The i-Tree Tools are a state-of-the-art, peer-reviewed software suite from the USDA Forest Service that helps communities of all sizes strengthen their urban forest management and advocacy efforts by quantifying the urban forest and the environmental, economic and quality of life services that it provides. I-Tree calculates tree canopy coverage percentages for most Minnesota cities, as does this map of city tree canopy coverage from 2013.
Typically forestry goals are included in a city's comprehensive plan, and the city adopts an urban forest management plan that includes a budget for upkeep of a city tree inventory and preservation of soils. A "5-10-15" tree-diversity goal for reducing the risk of catastrophic tree loss due to pests is to have in the city tree canopy no more than 5% of any one species, 10% of any one genus, and 15% of any one family.
A minimum number of trees planted by the city each year, OR at least 2-3 trees planted for each city tree lost.
An overall city tree canopy of at least 30% and/or a canopy above 60% for residential areas; use I-Tree for tree inventory of trees on City property or city-wide; include tree replacement money in Pavement Management Program budget.
Have in the city tree canopy no more than 5% of any one species, 10% of any one genus, and 15% of any one family; have an overall city tree canopy of at least 40%, with canopy over parking lots (~50%), canopy over residential (~60% - 75%), canopy over commercial/industrial; use iTree to quantify benefits of your urban canopy.
Who's doing it
Golden Valley - 3 star
Date action report first entered:
Date of last report update:
Year action initially completed: 2015
Golden Valley has an annual budget for tree planting in parks and public spaces ranging from $10,000 to $30,000 in addition to a budget for tree replacement as part of the Pavement Management Program. The City continues to monitor and inspect trees for disease and pests on public land and makes an effort to replace them with native, resilient species. Annually the City plants between 50-75 trees for both parks and as part of the Emerald Ash Borer replacement program. 5-10 trees are planted as part of other construction projects each year as well.
As of 2016, according to EarthDefine Geospatial Data and Services, which uses Light Detection and Ranging (LiDAR) data to determine percent tree canopy, Golden Valley has an overall city tree canopy of 40.5%.p
According to a DNR tree inventory conducted in 2010, Golden Valley has about 21.8 trees per acre in areas maintained by the City.
Outcome measures/metrics/money saved:
In 2015, 128 trees were planted in Golden Valley (74 public, 50 residential). 210 trees were removed from public property and 145 diseased trees were condemned on private property. $18,460 was spent on tree planting and initial care, $41,412 was spent on tree maintenance, and $16,500 was spent on removals. The total community forestry expenditures were $273,266.80 (Golden Valley population: 20,371).
In 2016, 60 (2”-2.5” balled and burlapped) shade and evergreen trees were planted throughout the parks and other public properties.
The city has achieved an overall tree canopy of at least 30% as well as they are continuing to purchase and utilize native trees. Continual effort to plant more trees is being taken.
Outcome measures/metrics/money saved:
Native plants are useful to preserve the terrestrial ecosystem of Northern Minnesota. Due to extensive clear cutting in the early 1900's all of Northern Minnesota's old growth forests have disappeared. An active effort to plant and protect native plants will rejuvinate Minnesota's coniferous and deciduous forest.
The City of Royalton Tree Management Plan 2019 text is written and budget information will be used for the 2020 budget year. Emerald Ash Borer has been found in a neighboring county and the Tree Management Plan is used to help the city budget for treatment of infected trees or removal based on recommendations from the MN Department of Agriculture.
Outcome measures/metrics/money saved:
Using guidance from the Tree Management Plan we will budget $5/ash tree for treatment of infestation of EAB and $2,000/ash tree for removal. The goal is to establish which trees are healthiest to save and to remove trees that are showing signs of EAB.
In 2010, the University of Minnesota Spatial Analysis Laboratory performed a land cover classification for the City of Saint Paul defining tree canopy, impervious surface, buildings, water, grass and bare soil.
• Tree canopy cover in 2010: 32.5% of the total land area of Saint Paul
• 66.2% of Saint Paul is suitable for tree canopy cover
The Tree Canopy Study revealed that residential, single-family parcels offer the greatest area for increased canopy cover. As a result, The City has worked with partnering agencies and community volunteers when possible to increase planting on private property, especially is areas with the lowest canopy percentage, e.g., Frogtown. Overall, it is projected that Saint Paul will spend over $700,000 on tree planting in 2014 using various funding sources.
In preparation for EAB Bloomington has funding budgeted for the removal and replacement of 8000 public ash trees in parks. The activity started in 2013 and will ramp up over the next 11 years. Other activities funded in this budget include the City’s Arbor Day tree sale where residents are allowed to pre-order bare root trees to be planted in their yard. To increase diversity the species of trees made available are adjusted each year.
In July 2012, Cottage Grove created a Public Landscape Initiative Program to motivate volunteers and employees within the City to contribute to beautification efforts. Projects are focused on active management of the urban forest, reforestation of highly visable community parks, public lands, and transportation corridors as well as provision of tree planting/landscaping , employee team building, and community volunteer opportunities. These tree planting and landscape goals are recorded and budgeted in our CIP through 2018. The city also recorded all of our boulevard trees in the community via GPS to help inventory, identify condition, size, species and other concerns with tree growth projections, disease monitoring, and tree trimming. This allows to provide a detailed management plan that aids in our budget preparation.
The city does a spring and fall planting every year and looks for spaces in newly developed areas to plant new trees. We also keep record of places that we have had to remove trees so that we make sure to replant in those areas. We received an Emerald Ash Borer grant and are working to reduce the number of Ash trees by replacing them with other varieties throughout the city.
Rochester has continually assessed their tree canopy. Currently Rochesters tree canopy is at 27% with a total potential of 47%. The percent of water in the city is currently 2.7% while impervious land accounts for 22%
The city spends $2 per capita on tree planting and care every year. The majority of that is spent on planting. The city is also working with residents to start a volunteer planting and care program in 2015.
The city has a standing line item in the budget each year for tree planting and maintenance. In 2013, the city planned for and budgeted funds to plant 500 trees.
In 2009, the City of Woodbury received a Community Conservation Assistance Grant through the Minnesota Department of Natural Resources’ Metro Greenways Program. The purpose of the grant was to conduct an Urban Tree Canopy assessment, in order to determine the current tree cover across the city. The Urban Tree Canopy (UTC) is the layer of leaves, branches, and stems of trees that cover the ground when viewed from above.
The most important finding of the UTC assessment was the percent tree canopy cover for the City of Woodbury. The city currently has a canopy cover of approximately 22%. The 70% of the city that is developed to its ultimate condition has a canopy of 23%. There is a significant range in the canopy among neighborhoods. Neighborhoods, depending on age and development practices at the time of development, have a canopy cover anywhere between 10% and 50%.
Based on the results of the UTC, the city set goals for increasing UTC, developed an implementation plan for achieving the goals, and has established a monitoring program to track progress. Based on research identifying the benefits of trees in the urban landscape, Woodbury has adopted the goal of increasing the UTC in the city’s 2030 Comprehensive Plan. These benefits include improved water and air quality, reduced heating and cooling costs, and increased property values.
Development projects that remove trees must replace 10-50% DBH depending on the context. All trees removed as part of the Emerald Ash Borer Management plan must be replaced and after the EAB project has finished the informal goal is to continue planting 400-600 trees per year.
Duluth just completed a street tree inventory using iTree and has begun analyzing the results to find patterns in tree dispersal and guide planting efforts.