To understand the mechanisms by which competition control and ... relationship and may significantly cut processing time. of minirhizotron video taped images. ...
... collections for leaf litter production, and minirhizotron ... New Phytologist 162:343-354. Figure 2: N mass in fine roots. Figure 4: N use efficiency ...
Thesis work in Ecosystem ecology Mycorrhizal and fine root turnover The rate that fine roots and rhizomorphs release CO2 to the atmosphere has important implications ...
AM plants: Juniper. Creosote Bush. Grasses. Fertilization: Grasslands (1997, Allen and Allen) ... Survival- example. Juniper productivity. Junipers, N and Bears ...
Cores of root-free soil imbedded into profile. Remove cores and obtain root mass. Will disturbance cause nutrient release from soil and attract roots? ...
Primary production is the chemical energy generated by autotrophs, derived from ... composition of plants, sap-feeding insects, herbivores, and predatory arthropods. ...
Forest Sensitivity to Elevated Atmospheric CO2 and its Relevance to Carbon Management Richard J. Norby Oak Ridge National Laboratory Aspen Global Change Institute
Nitrogen-use efficiency of a sweetgum forest in elevated CO2 Richard J. Norby1 and Colleen M. Iversen2 1Oak Ridge National Laboratory, Oak Ridge, TN; 2University of ...
... Science Foundation, and the National Aeronautic and Space Administration. ... The National Aeronautics and Space Administration (NASA) and the U.S. Geological ...