Fellow of the Geological Society of America
His main research concerns Nitrate, Denitrification, Hydrology, Environmental chemistry and Analytical chemistry. John Karl Böhlke has included themes like Isotope analysis, Nitrogen cycle and Isotopes of oxygen in his Nitrate study. His work on Human impact on the nitrogen cycle is typically connected to TRACER as part of general Denitrification study, connecting several disciplines of science.
His studies in Hydrology integrate themes in fields like δ18O and δ34S. His Environmental chemistry study incorporates themes from Reagent, Isotopes of nitrogen, Denitrifying bacteria, Radiochemistry and Seawater. In the field of Groundwater, his study on Groundwater recharge and Groundwater discharge overlaps with subjects such as Flux.
Hydrology, Groundwater, Environmental chemistry, Nitrate and Aquifer are his primary areas of study. His Hydrology research focuses on Oceanography and how it connects with Cape. John Karl Böhlke is interested in Groundwater recharge, which is a branch of Groundwater.
The Environmental chemistry study combines topics in areas such as Isotopes of nitrogen, Nitrification, Isotope analysis, Fractionation and Nitrite. His studies deal with areas such as Nitrous oxide, Biogeochemical cycle, Anoxic waters, Denitrification and Isotopes of oxygen as well as Nitrate. His Denitrifying bacteria study in the realm of Denitrification interacts with subjects such as TRACER.
His primary scientific interests are in Nitrate, Environmental chemistry, Groundwater, Hydrology and δ18O. His study in Nitrate is interdisciplinary in nature, drawing from both Denitrification, Mesocosm, Aquifer and Spatial variability. His Environmental chemistry study which covers Water column that intersects with Mineralization.
The various areas that he examines in his Groundwater study include Arid, Cape, Nitrogen transport and Estuary. Many of his research projects under Hydrology are closely connected to Global change and Biogeosciences with Global change and Biogeosciences, tying the diverse disciplines of science together. He interconnects Isotopes of nitrogen, Isotopes of oxygen, Isotopic signature and Isotopes of chlorine in the investigation of issues within δ18O.
John Karl Böhlke mainly focuses on Environmental chemistry, Nitrate, Mass spectrometry, Analytical chemistry and Brackish water. In his study, which falls under the umbrella issue of Environmental chemistry, Nitrification is strongly linked to Nitrite. His Nitrate study frequently intersects with other fields, such as Denitrification.
His Denitrification research includes themes of Soil water and Wetland. His Mass spectrometry study deals with Isotopic composition intersecting with Nitrous oxide. As part of the same scientific family, John Karl Böhlke usually focuses on Brackish water, concentrating on Water resource management and intersecting with Hydrology.
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A Bacterial Method for the Nitrogen Isotopic Analysis of Nitrate in Seawater and Freshwater
D.M. Sigman;K.L. Casciotti;M. Andreani;C. Barford.
Analytical Chemistry (2001)
Denitrification across landscapes and waterscapes: a synthesis.
Sybil P. Seitzinger;John A. Harrison;John K. Bohlke;A. F. Bouwman.
Ecological Applications (2006)
Measurement of the Oxygen Isotopic Composition of Nitrate in Seawater and Freshwater Using the Denitrifier Method
K L Casciotti;D M Sigman;M Galanter Hastings;J K Böhlke.
Analytical Chemistry (2002)
Atomic weights of the elements. Review 2000 (IUPAC Technical Report)
John R. de Laeter;John Karl Böhlke;P. De Bièvre;H. Hidaka.
Pure and Applied Chemistry (2009)
METHODS FOR MEASURING DENITRIFICATION: DIVERSE APPROACHES TO A DIFFICULT PROBLEM
Peter M. Groffman;Mark A. Altabet;John K. Bohlke;Klaus Butterbach-Bahl.
Ecological Applications (2006)
Combined Use of Groundwater Dating, Chemical, and Isotopic Analyses to Resolve the History and Fate of Nitrate Contamination in Two Agricultural Watersheds, Atlantic Coastal Plain, Maryland
J. K. Böhlke;J. M. Denver.
Water Resources Research (1995)
Isotope-abundance variations of selected elements (IUPAC Technical Report)
Tyler B. Coplen;John Karl Böhlke;P. De Bièvre;T. Ding.
Pure and Applied Chemistry (2002)
Atomic weights of the elements 2011 (IUPAC Technical Report)
Michael E. Wieser;Norman Holden;Tyler B. Coplen;John K. Böhlke.
Pure and Applied Chemistry (2013)
Oxygen isotopes in nitrate: new reference materials for 18O:17O:16O measurements and observations on nitrate-water equilibration.
J. K. Böhlke;S. J. Mroczkowski;T. B. Coplen.
Rapid Communications in Mass Spectrometry (2003)
Methane-hydrogen gas seeps, zambales ophiolite, philippines: deep or shallow origin?
T.A. Abrajano;N.C. Sturchio;J.K. Bohlke;G.L. Lyon.
Chemical Geology (1988)
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