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Publications for publication type Article and publication subtype Journal Article

• Riverine dissolved organic matter transformations increase with watershed area, water residence time, and Damköhler numbers in nested watersheds, 2024, Biogeochemistry (167) -
• Elevated temperature and nutrients lead to increased N2O emissions from salt marsh soils from cold and warm climates, 2024, Biogeochemistry (167) -
• Unraveling mechnisms underlying effects of wetting–drying cycles on soil respiration in a dryland, 2023, Biogeochemistry (166) -
• Storms and pH of dam releases affect downstream phosphorus cycling in an arid regulated river, 2023, Biogeochemistry (165) -
• Nitrogen-bedrock interactions regulate multi-element nutrient limitation and sustainability in forests, 2023, Biogeochemistry (164) -
• Dissolved organic matter transformations in a freshwater rivermouth, 2023, Biogeochemistry (163) -
• Optical properties of dissolved organic matter in throughfall and stemflow vary across tree species and season in a temperate headwater forest, 2023, Biogeochemistry (164) -
• Anthropogenic landcover impacts fluvial dissolved organic matter composition in the Upper Mississippi River Basin, 2023, Biogeochemistry (164) -
• Mechanisms and magnitude of dissolved silica release from a New England salt marsh, 2022, Biogeochemistry (161) -
• Benthic and planktonic inorganic nutrient processing rates at the interface between a river and lake, 2021, Biogeochemistry (155) -
• Decadal-scale decoupling of soil phosphorus and molybdenum cycles by temperate nitrogen-fixing trees, 2020, Biogeochemistry (149) -
• Experimental shifts of hydrologic residence time in a sandy urban stream sediment-water interface alter nitrate removal and nitrous oxide fluxes, 2020, Biogeochemistry (149) -
• Phosphorus, nitrogen and dissolved organic carbon fluxes from sediments in freshwater rivermouths entering Green Bay (Lake Michigan; USA), 2020, Biogeochemistry (147) -
• Influence of land use and hydrologic variability on seasonal dissolved organic carbon and nitrate export: Insights from a multi-year regional analysis for the northeastern USA, 2020, Biogeochemistry (146) -
• Constraining dissolved organic matter sources and temporal variability in a model sub-Arctic lake, 2019, Biogeochemistry (146) -
• Denitrification in the river network of a mixed land use watershed: Unpacking the complexities, 2019, Biogeochemistry (143) -
• Shining light on the storm: In-stream optics reveal hysteresis of dissolved organic matter character, 2019, Biogeochemistry (143) -
• Water column nutrient processing rates in rivermouths of Green Bay (Lake Michigan), 2019, Biogeochemistry (142) - 1
• River network saturation concept: factors influencing the balance of biogeochemical supply and demand of river networks, 2018, Biogeochemistry (141) - 3
• Watershed ‘chemical cocktails’: forming novel elemental combinations in Anthropocene fresh waters, 2018, Biogeochemistry (141) - 3
• Before the storm: Antecedent conditions as regulators of hydrologic and biogeochemical response to extreme climate events, 2018, Biogeochemistry (141) - 3
• Improving understanding of soil organic matter dynamics by triangulating theories, measurements, and models, 2018, Biogeochemistry (140) - 1
• Beyond clay: Towards an improved set of variables for predicting soil organic matter content, 2018, Biogeochemistry (137) - 3
• Exudation rates and δ13C signatures of tree root soluble organic carbon in a riparian forest, 2018, Biogeochemistry (137) -
• The concurrent use of novel soil surface microclimate measurements to evaluate CO2 pulses in biocrusted interspaces in a cool desert ecosystem, 2017, Biogeochemistry (135) - 3
• Irrigation as a fuel pump to freshwater ecosystems, 2017, Biogeochemistry (136) - 1
• Nitrogenase activity by biological soil crusts in cold sagebrush steppe ecosystems, 2017, Biogeochemistry (134) - 1-2
• Nutrient feedbacks to soil heterotrophic nitrogen fixation in forests, 2017, Biogeochemistry (134) - 1-2
• Temporal variability of foliar nutrients: responses to nitrogen deposition and prescribed fire in a temperate steppe, 2017, Biogeochemistry (133) - 3
• Critical zone properties control the fate of nitrogen during experimental rainfall in montane forests of the Colorado Front Range, 2017, Biogeochemistry (132) - 1
• Regional meteorological drivers and long term trends of winter-spring nitrate dynamics across watersheds in northeastern North America, 2016, Biogeochemistry (130) - 3
• Carbon and energy fluxes in cropland ecosystems: a model-data comparison, 2016, Biogeochemistry (128) - 1
• Low soil moisture during hot periods drives apparent negative temperature sensitivity of soil respiration in a dryland ecosystem: A multi-model comparison, 2016, Biogeochemistry (128) - 1
• The importance of considering shifts in seasonal changes in discharges when predicting future phosphorus loads in streams, 2015, Biogeochemistry (126) - 1-2
• Observations of net soil exchange of CO₂ in a dryland show experimental warming increases carbon losses in biocrust soils, 2015, Biogeochemistry
• Soil organic matter regulates molybdenum storage and mobility in forests, 2015, Biogeochemistry (125) - 2
• Control of nitrogen and phosphorus transport by reservoirs in agricultural landscapes, 2015, Biogeochemistry (124) -
• Origins and bioavailability of dissolved organic matter in groundwater, 2015, Biogeochemistry (122) - 1
• Extracellular enzyme kinetics scale with resource availability, 2014, Biogeochemistry
• Metabolism of a nitrogen-enriched coastal marine lagoon during the summertime, 2014, Biogeochemistry (118) - 1-3
• Particulate organic matter quality influences nitrate retention and denitrification in stream sediments: evidence from a carbon burial experiment, 2014, Biogeochemistry (119) - 1-3
• Combined global change effects on ecosystem processesin nine U.S. topographically complex areas, 2014, Biogeochemistry (119) - 1
• Shifts in controls on the temporal coherence of throughfall chemical flux in Acadia National Park, Maine, USA, 2013, Biogeochemistry (116) - 1
• The effect of increasing salinity and forest mortality on soil nitrogen and phosphorus mineralization in tidal freshwater forested wetlands, 2013, Biogeochemistry (114) - 1-3
• The interactive effects of excess reactive nitrogen and climate change on aquatic ecosystems and water resources of the United States, 2013, Biogeochemistry (114) - 1-3
• Specific ultra-violet absorbance as an indicator measurement of merucry sources in an Adirondack River basin, 2013, Biogeochemistry (113) - 1-3
• A trait-based framework for predicting when and where microbial adaptation to climate change will affect ecosystem functioning, 2012, Biogeochemistry (109) - 1-3
• Isotope geochemistry and fluxes of carbon and organic matter in tropical small mountainous river systems and adjacent coastal waters of the Caribbean, 2012, Biogeochemistry
• Effects of Bromus tectorum invasion on microbial carbon and nitrogen cycling in two adjacent undisturbed arid grassland communities, 2012, Biogeochemistry (111) - 1-3
• Taking the pulse of snowmelt: in situ sensors reveal seasonal, event and diurnal patterns of nitrate and dissolved organic matter variability in an upland forest stream, 2011, Biogeochemistry (108) - 1-3
• Response of lake chemistry to changes in atmospheric deposition and climate in three high-elevation wilderness areas of Colorado, 2011, Biogeochemistry (103) - 1-3
• Are patterns in nutrient limitation belowground consistent with those aboveground: Results from a 4 million year chronosequence, 2011, Biogeochemistry (106) - 3
• Comparisons of watershed sulfur budgets in southeast Canada and northeast US: New approaches and implications, 2011, Biogeochemistry (103) - 1-3
• Summer nitrate uptake and denitrification in an upper Mississippi River backwater lake: The role of rooted aquatic vegetation, 2011, Biogeochemistry (104) - 1-3
• Management intensity alters decomposition via biological pathways, 2011, Biogeochemistry (104) - 1-3
• Measurement of net nitrogen and phosphorus mineralization in wetland soils using a modification of the resin-core technique, 2011, Biogeochemistry (75) - 2
• Identifying sources of dissolved organic carbon in agriculturally dominated rivers using radiocarbon age dating: Sacramento-San Joaquin River Basin, California, 2010, Biogeochemistry (99) - 1
• Chemical and textural controls on phosphorus mobility in drylands of southeastern Utah, 2010, Biogeochemistry (100) -
• Identification of nitrogen sources to four small lakes in the agricultural region of Khorezm, Uzbekistan, 2010, Biogeochemistry (101) - 1-3
• Multi-scale measurements and modeling of denitrification in streams with varying flow and nitrate concentration in the upper Mississippi River basin, USA, 2009, Biogeochemistry (93) - 1
• Dynamic modeling of nitrogen losses in river networks unravels the coupled effects of hydrological and biogeochemical processes, 2009, Biogeochemistry (93) - 1-2
• The regional and global significance of nitrogen removal in lakes and reservoirs, 2009, Biogeochemistry (93) - 1-2
• Nitrification and denitrification in a midwestern stream containing high nitrate: In situ assessment using tracers in dome-shaped incubation chambers, 2009, Biogeochemistry (96) - 1
• Biogeochemical response of organic-rich freshwater marshes in the Louisiana delta plain to chronic river water influx, 2008, Biogeochemistry (90) - 1
• Nitrogen attenuation in the Connecticut River, northeastern USA; a comparison of mass balance and N2 production modeling approaches, 2008, Biogeochemistry (87) - 3
• Influences of calcium availability and tree species on Ca isotope fractionation in soil and vegetation, 2008, Biogeochemistry (88) - 1
• Decomposition of soil organic matter from boreal black spruce forest: Environmental and chemical controls, 2008, Biogeochemistry (87) - 1
• Porewater biogeochemistry and soil metabolism in dwarf red mangrove habitats (Twin Cays, Belize), 2008, Biogeochemistry (87) - 2
• Changes in the character of DOC in streams during storms in two Midwestern watersheds with contrasting land uses, 2008, Biogeochemistry (88) - 3
• Groundwater nutrient concentrations near an incised midwestern stream: Effects of floodplain lithology and land management, 2008, Biogeochemistry (87) - 2
• Factors controlling soil water and stream water aluminum concentrations after a clearcut in a forested watershed with calcium-poor soils, 2007, Biogeochemistry (84) - 3
• Effects of watershed land use on nitrogen concentrations and δ¹⁵ nitrogen in groundwater, 2006, Biogeochemistry (77) - 2
• Impacts of biological soil crust disturbance and composition on C and N loss from water erosion, 2006, Biogeochemistry (77) - 2
• Effect of reduced winter precipitation and increased temperature on watershed solute flux, 1988-2002, Northern Michigan, 2006, Biogeochemistry (77) - 3
• Soluble reactive phosphorus (SRP) transport and retention in tropical, rain forest streams draining a volcanic landscape in Costa Rica: In situ SRP amendment to streams and laboratory studies, 2006, Biogeochemistry (81) - 2
• Soluble reactive phosphorus transport and retention in tropical, rainforest streams draining a volcanic and geothermally active landscape in Costa Rica.: Long-term concentration patterns, pore water environment and response to ENSO events, 2006, Biogeochemistry (81) - 2
• Soil respiration in the cold desert environment of the Colorado Plateau (USA): Abiotic regulators and thresholds, 2006, Biogeochemistry (78) - 3
• Solute sources in stream water during consecutive fall storms in a northern hardwood forest watershed: A combined hydrological, chemical and isotopic approach, 2006, Biogeochemistry (78) - 2
• Denitrification and N2O emission from forested and cultivated alluvial clay soil, 2005, Biogeochemistry (73) - 3
• Effects of a clearcut on the net rates of nitrification and N mineralization in a northern hardwood forest, Catskill Mountains, New York, USA, 2005, Biogeochemistry (72) - 1
• Identifying calcium sources at an acid deposition-impacted spruce forest: A strontium isotope, alkaline earth element multi-tracer approach, 2005, Biogeochemistry (74) - 1
• Sources, bioavailability, and photoreactivity of dissolved organic carbon in the Sacramento-San Joaquin River Delta, 2005, Biogeochemistry (74) - 2
• Tracing sources of streamwater sulfate during snowmelt using S and O isotope ratios of sulfate and 35S activity, 2005, Biogeochemistry (76) - 1
• River nutrient loads and catchment size, 2005, Biogeochemistry (75) - 1
• Dissolved inorganic nitrogen pools and surface flux under different brackish marsh vegetation types, common reed (Phragmites australis) and salt hay (Spartina patens), 2005, Biogeochemistry (75) - 2
• NO gas loss from biologically crusted soils in Canyonlands National Park, Utah, 2005, Biogeochemistry (75) - 3
• Does biofilm contribute to diel cycling of Zn in High Ore Creek, Montana?, 2005, Biogeochemistry (76) - 2
• Processes affecting the response of sulfate concentrations to clearcutting in a northern hardwood forest, Catskill Mountains, New York, U.S.A., 2004, Biogeochemistry (68) - 3
• Characterization and origin of polar dissolved organic matter from the Great Salt Lake, 2004, Biogeochemistry (69) - 1
• The typological approach to submarine groundwater discharge (SGD), 2003, Biogeochemistry (66) - 1-2
• Controls of streamwater dissolved inorganic carbon dynamics in a forested watershed, 2003, Biogeochemistry (62) - 3
• Mechanisms underlying export of N from high-elevation catchments during seasonal transitions, 2003, Biogeochemistry (64) - 1
• Nitrogen vs. phosphorus limitation across an ecotonal gradient in a mangrove forest, 2003, Biogeochemistry (62) - 2
• A comparison of models for estimating the riverine export of nitrogen from large watersheds, 2002, Biogeochemistry (57-58) -
• Allocation of extracellular enzymatic activity in relation to litter composition, N deposition, and mass loss, 2002, Biogeochemistry (60) - 1
• Cycling of beryllium and carbon through hillslope soils in Iowa, 2002, Biogeochemistry (60) - 3
• Chemical and optical changes in freshwater dissolved organic matter exposed to solar radiation, 2001, Biogeochemistry (54) - 3
• Controls on soil respiration: implications for climate change, 2000, Biogeochemistry (48) - 1
• Atmospheric deposition and watershed nitrogen export along an elevational gradient in the Catskill Mountains, New York, 2000, Biogeochemistry (50) - 1
• Modeling the effects of snowpack on heterotrophic respiration across northern temperate and high latitude regions: Comparison with measurements of atmospheric carbon dioxide in high latitudes, 2000, Biogeochemistry (48) - 1
• Dissolved organic nitrogen budgets for upland, forested ecosystems in New England, 2000, Biogeochemistry (49) - 2
• Nitrogen solutes in an Adirondack forested watershed: Importance of dissolved organic nitrogen, 2000, Biogeochemistry (48) - 2
• Landscape patterns of CH4 fluxes in an alpine tundra ecosystem, 1999, Biogeochemistry (45) - 3
• Volcano fixes nitrogen into plant-available forms, 1999, Biogeochemistry (47) - 1
• Inorganic nitrogen and microbial biomass dynamics before and during spring snowmelt, 1998, Biogeochemistry (43) - 1
• Diel variability of mercury phase and species distributions in the Florida Everglades, 1998, Biogeochemistry (40) - 2-3
• Peat characteristics and groundwater geochemistry of calcareous fens in the Minnesota River Basin, U.S.A, 1998, Biogeochemistry (43) - 1
• System controls on the aqueous distribution of mercury in the northern Florida Everglades, 1998, Biogeochemistry (40) - 2-3
• Trophic transfer of methyl mercury in the northern Florida Everglades, 1998, Biogeochemistry (40) - 2-3
• Retention of NO3/- in an upland stream environment: A mass balance approach, 1998, Biogeochemistry (40) - 1
• The hyporheic zone as a source of dissolved organic carbon and carbon gases to a temperate forested stream, 1998, Biogeochemistry (43) - 2
• Assessment of soil calcium status in red spruce forests in the northeastern United States, 1997, Biogeochemistry (38) - 1
• Assessing hydrogeochemical heterogeneity in natural and constructed wetlands, 1997, Biogeochemistry (39) - 3
• Chemical characteristics of particulate, colloidal, and dissolved organic material in Loch Vale Watershed, Rocky Mountain National Park, 1997, Biogeochemistry (36) - 1
• The effects of liming an Adirondack lake watershed on downstream water chemistry: Effects of liming on stream chemistry, 1996, Biogeochemistry (32) - 3
• Effect of whole catchment liming on the episodic acidification of two Adirondack streams, 1996, Biogeochemistry (32) - 3
• Geochemistry of aquatic humic substances in the Lake Fryxell basin, Antarctica, 1996, Biogeochemistry (34) - 3
• Streamflow-induced variations in nitrate flux in tributaries to the Atlantic coastal zone, 1996, Biogeochemistry (33) - 3
• Nitrate reduction in sediments of lowland tropical streams draining swamp forest in Costa Rica: An ecosystem perspective, 1996, Biogeochemistry (33) - 3
• Regional nitrogen budgets and riverine N & P fluxes for the drainages to the North Atlantic Ocean: Natural and human influences, 1996, Biogeochemistry (35) - 1
• Ammonium sorption to channel and riparian sediments: A transient storage pool for dissolved inorganic nitrogen, 1994, Biogeochemistry (26) - 2
• Analysis of nitrogen saturation potential in Rocky Mountain tundra and forest: implications for aquatic systems, 1994, Biogeochemistry (27) - 1
• Hydrological controls on dissolved organic carbon during snowmelt in the Snake River near Montezuma, Colorado, 1994, Biogeochemistry (25) -
• Denitrification measurements in aquatic sediments: A comparison of three methods, 1993, Biogeochemistry (23) -
• The geochemistry of methane in Lake Fryxell, an amictic, permanently ice-covered, antarctic lake, 1993, Biogeochemistry (21) - 2
• Seasonal relationships between planktonic microorganisms and dissolved organic material in an alpine stream, 1993, Biogeochemistry (21) - 1
• Atmospheric deposition and solute export in giant sequoia: Mixed conifer watersheds in the Sierra Nevada, California, 1991, Biogeochemistry (12) - 3
• Sources of dissolved and particulate organic material in Loch Vale Watershed, Rocky Mountain National Park, Colorado, USA, 1991, Biogeochemistry (15) - 2
• Concentration and flux of solutes from snow and forest floor during snowmelt in the West-Central Adirondack region of New York, 1987, Biogeochemistry (3) - 1-3
• Hydrogeologic controls of surface-water chemistry in the Adirondack region of New York State, 1987, Biogeochemistry (3) - 1-3
• Using indirect methods to constrain symbiotic nitrogen fixation rates: A case study from an Amazonian rain forest, , Biogeochemistry (99) - 1