R D Evans
Affiliation: University of Arkansas
- Physiological mechanisms influencing plant nitrogen isotope compositionR D Evans
University of Arkansas Stable Isotope Laboratory, Biological Sciences, University of Arkansas, Fayetteville, AR 72701, USA
Trends Plant Sci 6:121-6. 2001..Future work must address acquisition of organic nitrogen from the soil solution, the role of mycorrhizae, and internal transformations within the plant...
- Bromus tectorum invasion alters nitrogen dynamics in an undisturbed arid grassland ecosystemL J Sperry
Department of Biology, University of Arkansas, Fayetteville, Arkansas 72701, USA
Ecology 87:603-15. 2006..Lack of new inputs combined with continued loss will result in lower total soil N, evidenced by the lower total soil N in the invaded/disturbed communities...
- Responses of soil nitrogen dynamics in a Mojave Desert ecosystem to manipulations in soil carbon and nitrogen availabilityS M Schaeffer
601 Science and Engineering Building, University of Arkansas Stable Isotope Laboratory, University of Arkansas, Fayetteville 72701, USA
Oecologia 134:547-53. 2003..These findings have implications for ecosystems undergoing changes in soil C and N availability due to such processes as desertification, exotic species invasions, or elevated atmospheric CO(2) concentration...
- Pulse additions of soil carbon and nitrogen affect soil nitrogen dynamics in an arid Colorado Plateau shrublandSean M Schaeffer
University of Arkansas Stable Isotope Laboratory, University of Arkansas, Fayetteville, Arkansas 72701, USA
Oecologia 145:425-33. 2005....