Forest variability index: a vector quantifying forest stand diversity and forest compactness

A vector of forest variability consisting of a forest stand diversity index and a compactness index has been defined. Forest stand diversity depends on the unevenness of the forest that is characterized as a continuum from an even-aged forest with only one patch to an uneven-aged forest with infinite number of patches. A forest stand diversity index is proposed to quantify the point at which a forest falls on this continuum. The shape and fragmentation of a forest is expressed in a compactness index. Forest stand diversity and compactness both affect the potential of a forest to support wildlife. Analytical relationships among the compactness index, home range size relative to the forest area, and the wildlife population has been postulated. These indices can be used for valuation of forest diversity and for developing sustainable forest management plans.