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Green infrastructure
| Question | Answer |
|---|---|
| What are three types of green water management | Rain gardens Bioswales Dry sumps |
| What are 13 examples of green infrastructure | Green walls Green roofs Green water management Hedgerows Urban wild areas Beehives Fish ladders Wildlife overpass bridges Urban forest Suburban forest Parks, golf courses Urban agriculture Community gardens |
| What are four types of green infastructure | Urban environments Natural wild areas Designated green spaces Private and public spaces |
| What are the three types of green wall systems | Extensive Semi intensive Intensive |
| What is the minimum and maximum slope of a lawn | 1-5 percent |
| What is the minimum and maximum slope of a patio | 0.5 - 3 percent |
| What is the minimum and maximum slope of a pathway | 0.5 - 8 percent |
| What is the minimum and maximum slope of accessibility pathways | 0.5 - 5 percent |
| What is the minimum and maximum slope of a driveway | 0.5 -11 percent |
| Which plant is best suited for dry soil in full sun? Brunnera macrophylla Cerastium tomentosum Iris sibiruca Vinca minor | Cerastium tomentosum |
| Which plant family is the genus dianthus in? Ranunculaceae Asteraceae Verbenceae Caryophyllaceae | Caryophyllaceae |
| What are these three underground utility colour codes stand for Red Orange Yellow | Electrical power lines Telecommunication alarms or signal lines Gas oil steam petroleum or other flammable material |
| What are these three underground utility colour codes Green Blue Purple | Sewage and drain lines Potable water Reclaimed water irrigation and slurry |
| What are these two underground utility lines mean Pink White | Temporary survey lines Proposed excavation |
| In irrigation what is the velocity not to exceed | 5 fps |
| What does feet of head equal in psi | .433 psi = 1 foot |
| What does 2.31 feet equal in psi? | 1 psi |
| How is dynamic pressure calculated | Static pressure-friction loss +pressure loss/gain due to elevation |
| How do you calculate area? | Length times width |
| How do you calculate area of a circle | Pie r squared |
| How do you calculate the volume of a cylinder | Pie r squared times height |
| How do you calculate the circumference of a circle | Pie times diameter |
| How do you calculate the area of a triangle | Base times height divided by 2 |
| How do you calculate volume | Length times width times height |
| What is the formula for calculating grade percentage | Rise divided into run times 100 |
| What is the definition of a hypotenuse | It is the long leg of a right angle triangle Opposite of the 90 degree corner |
| What is the formula for Pythagorean theorem | A squared plus b squared equals c squared |
| How to lay out a square corner There are three steps | Drive a stake into the ground where you want your corner to be Use two tape measures from the staked corner pull one tape out to three units the other to four line these up to 90 degrees Third tape measure measure 5 units |
| What is am example of a extensive green wall system | Vine climbing directly on a structure |
| What is an example of a semi intensive green wall system | A support system installed for climbing vines such as cables trellis mesh |
| What is an example of an intensive green wall system | Large sheets of polymide felt With drip emitters for each cell |
| What is another type of intensive green wall that isn’t capillary is | Modular which involves plastic cells or grids and units independent of each other that are easy to install |
| Which of the extensive green wall systems is used where there is facades that can be easily damaged | Semi intensive |
| Which green wall system has high maintenance and high cost | Intensive |
| Which green wall system has high water use | Intensive |
| What size does the irrigation supply above section of planting cells need to be | 1/2 to 3/4 polyethylene tubing |
| What are eight benefits of green walls | Capturing rain Slowing water to storm water drainage systems Filtering airborne pollutants Noise dampening Cooling buildings in summer Environmental cooling Improved environmental psychology Providing habitat shelter for birds and insects |
| What are three limitations of green walls | Poor plant choices can damage property Irrigation considerations High Maintenance |
| What are the 7 layers ordered from the top down for a green roof? | Vegetation Growing media substrate Filter layer Water retention layer Drainage layer Insulation layer Waterproof membrane |
| What are three types of green roof systems | Extensive Semi intensive Intensive systems |
| What are some characteristics of an extensive green roof system Depth Max weight Plants Irrigation Maintenance Use Costs | Depth 3 to 5 inches Max weight 15-25 pounds Plants succulents sedums herbs some grassed moss No irrigation Low maintenance Use green cover Cost low |
| What are some characteristics of a semi intensive green roof Depth Max weight Plants Irrigation Maintenance use costs | Depth 5-7 inches Max weight 25-40 pounds Plants sedums grasses herbaceous perennials herbs sub shrubs Minimal irrigation Medium maintenance requirements Use biodiversity habitat Costs medium |
| What are some characteristics of an intensive green roof Depth max weight plants irrigation maintenance use cost | Depth 7-24 inches Max weight 35-80 pounds Plants herbaceous perennials turf woody perennials agricultural food crops Irrigation automated systems Maintenance high Use recreational park garden urban agriculture Cost high |
| What is an excellent trait for plants on green roofs | The ability to sprout from rhizomes |
| What two properties must growing media substrates the underneieth layer must have What are five examples | Lightweight 75-85 percent mineral based Decomposition is a big factor Recycled brick concrete volcanic rock expanded slate crushed clay |
| For growing media substrates what is the ideal depth for extensive systems | 3-5 inches |
| What are four benefits of having a green roof? | Reduced storm water runoff’s Filtering storm water Building insulation Habitat and shelter for birds insects and other wildlife |
| What regulations govern rain garden design | Watershed or local government requirements for storm water source control |
| For site analysis for a rain garden what data needs to be gathered? | Rainfall patterns Existing vegetative cover Infiltration constraints Soil mapping and infiltration tests |
| Rain gardens must be at least Blank away from buildings | 10 feet |
| Rain gardens must be at least Blank away from a septic drain field or well head | 25 feet |
| Only build a rain garden when the water table is more than blank down | 2 feet |
| Rain gardens must be located in Blank to blank sun | Full to partial |
| What is a bioswale | It is designed to move the water away and towards the drain at a slow shallow pace they can incorporate plants especially native ones They have shallow passage ways They filter water before it enters storm drain They help filter metals out of streams |
| What is a dry sump | It is another filtering drain to get rid of standing water often consisting of sand |
| What is a hedgerow | It is a row of bushes, trees or plants usually growing along a bank bordering a country lane or between fields |
| What are some purposes of hedgerows | They mark the boundary of a property They create a boundary for the movement of livestock |
| What sort of soil is required for Green walls Green roofs | Soil less media peat coir based 75 to 85 percent recycled brick concrete volcanic rock expanded slate crushed clay |
Created by:
Rayofsun