
  • 27. World Carbon Dioxide Emissions 1999 Metric Tons of Carbon Equivalent per capita 29/07/2014 Geoecology 27
  • 28. 29/07/2014 Geoecology 28Source: angelfire.com
  • 29. Effects of Acid Rain 29/07/2014 Geoecology 29 Source: angelfire.com
  • 30. Pollution of Rivers and Lakes – Faecal Coliforms 29/07/2014 Geoecology 30
  • 31. Pollution of Rivers and Lakes – pH values 29/07/2014 Geoecology 31
  • 32. Pollution of Coasts and Seas 29/07/2014 Geoecology 32
  • 33. Pollution of Coasts and Seas 29/07/2014 Geoecology 33
  • 34. World Ecosystems Undisturbed Partially Disturbed Human Dominated 51.9 % 24.2 % 23.9 % Adjusted for Rock, Ice & Barren Land 27 % 36.7 % 36.3 % 29/07/2014 Geoecology 34 Source Hannah et Al 1994