Frank Falzone Ross Meyer FR 3262 10.December.2012 Identifying Potential Plantation Sites for Hybrid Hazelnut Production in a Micro-Cooperative Context Frank Falzone Ross Meyer FR 3262 10.December.2012
Outline Hybrid hazels in context Desired project output Data acquisition Procedures Accuracy assessment Results Limitations and potential revisions
Hybrid Hazels: The Future is Nuts Current industry and EFB Hybridization trials Current state of midwest industry
Potential Plantation Sites Currently underutilized land Along regularly driven routes Semi-rural residential or hobby farm Away from road salt zone At least 1/20th acre
Procedure Outline - Data Download shapefiles of streets, county roads, major roads, and parcels of Hennepin County Clip shapefiles to general AOI PLSS sections containing regularly traveled roads
Area of interest: Portions of Maple Grove, Corcoran, Rogers, St Area of interest: Portions of Maple Grove, Corcoran, Rogers, St. Michael, Hanover, MN
Pre-processing Dissolve desired sections into 1 polygon Begin selecting and exporting features not desired Parcels less than 1.5 acres Roads with a 55, 75, or 150 foot buffer, depending on road size Erase these undesired areas
Pre-processing continued Convert single polygon shapefile into multi- polygon Delete small polygon fragments
Pre-processing Download 4 band CIR imagery for Hennepin County 2008 from MNGeo (NAIP) Contained information for the small portion of our AOI in Wright County Summer aerial photographs One meter spatial resolution
Classification Open in ERDAS to run supervised classification Classes: Grass Unused pasture Agriculture Developed Open water Forest
Classified Image Sample
Accuracy Assessment Number of Pixels Classified as - Om. Prod. Ref. Class Forest Ag Developed Unused Grass Total Error Acc. (%) 9 2 1 12 25 75 3 11 7 21 47.62 52.38 100 4 5 20 80 66.67 33.33 15 17 50 na Co. Error 26.67 76.47 User Acc.% 73.33 23.53 60 60% overall Accuracy with Grass and Unused Pasture as individual classes
Accuracy Assessment Continued Number of Pixels Classified as - Om. Prod. Ref. Class Forest Ag Developed Unused/Grass Total Error (%) Acc. (%) 9 2 1 12 25 75 3 11 7 21 47.62 52.38 100 14 14.29 85.71 15 20 50 na Co. Error (%) 26.67 40 User Acc. % 73.33 60 70 70% Overall Accuracy with Unused Pasture and Grass as a combined class
Results Total classified acres of suitable land: 1383 grass 1983 unused pasture
Results
Results
Limitations / Possible Improvements Classification Use spring/fall imagery for certain classes More training sites Better definition of desired classes Area of interest filtering Split grass/unused pasture polygons along parcel lines and remove those patches less than 1/20th acre in a single parcel
Questions?