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Forestry and Rangelands. Hunter Kilborn and Bhakta. Ecological Services. Provide habitats Carbon Sinks Affect local climate Purify air and water Reduce soil erosion Provide energy and nutrient cycle. Old-Growth Forests. Old to Middle-aged trees Minimal human activity Multi-layer canopy

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forestry and rangelands

Forestry and Rangelands

Hunter Kilborn and Bhakta

ecological services
Ecological Services
  • Provide habitats
  • Carbon Sinks
  • Affect local climate
  • Purify air and water
  • Reduce soil erosion
  • Provide energy and nutrient cycle
old growth forests
Old-Growth Forests
  • Old to Middle-aged trees
  • Minimal human activity
  • Multi-layer canopy
  • Fungal ecosystem
  • Indicator species
  • Healthy soil
fires
Fires
  • Help clean the forest of leaf litter
  • Improve soil health
  • Surface Fires clear leaf litter, kill seedlings, and undergrowth.
  • Ground fires are hard to detect.
  • Crown Fires happen when there hasn’t been fires in a long time. Super hot and destroy the forest.
deforestation
Deforestation
  • Selective-cutting- Cutting certain trees in an area.
  • Strip-cutting- cutting a strip of trees out of a forest.
  • Clear-cutting- Clearing the forest or a large area of the forest.
rangelands
Rangelands
  • Problems: Overgrazing, desertification.
  • Overgrazing- the over use of rangelands as a source of food for steer and cattle.
  • Desertification- result of abuse of the land from multiple causes. Results in increased soil erosion and decreased fertility.
fun facts
Fun Facts
  • Rangelands are 40% of the United States landmass.
  • 80% of the western US are rangelands.
  • Mostly arid to semi-arid climates.
  • Only 7% of the east coast are rangelands.
  • Regulated and controlled by the Bureau of Land Management (BLM), and the Forest Service.
video clip
Video Clip
  • http://www.youtube.com/watch?v=Kaeyr5-O2eU
external links
External Links
  • American Forests | American Forests
  • Society for Range Management