A New Map of Global Ecological Land Units –
An Ecophysiographic Stratification Approach
Published by the AAG in 2014, this booklet makes a major contribution to understanding the physical and ecological geography of the Earth.
This special publication describes the concepts and methods for delineating ecological land units (ELUs) as distinct physical environments and associated land cover.
The ELUs were developed in response to the need for a high resolution, standardized, and data-derived map of global ecosystems for use in analyses of climate change impacts, assessments of economic and non-economic value of ecosystem goods and services, biodiversity conservation planning, and natural resource management.
Detailed and accurate maps of ELUs are presented for the Earth and the continents, as well as regional examples.
The work was done in a public/private partnership between the United States Geological Survey (USGS) and Esri, and was commissioned by the Group on Earth Observations (GEO) as part of an intergovernmental protocol called the Global Earth Observation System of Systems (GEOSS).
This special publication is free to download:
Low resolution PDF booklet (1.9MB)
High resolution PDF booklet (33.8MB) (This version will take some time to download.)