Drylands - Total Area
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https://cmr.earthdata.nasa.gov/search/concepts/C2232849159-CEOS_EXTRA.html
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资源简介：
The concept of drylands continues to be debated. In this data set, drylands are taken as areas with a potential hazard of desertification. The hyperarid zone is not subject to desertification and is therefore excluded. Hence drylands are defined as the arid, semi-arid and dry subhumid zones, or areas with lengths of growing periods of 1-179 days.
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CEOS_EXTRA
