19 Cards in this Set
| Front | Back |
|---|---|
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GPP
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Gross primary Production it is photosynthesis of the entire ecosystem
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R
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Metabolic costs for growth and metabolism
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NPP
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Net Primary Production (GPP-R)
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NEP
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Net Ecosystem Production (NPP - What dies and decomposes)
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What are the Driving variable for soil
|
Climate
Parent Material
Topography
Land Use
VAM SCF
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Production Ecology Equation
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Amount of resource X amount of resource captured X efficiency in using the resource
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Wood production
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PEE-R
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Volume Growth occurs in ---- dimensions and diameter growth occurs in ---- dimensions
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3 and 1
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What are the top three reasons why foresters should study soils?
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- >95% of the biotic diversity of a forest is found in the soil
- Soils are alive
-Forest ecosystems can be sustained only if the forest is sustained
|
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What was the Scandanavian study
|
- Looking at C in tropical soils
- Found the in warmer soils there is more decomoposition so more C
- In the tropics the decomposition can't keep up with plants causing people to believe the soil is poor
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Hawii Case study
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Looking at different effecting compounds N and P in trees
Nitrogen is brough in by rain and N fixing plants and C is released by plants
- Eventually showing that large trees used recources more efficiently than small trees and the woody respiration declined showing that this process c…
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Reification
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Giving a name to an idea and risking that believing the idea is true
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Do resources for growth change over time?
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They are sustained this is why some trees die and some trees continue to live
|
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what is key about burning charcoal
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It burns at a much higher temperature than wood
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Clemets definition of succession
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Beleives ecosystems are an organisms that goest through life only on direction/outcome and prepares soil for the next species
Related to relay floreistics
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what are some arguements against succession
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- Succession is not a process
- Ecosystems are ever changing
- There is little supporting evidence for succession
|
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What are the differences between disturbance and stress?
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Disturbance is less predictable and happens rapidly
Stress is more predictable and rather a sequence over time
|
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What effects a disturbance
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- Risk
- Hazards
- Exposure
|
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When beetles kill a tree what actually kills the tree
|
Blue stain fungus
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F 311: EXAM 1