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Full-Text Articles in Geophysics and Seismology
A Simplified Approach For Estimating Soil Carbon And Nitrogen Stocks In Semi-Arid Complex Terrain, Melvin L. Kunkel, Alejandro N. Flores, Toni J. Smith, James P. Mcnamara, Shawn G. Benner
A Simplified Approach For Estimating Soil Carbon And Nitrogen Stocks In Semi-Arid Complex Terrain, Melvin L. Kunkel, Alejandro N. Flores, Toni J. Smith, James P. Mcnamara, Shawn G. Benner
Geosciences Faculty Publications and Presentations
We investigated soil carbon (C) and nitrogen (N) distribution and developed a model, using readily available geospatial data, to predict that distribution across a mountainous, semi-arid, watershed in southwestern Idaho (USA). Soil core samples were collected and analyzed from 133 locations at 6 depths (n=798), revealing that aspect dramatically influences the distribution of C and N, with north-facing slopes exhibiting up to 5 times more C and N than adjacent southfacing aspects. These differences are superimposed upon an elevation (precipitation) gradient, with soil C and N contents increasing by nearly a factor of 10 from the bottom (1100 m elevation) …
Taxonomy, Nomenclature, And Evolution Of The Early Schubertellid Fusulinids, Vladimir I. Davydov
Taxonomy, Nomenclature, And Evolution Of The Early Schubertellid Fusulinids, Vladimir I. Davydov
Geosciences Faculty Publications and Presentations
The types of the species belonging to the fusulinid genera Schubertella and Eoschubertella were examined from publications and type collections. Eoschubertella in general possesses all the features of Schubertella and therefore is a junior synonym of the latter. However, the concept of Eoschubertella best describes the genus Schubertina with its type species Schubertina curculi. Schubertina is closely related to the newly established genus Grovesella the concept of which is emended in this paper. Besides Schubertella, Schubertina, and Grovesella, the genera Mesoschubertella, Biwaella are reviewed and three new species, Grovesella nevadensis, Biwaella zhikalyaki, and Biwaella poletaevi, are described. The phylogenetic relationships …