nitrogen http://www.snr.arizona.edu/taxonomy/term/350 The taxonomy view with a depth of 0. en Carbon in the Desert http://www.snr.arizona.edu/project/carbon <p>Can shrubs in desert grasslands mitigate climate change? carbon adaptation carbon carbon credit carbon sequestration mesquite nitrogen woody plant encroachment Arizona Fri, 07 Mar 2008 09:05:47 -0700 alyssa 233 at http://www.snr.arizona.edu