Kevin D Kroeger, PhD (Former Employee)
Science and Products
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Temperature response of soil respiration largely unaltered with experimental warming Temperature response of soil respiration largely unaltered with experimental warming
The respiratory release of carbon dioxide (CO2) from soil is a major yet poorly understood flux in the global carbon cycle. Climatic warming is hypothesized to increase rates of soil respiration, potentially fueling further increases in global temperatures. However, despite considerable scientific attention in recent decades, the overall response of soil respiration to anticipated...
Authors
Joanna C. Carey, Jianwu Tang, Pamela H. Templer, Kevin D. Kroeger, Thomas W. Crowther, Andrew J. Burton, Jeffrey S. Dukes, Bridget Emmett, Serita D. Frey, Mary A. Heskel, Lifen Jiang, Megan B. Machmuller, Jacqueline Mohan, Anne Marie Panetta, Peter B. Reich, Sabine Reinsch, Xin Wang, Steven D. Allison, Chris Bamminger, Scott D. Bridgham, Scott L. Collins, Giovanbattista de Dato, William C. Eddy, Brian J. Enquist, Marc Estiarte, John Harte, Amanda Henderson, Bart R. Johnson, Klaus Steenberg Larsen, Yiqi Luo, Sven Marhan, Jerry M. Melillo, Josep Penuelas, Laurel Pfeifer-Meister, Christian Poll, Edward B. Rastetter, Andrew B. Reinmann, Lorien L. Reynolds, Inger K. Schmidt, Gaius R. Shaver, Aaron L. Strong, Vidya Suseela, Albert Tietema
Carbon dioxide fluxes reflect plant zonation and belowground biomass in a coastal marsh Carbon dioxide fluxes reflect plant zonation and belowground biomass in a coastal marsh
Coastal wetlands are major global carbon sinks; however, they are heterogeneous and dynamic ecosystems. To characterize spatial and temporal variability in a New England salt marsh, greenhouse gas (GHG) fluxes were compared among major plant‐defined zones during growing seasons. Carbon dioxide (CO2) and methane (CH4) fluxes were compared in two mensurative experiments during summer...
Authors
Serena Moseman-Valtierra, Omar I. Abdul-Aziz, Jianwu Tang, Khandker S. Ishtiaq, Kate Morkeski, Jordan Mora, Ryan K. Quinn, Rose M. Martin, Katharine Egan, Elizabeth Q. Brannon, Joanna C. Carey, Kevin D. Kroeger
Observations of nearshore groundwater discharge: Kahekili Beach Park submarine springs, Maui, Hawaii Observations of nearshore groundwater discharge: Kahekili Beach Park submarine springs, Maui, Hawaii
Study region The study region encompasses the nearshore, coastal waters off west Maui, Hawaii. Here abundant groundwater—that carries with it a strong land-based fingerprint—discharges into the coastal waters and over a coral reef.Study focus Coastal groundwater discharge is a ubiquitous hydrologic feature that has been shown to impact nearshore ecosystems and material budgets. A unique...
Authors
Peter W. Swarzenski, H. Dulai, K.D. Kroeger, Christopher G. Smith, N. Dimova, C. D. Storlazzi, N.G. Prouty, S. B. Gingerich, C. R. Glenn
Intertidal salt marshes as an important source of inorganic carbon to the coastal ocean Intertidal salt marshes as an important source of inorganic carbon to the coastal ocean
Dynamic tidal export of dissolved inorganic carbon (DIC) to the coastal ocean from highly productive intertidal marshes and its effects on seawater carbonate chemistry are thoroughly evaluated. The study uses a comprehensive approach by combining tidal water sampling of CO2parameters across seasons, continuous in situ measurements of biogeochemically-relevant parameters and water fluxes...
Authors
Zhaohui Aleck Wang, Kevin D. Kroeger, Neil K. Ganju, Meagan Gonneea Eagle, Sophie N. Chu
Significance of groundwater discharge along the coast of Poland as a source of dissolved metals to the southern Baltic Sea Significance of groundwater discharge along the coast of Poland as a source of dissolved metals to the southern Baltic Sea
Fluxes of dissolved trace metals (Cd, Co, Cr, Cu, Mn, Ni, Pb, and Zn) via groundwater discharge along the southern Baltic Sea have been assessed for the first time. Dissolved metal concentrations in groundwater samples were less variable than in seawater and were generally one or two orders of magnitude higher: Cd (2.1–2.8 nmol L− 1), Co (8.70–8.76 nmol L− 1), Cr (18.1–18.5 nmol L− 1)...
Authors
Beata Szymczycha, Kevin D. Kroeger, Janusz Pempkowiak
Hydrogeologic controls on groundwater discharge and nitrogen loads in a coastal watershed Hydrogeologic controls on groundwater discharge and nitrogen loads in a coastal watershed
Submarine groundwater discharge (SGD) is a small portion of the global water budget, but a potentially large contributor to coastal nutrient budgets due to high concentrations relative to stream discharge. A numerical groundwater flow model of the Inland Bays Watershed, Delaware, USA, was developed to identify the primary hydrogeologic factors that affect groundwater discharge rates and...
Authors
Chrtopher J. Russoniello, Leonard F. Konikow, Kevin D. Kroeger, Cristina Fernandez, A. Scott Andres, Holly A. Michael
Science and Products
Filter Total Items: 23
No Result Found
Filter Total Items: 71
Temperature response of soil respiration largely unaltered with experimental warming Temperature response of soil respiration largely unaltered with experimental warming
The respiratory release of carbon dioxide (CO2) from soil is a major yet poorly understood flux in the global carbon cycle. Climatic warming is hypothesized to increase rates of soil respiration, potentially fueling further increases in global temperatures. However, despite considerable scientific attention in recent decades, the overall response of soil respiration to anticipated...
Authors
Joanna C. Carey, Jianwu Tang, Pamela H. Templer, Kevin D. Kroeger, Thomas W. Crowther, Andrew J. Burton, Jeffrey S. Dukes, Bridget Emmett, Serita D. Frey, Mary A. Heskel, Lifen Jiang, Megan B. Machmuller, Jacqueline Mohan, Anne Marie Panetta, Peter B. Reich, Sabine Reinsch, Xin Wang, Steven D. Allison, Chris Bamminger, Scott D. Bridgham, Scott L. Collins, Giovanbattista de Dato, William C. Eddy, Brian J. Enquist, Marc Estiarte, John Harte, Amanda Henderson, Bart R. Johnson, Klaus Steenberg Larsen, Yiqi Luo, Sven Marhan, Jerry M. Melillo, Josep Penuelas, Laurel Pfeifer-Meister, Christian Poll, Edward B. Rastetter, Andrew B. Reinmann, Lorien L. Reynolds, Inger K. Schmidt, Gaius R. Shaver, Aaron L. Strong, Vidya Suseela, Albert Tietema
Carbon dioxide fluxes reflect plant zonation and belowground biomass in a coastal marsh Carbon dioxide fluxes reflect plant zonation and belowground biomass in a coastal marsh
Coastal wetlands are major global carbon sinks; however, they are heterogeneous and dynamic ecosystems. To characterize spatial and temporal variability in a New England salt marsh, greenhouse gas (GHG) fluxes were compared among major plant‐defined zones during growing seasons. Carbon dioxide (CO2) and methane (CH4) fluxes were compared in two mensurative experiments during summer...
Authors
Serena Moseman-Valtierra, Omar I. Abdul-Aziz, Jianwu Tang, Khandker S. Ishtiaq, Kate Morkeski, Jordan Mora, Ryan K. Quinn, Rose M. Martin, Katharine Egan, Elizabeth Q. Brannon, Joanna C. Carey, Kevin D. Kroeger
Observations of nearshore groundwater discharge: Kahekili Beach Park submarine springs, Maui, Hawaii Observations of nearshore groundwater discharge: Kahekili Beach Park submarine springs, Maui, Hawaii
Study region The study region encompasses the nearshore, coastal waters off west Maui, Hawaii. Here abundant groundwater—that carries with it a strong land-based fingerprint—discharges into the coastal waters and over a coral reef.Study focus Coastal groundwater discharge is a ubiquitous hydrologic feature that has been shown to impact nearshore ecosystems and material budgets. A unique...
Authors
Peter W. Swarzenski, H. Dulai, K.D. Kroeger, Christopher G. Smith, N. Dimova, C. D. Storlazzi, N.G. Prouty, S. B. Gingerich, C. R. Glenn
Intertidal salt marshes as an important source of inorganic carbon to the coastal ocean Intertidal salt marshes as an important source of inorganic carbon to the coastal ocean
Dynamic tidal export of dissolved inorganic carbon (DIC) to the coastal ocean from highly productive intertidal marshes and its effects on seawater carbonate chemistry are thoroughly evaluated. The study uses a comprehensive approach by combining tidal water sampling of CO2parameters across seasons, continuous in situ measurements of biogeochemically-relevant parameters and water fluxes...
Authors
Zhaohui Aleck Wang, Kevin D. Kroeger, Neil K. Ganju, Meagan Gonneea Eagle, Sophie N. Chu
Significance of groundwater discharge along the coast of Poland as a source of dissolved metals to the southern Baltic Sea Significance of groundwater discharge along the coast of Poland as a source of dissolved metals to the southern Baltic Sea
Fluxes of dissolved trace metals (Cd, Co, Cr, Cu, Mn, Ni, Pb, and Zn) via groundwater discharge along the southern Baltic Sea have been assessed for the first time. Dissolved metal concentrations in groundwater samples were less variable than in seawater and were generally one or two orders of magnitude higher: Cd (2.1–2.8 nmol L− 1), Co (8.70–8.76 nmol L− 1), Cr (18.1–18.5 nmol L− 1)...
Authors
Beata Szymczycha, Kevin D. Kroeger, Janusz Pempkowiak
Hydrogeologic controls on groundwater discharge and nitrogen loads in a coastal watershed Hydrogeologic controls on groundwater discharge and nitrogen loads in a coastal watershed
Submarine groundwater discharge (SGD) is a small portion of the global water budget, but a potentially large contributor to coastal nutrient budgets due to high concentrations relative to stream discharge. A numerical groundwater flow model of the Inland Bays Watershed, Delaware, USA, was developed to identify the primary hydrogeologic factors that affect groundwater discharge rates and...
Authors
Chrtopher J. Russoniello, Leonard F. Konikow, Kevin D. Kroeger, Cristina Fernandez, A. Scott Andres, Holly A. Michael
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