Figure 7
From: Terrestrial denitrification: challenges and opportunities
A topographic index of soil wetness (a) and AVIRIS-derived foliar N (~17 m resolution) (b) and for the ~ 3,000 ha Hubbard Brook Experimental Forest, NH, USA. Note “hotspots” of high foliar N (light colors) in the cutover watersheds in the top right corner of the image and dark areas of low foliar N in the conifer-dominated areas at the bottom/center and top left corners of the image. From Kulkarni et al. (2008).