Description: DetailsThe data have been created on behalf of the Urban Forest Stewardship Initiative (UFSI), a program of Habitat Acquisition Trust (HAT) by Caslys Consulting Ltd. UFSI is a partnership of individuals, organizations and governments dedicated to the conservation, restoration and sustainable use of Greater Victoria's urban forest. Urban forests are treed landscapes found within a community. They include old-growth remnants, backyard fruit trees, urban parks and trail systems, Garry oak meadows, and treed boulevards. The challenge within Greater Victoria is that the population rate is estimated to increase by 33% over the next 20 years which emphasizes the need to increase the awareness of the benefits of urban forest, and the importance of implementing land use planning initiatives to promote the sustainable development of the region. A critical step in the process is the development of an urban forest stewardship strategy, however, very little information exists related to the characteristics and amount of urban forest and impervious surface within the region. As a result, the UFSI identified the need to map the urban forest in Greater Victoria for two time periods - 1986 and 2005. The mapping will help identify the quantity of the forest and provide a visual aid to support decision making. The mapping outlined in this report is the first phase of a two-stage process, providing information on changes to the extent and density of the urban forest canopy cover and the amount of impervious surface in the study area as of 1986 and 2005, based on a one-hectare grid that was used to summarize the data. These data layers have been created based on 2005 orthophoto imagery provided by the CRD and its member municipalities. The tree cover density statistics are based on the percentage of tree cover in each 1 hectare grid cell. For interpretation purposes, the density values have been grouped into the following classes: 0-5, >5-10, >10-25, >25-50, >50-75, and >75. The tree cover density values were summarized for: the entire study area; each municipality; and for the parks within the study area. When interpreting the statistics it is important to consider the percent change in the context of the change in area - classes with small areas can have a large percentage changes. Impervious surface density values for the two time periods for the study area indicate a consistent increase in impervious surface throughout the study area between 1986 and 2005. The number of cells with minimal impervious surface (the 0-5 % class) decreased by 9.2%. In other words, there are 2,942 hectares where pervious surfaces, present in 1986, have been replaced with enough impervious surface to move these cells into a higher density class in the 2005 time period. All of the other classes indicate an increase in density with 197 hectares moving to the very highly developed (>75%) class. For more information, please visit Habitat Acquisition Trust's website at http://www.hat.bc.ca/index.php?option=com_content&view=article&id=10&Itemid=8MaintenanceThis feature class is maintained manually when new Land Cover Analysis data is available.CustodianIT&GISHistory2023-07: 2011 and 2019 data addedMetadata ContactIT&GISSignificant Changes2023-07: 2011 and 2019 data addedCreation DateUnknown
OBJECTID (Type: Int32, Visible: True, Searchable: True, Can Symbolize Unique Value: True, Can Symbolize Class Breaks: True, Addressable: True)
AdminArea [Admin Area] (Type: String, Visible: True, Searchable: True, Can Symbolize Unique Value: True, Can Symbolize Class Breaks: True, Addressable: True)
BinForest86 [Bin Forest 1986] (Type: String, Visible: True, Searchable: True, Can Symbolize Unique Value: True, Can Symbolize Class Breaks: True, Addressable: True)
BinImpervious86 [Bin Impervious 1986] (Type: String, Visible: True, Searchable: True, Can Symbolize Unique Value: True, Can Symbolize Class Breaks: True, Addressable: True)
PercentForest86 [Percent Forest 1986] (Type: Double, Visible: True, Searchable: True, Can Symbolize Unique Value: True, Can Symbolize Class Breaks: True, Addressable: True)
PercentImpervious86 [Percent Impervious 1986] (Type: Double, Visible: True, Searchable: True, Can Symbolize Unique Value: True, Can Symbolize Class Breaks: True, Addressable: True)
BinForest05 [Bin Forest 2005] (Type: String, Visible: True, Searchable: True, Can Symbolize Unique Value: True, Can Symbolize Class Breaks: True, Addressable: True)
BinImpervious05 [Bin Impervious 2005] (Type: String, Visible: True, Searchable: True, Can Symbolize Unique Value: True, Can Symbolize Class Breaks: True, Addressable: True)
PercentForest05 [Percent Forest 2005] (Type: Double, Visible: True, Searchable: True, Can Symbolize Unique Value: True, Can Symbolize Class Breaks: True, Addressable: True)
PercentImpervious05 [Percent Impervious 2005] (Type: Double, Visible: True, Searchable: True, Can Symbolize Unique Value: True, Can Symbolize Class Breaks: True, Addressable: True)
BinForest11 [Bin Forest 2011] (Type: String, Visible: True, Searchable: True, Can Symbolize Unique Value: True, Can Symbolize Class Breaks: True, Addressable: True)
BinImpervious11 [Bin Impervious 2011] (Type: String, Visible: True, Searchable: True, Can Symbolize Unique Value: True, Can Symbolize Class Breaks: True, Addressable: True)
PercentForest11 [Percent Forest 2011] (Type: Double, Visible: True, Searchable: True, Can Symbolize Unique Value: True, Can Symbolize Class Breaks: True, Addressable: True)
PercentImpervious11 [Percent Impervious 2011] (Type: Double, Visible: True, Searchable: True, Can Symbolize Unique Value: True, Can Symbolize Class Breaks: True, Addressable: True)
BinForest19 [Bin Forest 2019] (Type: String, Visible: True, Searchable: True, Can Symbolize Unique Value: True, Can Symbolize Class Breaks: True, Addressable: True)
BinImpervious19 [Bin Impervious 2019] (Type: String, Visible: True, Searchable: True, Can Symbolize Unique Value: True, Can Symbolize Class Breaks: True, Addressable: True)
ClaFor11 [Forest Class 2011] (Type: Int32, Visible: True, Searchable: True, Can Symbolize Unique Value: True, Can Symbolize Class Breaks: True, Addressable: True)
ClaImp11 [Impervious Class 2011] (Type: Int32, Visible: True, Searchable: True, Can Symbolize Unique Value: True, Can Symbolize Class Breaks: True, Addressable: True)
ClaFor19 [Forest Class 2019] (Type: Int32, Visible: True, Searchable: True, Can Symbolize Unique Value: True, Can Symbolize Class Breaks: True, Addressable: True)
ClaImp19 [Impervious Class 2019] (Type: Int32, Visible: True, Searchable: True, Can Symbolize Unique Value: True, Can Symbolize Class Breaks: True, Addressable: True)
ChaFor1119 [Change Forest Class 2011 to 2019] (Type: Int32, Visible: True, Searchable: True, Can Symbolize Unique Value: True, Can Symbolize Class Breaks: True, Addressable: True)
ChaImp1119 [Change Impervious Class 2011 to 2019] (Type: Int32, Visible: True, Searchable: True, Can Symbolize Unique Value: True, Can Symbolize Class Breaks: True, Addressable: True)
CMA (Type: String, Visible: True, Searchable: True, Can Symbolize Unique Value: True, Can Symbolize Class Breaks: True, Addressable: True)
SHAPE (Type: Object, Visible: True, Searchable: True, Can Symbolize Unique Value: True, Can Symbolize Class Breaks: True, Addressable: True)
SHAPE.STArea() (Type: Double, Visible: True, Searchable: True, Can Symbolize Unique Value: True, Can Symbolize Class Breaks: True, Addressable: True)
SHAPE.STLength() (Type: Double, Visible: True, Searchable: True, Can Symbolize Unique Value: True, Can Symbolize Class Breaks: True, Addressable: True)