Search Results - "Webb, Jackie R."

Widespread nitrous oxide undersaturation in farm waterbodies creates an unexpected greenhouse gas sink by Webb, Jackie R., Hayes, Nicole M., Simpson, Gavin L., Leavitt, Peter R., Baulch, Helen M., Finlay, Kerri

“…Nitrogen pollution and global eutrophication are predicted to increase nitrous oxide (N₂O) emissions from freshwater ecosystems. Surface waters within…”
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A review of indirect N2O emission factors from artificial agricultural waters by Webb, Jackie R, Clough, Tim J, Quayle, Wendy C

“…Nitrous oxide (N2O) produced from dissolved nitrogen (N) compounds in agricultural runoff water must be accounted for when reporting N2O budgets from…”
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Hydrological Versus Biological Drivers of Nutrient and Carbon Dioxide Dynamics in a Coastal Lagoon by Maher, Damien T., Call, Mitchell, Macklin, Paul, Webb, Jackie R., Santos, Isaac R.

“…Coastal lagoons are dynamic aquatic systems that are susceptible to eutrophication due to long residence times and high inputs of nutrients. We hypothesise…”
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Carbon outwelling and outgassing vs. burial in an estuarine tidal creek surrounded by mangrove and saltmarsh wetlands by Santos, Isaac R., Maher, Damien T., Larkin, Reece, Webb, Jackie R., Sanders, Christian J.

“…Mangrove- and saltmarsh-dominated estuaries have high rates of organic carbon burial. Here, we estimate soil, pore water, and surface-water carbon fluxes in an…”
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The Importance of Aquatic Carbon Fluxes in Net Ecosystem Carbon Budgets: A Catchment-Scale Review by Webb, Jackie R., Santos, Isaac R., Maher, Damien T., Finlay, Kerri

“…The growing importance of resolving ecosystem carbon budgets has resulted in more studies integrating terrestrial and aquatic carbon fluxes. Although recent…”
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Semi-arid irrigation farm dams are a small source of greenhouse gas emissions by Webb, Jackie R., Quayle, Wendy C., Ballester, Carlos, Wells, Naomi S.

“…Small artificial waterbodies are larger emitters of carbon dioxide (CO 2 ) and methane (CH 4 ) than natural waterbodies. The Intergovernmental Panel on Climate…”
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Poultry litter increased irrigated cotton N uptake with limited improvement on 15N-labelled urea recovery over one season by Webb, Jackie R., Awale, Rakesh, Quayle, Wendy C.

“…Limited field research has investigated the impact of poultry litter (PL) on urea-nitrogen (N) recovery in irrigated cropping systems. This study investigated…”
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Classifying Mixing Regimes in Ponds and Shallow Lakes by Holgerson, Meredith A., Richardson, David C., Roith, Joseph, Bortolotti, Lauren E., Finlay, Kerri, Hornbach, Daniel J., Gurung, Kshitij, Ness, Andrew, Andersen, Mikkel R., Bansal, Sheel, Finlay, Jacques C., Cianci‐Gaskill, Jacob A., Hahn, Shannon, Janke, Benjamin D., McDonald, Cory, Mesman, Jorrit P., North, Rebecca L., Roberts, Cassandra O., Sweetman, Jon N., Webb, Jackie R.

“…Lakes are classified by thermal mixing regimes, with shallow waterbodies historically categorized as continuously mixing systems. Yet, recent studies…”
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Altered groundwater discharge and associated carbon fluxes in a wetland-drained coastal canal by Davis, Kay, Santos, Isaac R., Perkins, Anita K., Webb, Jackie R., Gleeson, Justin

“…Residential canal systems are becoming increasingly popular with the rising demand for absolute coastal waterfront properties. We hypothesize that canals alter…”
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Regulation of carbon dioxide and methane in small agricultural reservoirs: optimizing potential for greenhouse gas uptake by Webb, Jackie R, Leavitt, Peter R, Simpson, Gavin L, Baulch, Helen M, Haig, Heather A, Hodder, Kyle R, Finlay, Kerri

“…Small farm reservoirs are abundant in many agricultural regions across the globe and have the potential to be large contributing sources of carbon dioxide…”
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Constraining the annual groundwater contribution to the water balance of an agricultural floodplain using radon: The importance of floods by Webb, Jackie R., Santos, Isaac R., Robson, Barbara, Macdonald, Ben, Jeffrey, Luke, Maher, Damien T.

“…The water balance of drained floodplains is highly dynamic with complex groundwater–surface water interactions operating over varying spatial and temporal…”
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Carbon cycling and exports over diel and flood-recovery timescales in a subtropical rainforest headwater stream by Looman, Arún, Santos, Isaac R., Tait, Douglas R., Webb, Jackie R., Sullivan, Caroline A., Maher, Damien T.

“…Catchment headwaters comprise the majority of all stream length globally, however, carbon (C) dynamics in these systems remains poorly understood. We combined…”
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Divergent drivers of carbon dioxide and methane dynamics in an agricultural coastal floodplain: Post-flood hydrological and biological drivers by Webb, Jackie R., Santos, Isaac R., Tait, Douglas R., Sippo, James Z., Macdonald, Ben C.T., Robson, Barbara, Maher, Damien T.

“…Many coastal floodplains have been artificially drained for agriculture, altering hydrological connectivity and the delivery of groundwater-derived solutes…”
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Differential Controls of Greenhouse Gas (CO2, CH4, and N2O) Concentrations in Natural and Constructed Agricultural Waterbodies on the Northern Great Plains by Jensen, Sydney A., Webb, Jackie R., Simpson, Gavin L., Baulch, Helen M., Leavitt, Peter R., Finlay, Kerri

“…Inland waters are hotspots of greenhouse gas (GHG) cycling, with small water bodies particularly active in the production and consumption of carbon dioxide…”
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Seasonal variability of CO2, CH4, and N2O content and fluxes in small agricultural reservoirs of the northern Great Plains by Jensen, Sydney A., Webb, Jackie R., Simpson, Gavin L., Baulch, Helen M., Leavitt, Peter R., Finlay, Kerri

“…Inland waters are important global sources, and occasional sinks, of CO 2 , CH 4 , and N 2 O to the atmosphere, but relatively little is known about the…”
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Automated, in situ measurements of dissolved CO2, CH4, and δ13C values using cavity enhanced laser absorption spectrometry: Comparing response times of air-water equilibrators by Webb, Jackie R., Maher, Damien T., Santos, Isaac R.

“…Combining air‐water equilibrators with a field deployable cavity enhanced laser absorption spectrometer (CELAS) can generate precise, high resolution,…”
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Groundwater as a source of dissolved organic matter to coastal waters: Insights from radon and CDOM observations in 12 shallow coastal systems by Webb, Jackie R., Santos, Isaac R., Maher, Damien T., Tait, Douglas R., Cyronak, Tyler, Sadat-Noori, Mahmood, Macklin, Paul, Jeffrey, Luke C.

“…The influence of groundwater and pore-water exchange on dissolved organic matter (DOM) dynamics in coastal surface waters remains poorly understood. Here, we…”
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A review of indirect N 2 O emission factors from artificial agricultural waters by Webb, Jackie R, Clough, Tim J, Quayle, Wendy C

“…Abstract Nitrous oxide (N 2 O) produced from dissolved nitrogen (N) compounds in agricultural runoff water must be accounted for when reporting N 2 O budgets…”
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Soil greenhouse gas emissions under enhanced efficiency and urea nitrogen fertilizer from Australian irrigated aerobic rice production by Webb, Jackie R., Champness, Matt, Hornbuckle, John, Quayle, Wendy C.

“…Abstract Aerobic rice production offers a promising solution to improve water use efficiency and reduce methane (CH 4 ) emissions by minimizing water…”
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Terrestrial versus aquatic carbon fluxes in a subtropical agricultural floodplain over an annual cycle by Webb, Jackie R., Santos, Isaac R., Maher, Damien T., Macdonald, Ben, Robson, Barbara, Isaac, Peter, McHugh, Ian

“…[Display omitted] •Total aquatic carbon flux of ∼40 g C m−2 yr−1 was a minor component of the NECB.•The net ecosystem exchange of -900 g C m−2 yr−1 was in the…”
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