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El Malpais National Monument Vegetation Mapping Project - Spatial Vegetation Data

Summary

We developed a vegetation classification and high-resolution vegetation map for El Malpais National Monument, New Mexico, as part of the USGS Vegetation Characterization Program, a cooperative effort by the U.S. Geological Survey (USGS) and the National Park Service Inventory & Monitoring - Vegetation Mapping Program to classify, describe, and map vegetation communities in more than 280 national park units across the United States. The classification and map follow the guidelines and requirements of the national program, and were based on data collected from 476 field plots between 2006 and 2009. Based on the field sampling, we identified 50 plant associations following the guidelines of the National Vegetation Classification Standard [...]

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25.7 GB

Purpose

Overall, the map was designed to facilitate ecologically based natural resources management at a 1:24,000 scale with 0.25-ha minimum map unit size. Based on an independent sample of 1,195 plots, overall accuracy was 97% for the broad themes of forest/woodland, shrubland, grassland, and other land types; 88% for Level 1 (the Group level of the National Vegetation Classification), and 80% for Level 2, the finest units. Level 1 units will likely be sufficient and most appropriate for many natural resource plans and evaluations, while Level 2 units provide added fine-scale information within major ecological groups. To support the map as a management tool, we provide an annotated map legend along with local descriptions of each plant association, a corresponding diagnostic key, field forms, and a plant species list. The map was delivered in both printed form and as digital Geographic Information System (GIS) map files. The GIS format allows flexibility to update the map as new information becomes available or as major vegetation changes such as those caused by fire, disease, or other impacts, occur in the park.

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  • 27 Gb ELMA.zip file needs to be added to this record

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