Foresty Flashcards
(12 cards)
What are ecosystem services
- Regulating climate
- Control water runoff
- Food and shelter for wildlife
- Purifying air and water
- Carbon storage
- Soil conservation
Intrinsic values of forestry
- Scientific
- Cultural/ spiritual
- Historical value
Foret biomes
- Boreal forest
- Temperate forest
- Tropical forest
Economic impacts of forestry
- 1.2% of GDP in Canada
- 46,000 jobs in 2022
Stages of forest succession
- Pioneer plants (annual)
- Perennial plants
- Shrubs
- Young forest
- Mature forest (when forestry happens)
What is silviculture
Development and care of forests for a variety of reasons (wildlife habitat, water, timber restoration)
Softwood and hardwood
- Softwood grows faster and is easily manipulated compared to hardwood (more expensive)
Types of forestry
Clear cut: stems left
- mining, building houses
- Cost efficient
- quick
- mimic fires in fire dependent forests
- Habitat loss
- Erosion, mud slides, flooding
- biodiversity loss
Strip cut: clear cutting in rows
Whole tree: taking specific types of trees
Selective harvesting: specific types (big ones), more expensive, more labour.
Shelterwood system: cut specific trees, plant trees, manage it overtime.
Benefits of replanting
- could stimulate 1st generation forest (natural forests
- could be harvested for pulp and paper for money
- planted forests are 7% of forests globally
What is reforestation vs Afforestation
- Replanting of trees after logging
- the planting of trees where forested cover has not existed for sometime.
Maximum sustainable yield
most we can take so that it stays renewable (Ex. forestry, fishing)
How is hydrology impacted by forestry?
- Transpiration by trees is responsible for much of a watersheds evaporation
- Mature forests root system moderates peak flows of stream water during spring melt.
1 + 2 = forestry usually means more runoff.
