Figure 1
From: Carbon benefits from protected areas in the conterminous United States
Spatial distribution of generalized land protection status involving forestlands in the conterminous US. Protected = Gap codes 1 & 2, Partial Protected = Gap code 3, and Less Protected = Gap code 4 of the PADUS 1.1[36]. Numbers in the parentheses are frequency distribution. Unprotected forestlands were obtained after subtracting all forestlands contained in the PADUS 1.1 from all US conterminous forestlands in 2001 obtained from the change map[14].