Field data for the Vegetation Mapping Inventory Project of Pipe Spring National Monument

This reference is an assemblage of field data collected as part the baseline vegetation inventory for the park unit. Typical files here are vegetation plot data, accuracy assessment data, field photos, PDF showing locations of vegetation plots and accuracy assessment data, and other data for this type. The sampling area included the entire Monument and an environs extending 100m beyond the boundary. Given the very small project area and ease of accessibility and landscape viewing, we visited all potential map polygons in the field and collected vegetation plot data, observation point data, and/or field notes on aerial photographs for every polygon. The sampling was completed in August 2007 by the NCPN vegetation mapping program manager. Two vegetation plots and four observation points were sampled and field notes recorded during the 2007 field visit. A third plot was added to the data set in September 2008. Field crews placed classification plots subjectively within stands in order to represent accurately the association being sampled. Ecotones (areas where two or more plant communities intermix) were avoided. Highly disturbed areas were also avoided unless they covered at least 0.5 hectares. Plots were generally located in stands exceeding the project minimum mapping unit (MMU) of 0.1 hectares. Plot size and shape requirements were consistent with National Vegetation Mapping Program guidelines. Plot size was determined by the physiognomy of the community being sampled. Plot shape was adjusted as needed to sample smaller stands of vegetation. Plot size and shape were recorded for all PISP plots.