By: Dasha Pechurina, Travis Lange, & Aaron...
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SUITABILITY ANALYSIS FOR MUSHROOM FORAGING ON MARIN MUNICIPAL WATER DISTRICT PROPERTY By: Dasha Pechurina, Travis Lange, & Aaron Miller PROBLEM: In this project, we attempted to analyze the suitability for mushroom foraging of the Marin Municipal Water District’s property in southwestern Marin County, California. This would aid the Marin Municipal Water District in facilitating public recreational use of their property. SOLUTION: Our Suitability Analysis used the following factors: Vegetation – Most fleshy fungi depend on specific habitats to thrive. Saprotrophic fungi, or decomposers, are generally specialized to specific substrates. For example, “brown rots” decompose cellulose, while “white rots” specialize in lignin, and Auriscalpium vulgare only grows on Douglas-fir cones. Other fungi are ectomycorrhizal and form symbiotic relationships with particular plant species, exchanging minerals they uptake from the soil for carbohydrates produced by the plants. Cantharellus californicus, the Golden Chanterelle, coexists with Quercus agrifolia, the Coast Live Oak. We reclassified habitats from a California Department of Fish and Wildlife dataset based on their overall suitability for a variety of edible mycoflora. Accessibility – Because ease of access is crucial to the public’s ability and motivation to successfully forage, we buffered trails with graduations up to 500 feet and generated a slope raster. Both the trails shapefile and the DEM that we generated the slope raster from came from MarinMap, the County of Marin’s portal for GIS data. Moisture – Because mushrooms depend on moist environments to grow, we generated an NDVI to show lushness of vegetation from USGS ortho imagery and an aspect raster that we reclassified to favor shadier aspects, again from the MarinMap DEM. SOURCE MarinMap: http ://www.marinmap.org/dnn/D ataServices/GISDataDownload.asp x USGS:https ://viewer.nationalmap. gov/basic/ Fish & Wildlife: https://map.dfg.ca.gov/bios/? al=d s996 Objective: Find suitable and accessible habitat for mushroom foraging in Marin Municipal Water District Data Collection: MarinMap: A Geographic Information System for Marin County The National Map: US Geological Survey BIOS: California Department of Fish and Wildlife Projection and Datum: California State Plane Zone III NAD 1983 (US feet) Raster Processing Spatial Analyst Tools Slope Image Analysis Normalized Difference Vegetation Index (NDVI) Spatial Analyst Tools Aspect Opportunities Layer Weights Vegetation Oak/Pine/Fir Mixed Wooded Some Grass/Bay Laurel +3 +2 +1 Slope 0-23% 23-50% +2 +1 Aspect Northeast East,North +2 +1 Trails Buffer Within 500 ft. Within 400 ft. Within 300 ft. Within 200 ft. Within 100 ft. +1 +2 +3 +4 +5 NDVI Value: 130- 160 +1 Constraints Layer Weigth Vegetation Poison Oak Chaparral Grassland -3 -2 -1 Slope 61-75% 75-90% 90-110% 148-253% 253-743% -1 -2 -3 -4 -5 Aspect West, South Southwest -1 -2 NDVI Value: 0- 100 -1 MODELING TYPES: We used raster processing to generate slope and aspect rasters from the MarinMap DEM. We used image processing to generate an NDVI from USGS Ortho imagery. After reclassifying our NDVI, slope and aspect rasters, vegetation polygons, and trail buffers, we used the raster calculator to generate a suitability map for the entire property. CONCLUSION: Our team successfully identified areas in the Marin Municipal Water District that are the most suitable for fungal foraging. This information could be added to trail markers to pique the public’s interest in mycology and casual foraging. LIMITATIONS: This suitability analysis was designed to help forage for mushrooms in a general sense; however, it may not be suitable for finding particular species. Verify your identification with an expert before considering consumption. Raster Processing Image Processing 1 2 Suitability Analysis 3 Image Processing 1 Suitability Analysis 3 Ortho Imagery Digital Elevation Mode (DEM) 2
Transcript of By: Dasha Pechurina, Travis Lange, & Aaron...
SUITABILITY ANALYSIS FOR MUSHROOM FORAGINGON MARIN MUNICIPAL WATER DISTRICT PROPERTY
By: Dasha Pechurina, Travis Lange, & Aaron Miller
PROBLEM:In this project, we attempted to analyze the suitability for mushroom foraging of the Marin Municipal Water District’s property in southwestern Marin County, California. This would aid the Marin Municipal Water District in facilitating public recreational use of their property.
SOLUTION:Our Suitability Analysis used the following factors:
Vegetation – Most fleshy fungi depend on specific habitats to thrive. Saprotrophic fungi, or decomposers, are generally specialized to specific substrates. For example, “brown rots” decompose cellulose, while “white rots” specialize in lignin, and Auriscalpium vulgare only grows on Douglas-fir cones. Other fungi are ectomycorrhizal and form symbiotic relationships with particular plant species, exchanging minerals they uptake from the soil for carbohydrates produced by the plants. Cantharelluscalifornicus, the Golden Chanterelle, coexists with Quercusagrifolia, the Coast Live Oak. We reclassified habitats from a California Department of Fish and Wildlife dataset based on their overall suitability for a variety of edible mycoflora.
Accessibility – Because ease of access is crucial to the public’s ability and motivation to successfully forage, we buffered trails with graduations up to 500 feet and generated a slope raster. Both the trails shapefile and the DEM that we generated the slope raster from came from MarinMap, the County of Marin’s portal for GIS data.
Moisture – Because mushrooms depend on moist environments to grow, we generated an NDVI to show lushness of vegetation from USGS ortho imagery and an aspect raster that we reclassified to favor shadier aspects, again from the MarinMap DEM.
SOURCEMarinMap: http://www.marinmap.org/dnn/DataServices/GISDataDownload.aspxUSGS:https://viewer.nationalmap.gov/basic/Fish & Wildlife: https://map.dfg.ca.gov/bios/?al=ds996
Objective:Find suitable and accessible habitat for mushroom foraging in Marin Municipal Water District
Data Collection:MarinMap: A Geographic Information System for Marin CountyThe National Map: US Geological SurveyBIOS: California Department of Fish and Wildlife
Projection and Datum:California State Plane Zone III NAD 1983 (US feet)
Raster Processing
Spatial Analyst Tools Slope
Image Analysis Normalized Difference
Vegetation Index (NDVI)Spatial Analyst Tools
Aspect
OpportunitiesLayer Weights
Vegetation Oak/Pine/FirMixed Wooded
Some Grass/Bay
Laurel
+3+2+1
Slope 0-23%23-50%
+2+1
Aspect NortheastEast,North
+2+1
Trails Buffer Within 500 ft.Within 400 ft.Within 300 ft.Within 200 ft.Within 100 ft.
+1+2+3+4+5
NDVI Value: 130-160
+1
Constraints
Layer Weigth
Vegetation Poison OakChaparralGrassland
-3-2-1
Slope 61-75%75-90%
90-110%148-253%253-743%
-1-2-3-4-5
Aspect West,South
Southwest
-1-2
NDVI Value: 0-100
-1
MODELING TYPES:
We used raster processing to generate slope and aspect rasters from the MarinMap DEM.
We used image processing to generate an NDVI from USGS Ortho imagery.
After reclassifying our NDVI, slope and aspect rasters, vegetation polygons, and trail buffers, we used the raster calculator to generate a suitability map for the entire property.
CONCLUSION:Our team successfully identified areas in the Marin Municipal Water District that are the most suitable for fungal foraging. This information could be added to trail markers to pique the public’s interest in mycology and casual foraging.
LIMITATIONS:This suitability analysis was designed to help forage for mushrooms in a general sense; however, it may not be suitable for finding particular species. Verify your identification with an expert before considering consumption.
Raster Processing
Image Processing
1
2
Suitability Analysis3
Image Processing1
Suitability Analysis3
Ortho Imagery
Digital Elevation Mode (DEM)
2
