Tree Densities Last Century on the Lowland Gippsland Plain, Victoria

Autor: Lunt, I.D.
Zdroj: Australian Geographical Studies; November 1997, Vol. 35 Issue: 3 p342-348, 7p
Abstrakt: Tree densities in the mid 1800s were calculated for 16 areas on the lowland Gippsland plain, Victoria, using data on historical maps. The plotless, closest individual method was used on map data, which listed the distance and compass bearings of trees from allotment corners. Densities ranged from 2 to 59 trees per hectare, with most estimates below 30 trees per hectare. Sparsest trees were in and near areas mapped as `open plains' and the densest tree cover was on seasonally flooded river flats. Whilst it seems prudent to treat such figures as indicative rather than precise, this simple method holds considerable promise for obtaining quantitative estimates of tree densities before widespread clearing.
Databáze: Supplemental Index