Columbia University
Nasa: Sedac: Land Use and Land Cover Change
[Free Registration/Login Required] A collection of twenty-six data sets from SEDAC (Socioeconomic Data and Applications Center) that examine land use and how human activities have impacted on land cover. They look at agriculture, loss of...
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Minnesota Dnr: Ecological Principles & Land Cover Characteristics
Lists the six attributes used to identify terrestrial and wetlands areas that are important ecologically. These attributes are based on four ecological principles, which are explained.