Fig. 6
From: Fire and land cover change in the Palouse Prairie–forest ecotone, Washington and Idaho, USA
Vegetation change in the Palouse Prairie–forest ecotone. (A) Number and (B) percentage of each of 2793 General Land Office (GLO) section corner points in the ecotone showing historical vegetation class (horizontal axis) with existing vegetation type class. Prairie was most abundant in the ecotone (>1500 of 2793 GLO section corner points); much of the prairie is now agriculture, in the Conservation Reserve Program (CRP), or developed. Surveyors recorded 100% of the bearing trees as pine (we judged these to be ponderosa pine) at 450 section corners and now about half of those corners are forested