Search Results - "Scanlon, Todd M."

Plant acclimation to long-term high nitrogen deposition in an N-rich tropical forest by Lu, Xiankai, Vitousek, Peter M., Mao, Qinggong, Gilliam, Frank S., Luo, Yiqi, Zhou, Guoyi, Zou, Xiaoming, Bai, Edith, Scanlon, Todd M., Hou, Enqing, Mo, Jiangming

“…Anthropogenic nitrogen (N) deposition has accelerated terrestrial N cycling at regional and global scales, causing nutrient imbalance in many natural and…”
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On soil moisture–vegetation feedbacks and their possible effects on the dynamics of dryland ecosystems by D'Odorico, Paolo, Caylor, Kelly, Okin, Gregory S., Scanlon, Todd M.

“…Soil moisture is the environmental variable synthesizing the effect of climate, soil, and vegetation on the dynamics of water‐limited ecosystems. Unlike…”
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Comparing methods for partitioning a decade of carbon dioxide and water vapor fluxes in a temperate forest by Sulman, Benjamin N., Roman, D. Tyler, Scanlon, Todd M., Wang, Lixin, Novick, Kimberly A.

“…•Multiple methods were used to partition CO2 and H2O fluxes from a temperate forest.•Between methods, daytime summer evaporation was 6–18% of…”
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Partitioning carbon dioxide and water vapor fluxes using correlation analysis by Scanlon, Todd M., Kustas, William P.

“…Partitioning of eddy covariance flux measurements is routinely done to quantify the contributions of separate processes to the overall fluxes. Measurements of…”
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On the correlation structure of water vapor and carbon dioxide in the atmospheric surface layer: A basis for flux partitioning by Scanlon, T.M, Sahu, P

“…High-frequency measurements of water vapor (q) and carbon dioxide (c) concentrations were collected over the course of a transition from dry to wet surface…”
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Stream Runoff and Nitrate Recovery Times After Forest Disturbance in the USA and Japan by Oda, Tomoki, Green, Mark B., Urakawa, Rieko, Scanlon, Todd M., Sebestyen, Stephen D., McGuire, Kevin J., Katsuyama, Masanori, Fukuzawa, Karibu, Adams, Mary B., Ohte, Nobuhito

“…To understand mechanisms of long‐term hydrological and biogeochemical recovery after forest disturbance, it is important to evaluate recovery times (i.e., time…”
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Kalahari Wildfires Drive Continental Post-Fire Brightening in Sub-Saharan Africa by Saha, Michael V., D’Odorico, Paolo, Scanlon, Todd M.

“…Fire can induce long-lived changes to land-surface albedo, an important aspect of the Earth’s energy budget, but the temporal evolution of these anomalies is…”
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Source partitioning of H2O and CO2 fluxes based on high-frequency eddy covariance data: a comparison between study sites by Klosterhalfen, Anne, Alexander Graf, Nicolas Brüggemann, Clemens Drüe, Esser, Odilia, González-Dugo, María P, Günther Heinemann, Cor M J Jacobs, Matthias Mauder, Arnold F Moene, Ney, Patrizia, Pütz, Thomas, Corinna Rebmann, Mario Ramos Rodríguez, Todd M Scanlon, Schmidt, Marius, Rainer Steinbrecher, Christoph K Thomas, Valler, Veronika, Matthias J Zeeman, Vereecken, Harry

“…For an assessment of the roles of soil and vegetation in the climate system, a further understanding of the flux components of H2O and CO2 (e.g.,…”
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High Heterogeneity in Canopy Temperature Among Co‐occurring Tree Species in a Temperate Forest by Yi, Koong, Smith, Jake W., Jablonski, Andrew D., Tatham, Elizabeth A., Scanlon, Todd M., Lerdau, Manuel T., Novick, Kimberly A., Yang, Xi

“…Trees regulate canopy temperature (Tc) via transpiration to maintain an optimal temperature range. In diverse forests such as those of the eastern United…”
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Roles of sulfate adsorption and base cation supply in controlling the chemical response of streams of western Virginia to reduced acid deposition by Robison, Andrew L., Scanlon, Todd M., Cosby, Bernard J., Webb, James R., Galloway, James N.

“…Decreased acid deposition over recent decades has led to reductions in streamwater acidity on a widespread basis throughout the U.S. and Europe. A notable…”
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Nitrate variability in hydrological flow paths for three mid-Appalachian forested watersheds following a large-scale defoliation by Riscassi, Ami L., Scanlon, Todd M.

“…Nitrate (NO3−) leakage from forested watersheds due to disturbance is a well documented but not well understood process that can contribute to the degradation…”
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Managed grasslands: A greenhouse gas sink or source? by Leahy, Paul, Kiely, Ger, Scanlon, Todd M.

“…We describe a unique, one year investigation of CO2 and N2O fluxes over a fertilized grassland in Ireland using two eddy covariance systems. As the global…”
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Dynamic response of grass cover to rainfall variability: implications for the function and persistence of savanna ecosystems by Scanlon, Todd M., Caylor, Kelly K., Manfreda, Salvatore, Levin, Simon A., Rodriguez-Iturbe, Ignacio

“…Savanna grass cover is dynamic and its annual extent resonates with wet season rainfall, as shown by satellite observations of normalized difference vegetation…”
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Factors influencing seasonal chemistry patterns in Virginia mountain streams by Riscassi, Ami L., Scanlon, Todd M., Galloway, James N.

“…The relative influence of seasonal patterns in hydrological flow and seasonal differences in biological and geochemical activity on stream chemistry patterns…”
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[delta]2H isotopic flux partitioning of evapotranspiration over a grass field following a water pulse and subsequent dry down by Good, Stephen P, Soderberg, Keir, Guan, Kaiyu, King, Elizabeth G, Scanlon, Todd M, Caylor, Kelly K

“…The partitioning of surface vapor flux (FET) into evaporation (FE) and transpiration (FT) is theoretically possible because of distinct differences in…”
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Declines in dissolved silica concentrations in western Virginia streams (1988–2003): Gypsy moth defoliation stimulates diatoms? by Grady, Amy E., Scanlon, Todd M., Galloway, James N.

“…Dissolved silica concentrations in western Virginia streams showed a significant bias toward declines (p < 0.0001) over the time period from 1988 to 2003…”
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Albedo changes after fire as an explanation of fire‐induced rainfall suppression by Saha, Michael V., D'Odorico, Paolo, Scanlon, Todd M.

“…Abstract Observational evidence of rainfall suppression by fire has recently been documented in African drylands, but the underlying mechanism remains poorly…”
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Suppression of rainfall by fires in African drylands by Saha, Michael V., Scanlon, Todd M., D'Odorico, Paolo

“…Fire is a widespread agent of disturbance in African drylands, but the impact of fire on local precipitation remains poorly understood and large‐scale…”
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Positive feedbacks promote power-law clustering of Kalahari vegetation by Scanlon, T.M, Caylor, K.K, Levin, S.A, Rodriguez-Iturbe, I

“…The concept of local-scale interactions driving large-scale pattern formation has been supported by numerical simulations, which have demonstrated that simple…”
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More trees less loss: Nitrogen leaching losses decrease with increasing biomass in coffee agroforests by Tully, Katherine L., Lawrence, Deborah, Scanlon, Todd M.

“…► We measured N and P leaching losses in organic and conventional agroforests. ► We determined the effects of human interventions, biology, and chemistry on N…”
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