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Carbon cycling within epilithic biofilm communities across a nutrient gradient of headwater streams
Carbon cycling within epilithic biofilm communities across a nutrient gradient headwater streams
2014/4/17
Primary production (PP), nutrient uptake, and carbon (C) cycling within epilithic biofilm communities were assessed in four headwater streams in the Arkansas Ozarks, U.S.A., representing a hundred-fol...
Nitrogen dynamics in grassland streams along a gradient of agricultural development
Nitrogen dynamics grassland streams gradient of agricultural development
2014/4/22
We examined nitrogen (N) uptake in seven grassland streams lying in catchments along a gradient (0-84%) of agricultural land use in New Zealand using a stable isotope (15N) addition of NH4+ to quantif...
Microbial production, utilization, and enzymatic degradation of organic matter in the upper trophogenic layer in the pelagial zone of lakes along a eutrophication gradient
Microbial production utilization enzymatic degradation
2014/4/30
The major aim of this study was to evaluate the relationships between the rates of microbial activities (phytoplankton primary production, bacterial secondary production, bacterial utilization of orga...
Contributions of carbon and nitrogen from the Andes Mountains to the Amazon River: Evidence from an elevational gradient of soils, plants, and river material
carbon and nitrogen Andes Mountains Amazon River elevational gradient of soils plants river material
2014/5/9
We determined the carbon (C) and nitrogen (N) elemental and stable isotopic composition of riverine and terrestrial organic matter (OM), as well as the concentration of dissolved organic C (DOC), δ15N...
Benthic nitrogen fluxes along a depth gradient in a microtidal fjord: The role of denitrification and microphytobenthos
Benthic nitrogen fluxes depth gradient microtidal fjord denitrification microphytobenthos
2014/5/19
In littoral sediments, microphytobenthic (MPB) nitrogen assimilation often exceeds nitrogen removal by denitrification, partly because MPB activity suppresses denitrification. Little is known about th...
