Chapter 3 Assesing and quantifying the urban forest Flashcards
distinguish between a tree inventory and a natural resource inventory.
in a tree inventory, the date is only collected about individual trees within a population. The data collected usually includes species, size, health, structural condition, and location, to name a few characteristics. in a natural resource inventory, the assessment is done on a group level rather than just one individual tree. information about the stand, density, age distribution, and species composition, as well as associated vegetation, fauna, and ecological and geological features are often included.
what is stratum and how does it differ from ufore?
Stratum combines a basic tree inventory program with cost-benefit analysis. The benefits of energy conservation, atmospheric contamination removal, stormwater runoff, carbon storage, and property values are automatically calculated. Stratum also analysis the cost of maintaining street and park trees, including the costs of planting, pruning, removal, sidewalk repair, storm and liability management, and pest management. The program compares the benefits and costs, projecting how the ratio of costs to benefits may change over time with different management treatments.
UFORE, the urban forest effects model, uses real-time standard field data from randomly located plots and local hourly air pollution and meteorological data to quantify urban forest structure and numerous urban forest effects for cities across the world. It provides all information on the value of atmospheric contaminant removal, carbon storage, energy conservation. It does not include an inventory program.
How does tree inventory become a part of a geographic information system?
computer hardware and software provide the system that links the data together.
How does an inventory of street and park trees assist in scheduling and prioritizing tree work, such as planting and pruning?
By providing information about the tree species, age and condition throughout the city the need for specific types of work can be more efficiently and effectively identified. For example
.tree species that need pruning at specific times of the year.
.trees at high risk for failure can be identified and placed on high priority.
.knowing the vacancy rate for street tree planting spaces allows the municipal arborist on new planting (if low) or maintenance and replacement (if high)
.Querying the inventory about work requirements for a given area of town will allow the tree crew to efficiently use there time.
Of a variety of information that can be obtained by a tree inventory, what are the ten most important to your community?
.pest magement
.adjustment of tree grates
.stake removal
.root pruning
.Pruning (by type)
.planting date
.pavement conflicts (presense, curb or sidewalk, action required)
.vacant planting spaces appropriate for conifer species
.risk of failure and possible targets
.maintenance requirements (removal, pruning, cabling, inspection) and the priority (immediate, low, moderate, high)
.age(young, semi mature, mature, senescent)
.structural defects (cracks, decay, hangers)
.pest problems (insect, disease, etc)
.condition (dead, very poor, poor, fair, good, excellent)
.Height and canopy spread (estimated or measured)
.trunk diameter or diameter class (measured or estimated)
.genius, species, cultivar (if known)
.presence of overhead utilities (directly above, to oneside)
.street and unit address
.Site parcell number (or some designation of the area)
What is Itree and how might it be a valuable resource to your community? How does it differ from a commercial tree inventory software?
Itree is a software tool that links Stratum, UFORE, and MCTI tree products allow Itree to analyze the costs, benefits and management needs of their urban forest. Itree can be used within a community to compare and contrast the cost and benefits of different tree species, sizes, and life spans. Itree is different from a commercial tree inventory software in that it uses USDA forest service software to analyze the costs and benefits of the urban forest.
What is GPS
Global positioning satellite
What category is NOT part of a tree inventory
tree sustainability for preservation
adding natural information to a GIS does what?
creates a link between tree information and location
What component is NOT part of itree?
WCISA
What Does a cost-benefit analysis compare?
The overall benefits of the tree with the associated costs of tree management.
