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15 Cards in this Set
- Front
- Back
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List the ways fire plays a role in ecosystem management (3) |
- used to control insect and wildlife populations - used to promote certain plant species - used to keep forests open and fruitful |
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How does fire effect soils? |
alters physical, biological, and chemical properties of soil |
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List the physical/mineralogical properties of soil, that are altered by fire (7) |
- water repellance - structure stability - bulk density - pH - particle size distribution - mineralogical assemblage - colour |
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List the chemical properties of soil, that are altered by fire (2) |
- quantity and quality of organic matter
- availability of nutrients |
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List the biological properties of soil, that are altered by fire (3) |
- composition of microbial community - soil dwelling invertebrates biomass - composition of soil dwelling invertebrates community (i.e. kills living things in soil?) |
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How does fire effect water?
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causes changes in stream ecology |
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List some points of how fire effects water |
- fire affects the hydrological cycle (i.e. interception, infiltration, evapotranspiration, soil moisture storage, and overland flow)
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How does fire effect air?
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causes smoke production which in turn causes nutrient volatization |
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What is nutrient volatization?
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volatization is the loss of gaseous ammonia to the atmosphere (so loss of nutrients in the air?) |
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How does fire effect vegetation?
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- promotes native fire-adapted plants - alters forest stand composition, structure and density |
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How does fire effect wildlife?
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alters population dynamics (direct and indirect effects)
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Define dendrochronology |
the scientific method of dating tree rings to the exact year they were formed in order to analyze atmospheric conditions during different periods in history |
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What are the 5 Natural Disturbance Types (NDT)? |
Ecosystems with: - 1: rare stand initiating events - 2: infrequent stand initiating events - 3: frequent stand initiating events - 4: frequent stand maintaining fires - 5: alpine tundra and subalpine parkland |
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What NDT is the Lower Mainland?
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NDT2: infrequent stand-initiating events |
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What BEC zones fall under each of the 5 NDT's? |
1. CWH, ICH, ESSF, MH 2. CWH, CDHF, ICH, SBS, ESSF, SWB 3. SWBS, SBPS, BWBS, SBS, MS, ESSF, ICH, CWH 4. IDF, BG, PP 5. ESSF, MH, AT |
