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GEOG 1220 (115)
Lecture

Forestry Resources

4 Pages
95 Views

Department
Geography
Course Code
GEOG 1220
Professor
Richard Kuhn

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Geography part II: Professor Kuhn
3. Forestry Resources
A) Natural Distribution
- Major part of our environmental imagination
- A flow resource, thus potentially sustainable
- 4 billion hectares (30% of land surfaces)
- Spread out differently by region
Biomes: A large, biogeographically unit of land characterized by a particular
combination of animals, vegetation, and climate; for example, grassland or tundra.
Boreal Forest : Cold environments: sub-artic; confers, supplies lumber and pulpwood
Temperate forests : cold environments; mid latitudes; deciduous, original forest lost
to agriculture and settlement.
Tropical forests: warm environments; low latitudes; evergreen broadleaf trees; rich
biodiversity
B) Change in Forest Cover
- Loss of forests (landscapes (occurred in the last 50 years)
- now 30% cover
- cleaved, fragmented or degraded
- spread of agriculture
- animal husbandry
- expansion of settlements
- deforestation: changing the land use of forests to something else
- Haiti: disintegrated economical due to deforestation
Forest area includes primary forests, modified natural forests, semi-natural forests,
productive forest plantations and protective forest plantations. Net change in forest area
takes into account afforestation.
Primary and secondary forests:
- Primary forests: Uncut, ‘old growth’, frontier, ecologically intact forests (0% of
temperate; 60% of tropical)
- Secondary forests:
• Ecological succession after cutting

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Description
Geography part II Professor Kuhn3 Forestry ResourcesA Natural Distribution Major part of our environmental imagination A flow resource thus potentially sustainable 4 billion hectares 30 of land surfaces Spread out differently by regionBiomes A large biogeographically unit of land characterized by a particular combination of animals vegetation and climate for example grassland or tundraBoreal Forest Cold environments subartic confers supplies lumber and pulpwoodTemperate forests cold environments mid latitudes deciduous original forest lost to agriculture and settlement Tropical forests warm environments low latitudes evergreen broadleaf trees rich biodiversity B Change in Forest Cover Loss of forests landscapes occurred in the last 50 yearsnow 30 covercleaved fragmented or degradedspread of agricultureanimal husbandryexpansion of settlementsdeforestation changing the land use of forests to something elseHaiti disintegrated economical due to deforestation Forest area includes primary forests modified natural forests seminatural forests productive forest plantations and protective forest plantations Net change in forest area takes into account afforestationPrimary and secondary forests Primary forests Uncut old growth frontier ecologically intact forests 0 of temperate 60 of tropical Secondary forests Ecological succession after cutting
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