An attribute is any property, quality, or Characteristic of sampling unit. The Indicators and other measures used to characterize a sampling site or resource unit are representations of the attributes of that unit or site. A characteristic of a map feature (point, line, or polygon) described by numbers or text; for example, attributes of a tree, represented by a point might include height and species. (See related: continuous.)
Other /More definition:
An Attribute is a measurable component of a biological system.
Other /More definition:
An Attribute is a measurable component of a biological system. (Karr, J.R., and E.W. Chu. 1997.

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