PATCHKEY is a new conceptual patch classification model extending the QLD DPI &F ABCD system for describing grazing induced patch changes. Using both vegetation and soil variables we are able to describe "key" patch types which have an associated hydrologic function, and describe overall landscape health. Here we investigate the practical application of PATCHKEY using quick pass transect based sampling, linked to remote sensing to describe landscape condition and derived hydrological function over large areas. A classified image was derived using the ground data to ground truth high resolution imagery. The classified image was studied for patch type size and arrangement for three landscape positions of high, medium and low cover. The match between hydrologic function to PATCHKEY derived patches was also investigated.
Renmark, South Australia
ISSN 1323 660
Full-text publications from the Australian Rangelands Society (ARS) Biennial Conference Proceedings (1997-), Rangeland Journal (ARS/CSIRO; 1976-), plus videos and other resources about the rangelands of Australia.