Climate Flashcards
What are the two ways vegetation intercepts solar radiation?
Direct and reflected
What kind of plant is best for filtering the sun?
Leafy deciduous
What kind of plant is the best for reflectivity?
Conifers and fine textured plants
What kind of plants protect structure walls the best?
Vines
What is evapotranspiration?
Process that water is transferred from land to the atmosphere
T or F: evapotranspiration can be more cooling than shading
True
What are the benefits of vegetation?
Cheap, aesthetic, noice canceling, soil stabilization, and increased property value
What are the 4 effectiveness factors to consider for vegetation?
- Density
- Shade
- Dimensions
- Placement
What are 2 direct effects of vegetation?
- Shade
- Wind blocking
What is an indirect effect of vegetation?
Evapotranspiration
T of F: leafless trees still intercept up to 50% of the sun’s rays
True
T or F: vegetation shading does not outperform mechanical shading
False- it does!
T or F: the benefit of summer shade outweighs winter interception
True
What are the different average annual min temperatures per zones?
6b, 7a, 7b, 8a, & 8b
6b: -5 - 0 deg. F
7a: 0 - 5 deg. F
7b: 5 - 10 deg. F
8a: 10 - 15 deg. F
8b: 15 - 20 deg. F
When is a good time to plant for better establishment?
Fall
What are the 6 steps to plant for better establishment?
- Remove existing plant (tops/ roots/ all)
- Deep till (8”-10” min)
- Amend soil (organic compost)
- Plant new shrubs/ trees
- Mulch
- Water
What are the 4 wind controlling devices?
- Obstruction
- Guidance
- Deflection
- Filtration
How do you determine the effectiveness of wind breaks (5)? What type of plant is generally the most effective?
- Density, placement, height, width, & permeability
- Evergreen
What is the best direction to plant against winds?
Perpendicular to prevailing winds
Wind velocity maybe reduced by ___% for a distance of 10-20 times the plant height downwind of a wind barrier.
50%
Wind is obstructed and/or deflected for a distance of ____ to ____ times the height of the plant from the front of the barrier & ___ to ___ times the height in the leeward side of a barrier.
- 2 to 5
- 10 to 15
How much rainfall does the central + southern region of Georgia receive per year?
Approx. 50”/ year
How much rainfall does the northern part of GA receive per year?
Approx. 60”- 80”/ year
