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Forestry Final
| Question | Answer |
|---|---|
| Windland-Urban Interface | Areas where homes are built among forested land. Makes fire harder to predict/control |
| Prescribed Fire | Purposeful use of fire to achieve specific objectives |
| Broadcast Burning | Burning over a large, designated area |
| Drip Torch | Torch filled with fuel and drips the fuel onto the ground as its ignited |
| Ignition Sphere | Eggs placed in a dispenser that are dropped from a helicopter |
| Duff Raking | Raking up leaf litter from the bottom of protected trees to prevent burning |
| Jackpot Burning | Concentrating fuels in piles that need to be burned away |
| Fuel Chipping | Mechanical treatment that reduces the risk of fire ignition and spread. Expensive but very effective |
| 1. Fuel Chipping 2. Density Reduction 3. Ladder Fuel Reduction | Types of Mechanical Treatments (3) |
| 1. Weather Constraints 2. Unintentionally kill living trees 3. Develop into uncontrolled wildfire | Rx Burns Concerns (3) |
| 1. Restoring Fire-dependent communities 2. Removing exotics 3. Sanitation 4. Site preperation | Rx Objectives (4) |
| 'Kelo' Trees | Snags that are slow to decompose and remain standing for hundreds of years (support rare lichens) |
| Cohort | A group of trees similar in age, often having become recruited after a single disturbance |
| Reverse-J Diameter Distribution | Old growth stands are usually composed of pockets of same-aged trees that fill in the gaps caused by disturbance |
| Ecological Forestry | A silvicultural approach intended to maintain biodiversity and other ecosystem services while sustainably providing products and services |
| Legacy Retention | Large healthy trees, snags, CWD |
| Retention Forestry | A portion of the original stand is left unlogged to maintain the continuity of structural and compositional diversity |
| Variable Density Thinning | Thinning designed to accelerate stand development |
| 1. Legacy Retention 2. Intermediate treatments 3. Recovery Periods | 3 Major Principles of Ecological Forestry |
| Recovery Periods | the length of time it takes for a species to improvie |
| 1. Disturbances happen anyway 2. Climate change could make historical references obsolete 3. Not economically viabe large-scale 4. If you build it they will come approach | Criticisms of Ecological Forestry (4) |
| Triad Concept | Method of allocating activities to different portions of the landscape |
| 1. Plantation Production 2. Reserves 3. Multiple Use | Triad Concept (3) |
| Biomasss | Dry mass of all organisms on a unit of land at any point in time |
| Ecosystem Ecology | How a whole ecosystem interacts with its surroundings |
| Pool | components of an ecosystem in which materials are stored |
| Fluxes | The net movement of material among pools |
| 1. Living/dead trees 2. Deadwood 3. Understory 4. Litter 5. Soil | 5 Major Carbon Pools |
| Allometric | quantitative relationship between easy and hard to measure dimensions |
| 1. Photosynthesis 2. Respiration 3. Heterotrophic Respiration 4. Litterfall 5. Root mortality | 5 Carbon Fluxes |
| GPP | total mass of carbon transformed from atmospheric CO2 to organic carbon |
| NPP | mass of carbon transformed into CO2 mins autotrophic respiration |
| Maintenance Respiration | energy used to sustain function of plant tissue |
| 1. Temp and ppt 2. Length of growing season 3. Soil properties | 3 Factors that influence NPP |
| NEP | Net accumulation of carbon per year |
| Sink | system in which sequestration exceeds emissions |
| Source | system in which emissions exceed sequestration, leading to a decrease in storage |
| Sequestration | the rate at which carbon mass accumulates (mg/ha/year) |
| Storage | the mass of carbon present on a site mg/ha |
Created by:
SkylerG