Rangeland Ecology & Management

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CHALLENGES AND OPPORTUNITIES OF USING SAMPLEPOINT TO SUPPORT RANGE INVENTORY AND MONITORING
Author
Fults, Gene A.
Publisher
Society for Range Management
Publication Year
2015
Body

SamplePoint is software developed by the ARS which grids a range of points for density onto a photograph image, generally a .jpg. The crossshair points can zoom to pixel size so file sizes of at least 3 megabites are needed. Percent plant, litter, and bare ground cover are easily determined in about 5 minutes per image. Overhead canopy along riparian areas can be captured rapidly for later analysis. Some aspects of functional groups can be interpreted. Rough forage quality green to yellow to brown ratios can be determined. Knowledge of species and expertise in plant identification are helpful but do not fully achieve a reliable frequency assessments from the photos. Especially in taller vegetation. The value of this tools helps support professional judgements when care in sample collection of photos, scale consistency, and lens angles are observed.

Language
English
Resource Type
Text
Document Type
Conference Proceedings
Conference Name
SRM Sacramento, CA