Service Description: The purpose of the project was twofold:
1) To detect changes in the amount and distribution of aspen within the study area in the South Warner Mountains over a 48 year duration using aerial photograph interpretation.
2) To collect field data on the current condition of aspen stands, and their use by wildlife.
Service ItemId: 67a11a07d5714ad1acbcfce1cf08c371
Has Versioned Data: false
Max Record Count: 2000
Supported query Formats: JSON
Supports applyEdits with GlobalIds: False
Supports Shared Templates: True
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Layers:
Description: This dataset displays aspen stands in the Warner Mountains south of State Highway 299. The 1946 and 1994 data are presented as polygons depicting aspen stands derived from aerial photos taken in 1946 and 1994, respectively, while the 2002 data includes the aspen stand delineations and their corresponding vegetation data (i.e., size distribution of aspen, the canopy and shrub cover, the number of species of grasses and forbs, and the ratio of conifers to aspens). The polygons ranged in size from less than 0.2 acres to more than 1,130 acres. There are 2103 records, one for each aspen stand mapped and sampled. All data were collected and summarized by Aaron Di Orio, California Department of Fish and Wildlife. This is one of three data sets for a study investigating change in the size of aspen stands since 1946. Other available data sets are 1946 and 1994 aerial photo mosaics.
Copyright Text: Aaron Di Orio; ; California Department of Fish and Wildlife (CDFW); Northern California - North Coast Region; Shasta Valley Wildlife Area; Montague, CA 96064; (530) 340-3913; ; ; adiorio@dfg.ca.gov;
Spatial Reference: 102100 (3857)
Initial Extent:
XMin: -13396919.70759
YMin: 5019526.384755
XMax: -13367959.51281
YMax: 5092779.922145
Spatial Reference: 102100 (3857)
Full Extent:
XMin: -13395603.3351
YMin: 5022856.091
XMax: -13369275.8853
YMax: 5089450.2159
Spatial Reference: 102100 (3857)
Units: esriMeters
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