Explanipedia

Dissolved organic matter composition differs across water types in Mid-Atlantic and Great Lakes coastal regions Open

Alan Roebuck, Allison Myers‐Pigg, Peter Regier, Nicholas Ward, Matthew J. Cooper , et al. · 2025

Dissolved organic matter (DOM) in coastal surface waters influences local water quality and is an important component of biogeochemical cycling in coastal systems. Many studies have highlighted transformations of DOM along longitudinal riv…

Transition Zones at the Changing Coastal Terrestrial‐Aquatic Interface Open

Kaizad Patel, Avni Malhotra, Cooper G. Norris, Sophia McKever, Dana Fields , et al. · 2025

Coastal soils are a significant but highly uncertain component of global biogeochemical cycles. These systems experience spatial and temporal variability in biogeochemical processes, driven by marsh‐to‐upland gradients and hydrological flu…

Multiple Sources of Riparian Wetland Suspended Solids during Episodic Rain Events: Influence on Uranium Transport Open

Daniel I. Kaplan, Karah Greene, Wei Xing, Brian A. Powell, Maxim I. Boyanov , et al. · 2025

Suspended solids can be the primary vector for transporting contaminants in streams. The objective of this study was to determine whether changes in the properties of suspended solids during rain events impacted contaminant transport. Stre…

A Synoptic System for Capturing Ecosystem Control Points Across Terrestrial‐Aquatic Interfaces Open

Nicholas Ward, J. Patrick Megonigal, Michael Weintraub, Peter Regier, Stephanie Pennington , et al. · 2025

Interconnected landscape features such as terrestrial‐aquatic interfaces play an outsized role in biogeochemical cycles as ecosystem control points, but it is notoriously challenging to characterize these. Here, we document a synoptic sens…

Modeling the mechanisms of coastal vegetation dynamics and ecosystem responses to changing water levels Open

Junyan Ding, Nate G. McDowell, Vanessa Bailey, Nathan Conroy, Donnie Day , et al. · 2025

Coastal forests are increasingly experiencing mortality due to inundation by fresh- and seawater, leading to their replacement by marshes. These shifts alter vegetation composition, biogeochemical cycling, carbon storage, and hydrology. Us…

Effects of soluble electron shuttles on microbial iron reduction and methanogenesis Open

Bhim Sen Thapa, Theodore M. Flynn, Zena D. Jensvold, Kenneth Kemner, Margaret Sladek , et al. · 2025

In many aquatic and terrestrial ecosystems, iron (Fe) reduction by microorganisms is a key part of biogeochemical cycling and energy flux. The presence of redox-active electron shuttles in the environment potentially enables a phylogenetic…

Supplementary material to "Modeling the mechanisms of coastal vegetation dynamics and ecosystem responses to changing water levels" Open

Junyan Ding, Nate G. McDowell, Vanessa Bailey, Nathan Conroy, Donnie Day , et al. · 2025

Effect of CO2 Concentration on the Microbial Activity of Orenia metallireducens (Strain Z6) in Surface Inert Materials Open

Shuyi Li, Wentao Song, Juan Liu, Maxim I. Boyanov, Edward J. O’Loughlin , et al. · 2025

Carbon dioxide (CO2) sequestration has garnered widespread attention as a key strategy for mitigating CO2 emissions and combating the greenhouse effect. However, the mechanisms underlying the interactions between CO2, widespread siliceous …

Effects of Soluble Electron Shuttles on Microbial Iron Reduction and Methanogenesis Open

Bhim Sen Thapa, Theodore M. Flynn, Zena D. Jensvold, Kenneth Kemner, Margaret Sladek , et al. · 2024

In many aquatic and terrestrial ecosystems, iron (Fe) reduction by microorganisms is a key part of biogeochemical cycling and energy flux. The presence of redox active electron shuttles in the environment potentially enables a phylogenetic…

Short-Term Groundwater Level Fluctuations Drive Subsurface Redox Variability Open

Fausto Machado‐Silva, Michael Weintraub, Nicholas Ward, Kennedy O. Doro, Peter Regier , et al. · 2024

As global change processes modify the extent and functions of terrestrial-aquatic interfaces, the variability of critical and dynamic transitional zones between wetlands and uplands increases. However, it is still unclear how fluctuating w…

Reduction of Hg<sup>II</sup>by Mn<sup>II</sup> Open

Bhoopesh Mishra, Maxim I. Boyanov, Kenneth Kemner, Edward J. O’Loughlin · 2024

The reduction of Hg^II to Hg^I or Hg⁰ can lead to significant changes in Hg toxicity and mobility in the environment. Photochemical reduction is the primary process for the reduction of Hg^II to Hg<…

Uranium Biogeochemistry in the Rhizosphere of a Contaminated Wetland Open

Daniel I. Kaplan, Maxim I. Boyanov, Nathaniel A. Losey, Peng Lin, Chen Xu , et al. · 2024

The objective of this study was to determine if U sediment concentrations in a U-contaminated wetland located within the Savannah River Site, South Carolina, were greater in the rhizosphere than in the nonrhizosphere. U concentrations were…

Uranium and Nickel Partitioning in a Contaminated Riparian Wetland Open

Peng Lin, Maxim I. Boyanov, Edward J. O’Loughlin, Wei Xing, Kenneth Kemner , et al. · 2024

Uranium (U) and nickel (Ni) released 50 years ago have been immobilized in the Tims Branch wetlands located on the Savannah River Site in the United States. Sediments were collected from seven locations to identify the factors responsible …

Time to anoxia: Observations and predictions of oxygen drawdown following coastal flood events Open

Kaizad Patel, Kenton Rod, Jianqiu Zheng, Peter Regier, Fausto Machado‐Silva , et al. · 2024

Time to Anoxia: Oxygen Consumption in Soils Varies Across a Coastal Gradient Open

Kaizad Patel, Kenton Rod, Jianqiu Zheng, Peter Regier, Fausto Machado‐Silva , et al. · 2024

The coastal terrestrial-aquatic interface (TAI) is a highly dynamic system characterized by strong physical, chemical, and biological gradients. In particular, shifting soil redox conditions, due in part to dynamic water conditions, is a s…

Interactions of Perrhenate (Re(VII)O4−) with Fe(II)-Bearing Minerals Open

Anthony W. N. Kilber, Maxim I. Boyanov, Kenneth Kemner, Edward J. O’Loughlin · 2024

Rhenium (Re) is an extremely rare element, with a crustal abundance of approximately 0.4 parts per billion (ppb) and a sea water concentration of 8.3 parts per trillion (ppt). However, Re concentrations in anoxic marine sediments range fro…

Data for: Time to anoxia: Observations and predictions of oxygen drawdown following coastal flood events Open

Kaizad Patel, Kenton Rod, Jianqiu Zheng, Peter Regier, Fausto Machado‐Silva , et al. · 2024

This dataset contains data and code associated with the paper Patel et al. "Time to anoxia: Observations and predictions of oxygen drawdown following coastal flood events".The coastal terrestrial-aquatic interface (TAI) is a highly dynamic…

Data for: A Synoptic System for Capturing Ecosystem Control Points Across Terrestrial-Aquatic Interfaces Open

Nicholas Ward, Roy Rich, Stephanie Pennington, Peter Regier, Roberta Bittencourt Peixoto , et al. · 2024

The investigation of how climate change and water level fluctuations impact variable and interconnected ecosystems, like the interfaces between terrestrial and aquatic environments, requires the collection and integration of many data type…

Reaction pathways and Sb(III) minerals formation during the reduction of Sb(V) by Rhodoferax ferrireducens strain YZ-1 Open

Yidan Zhang, Maxim I. Boyanov, Edward J. O’Loughlin, Kenneth Kemner, Robert A. Sanford , et al. · 2023

Biogeochemistry of upland to wetland soils, sediments, and surface waters across Mid-Atlantic and Great Lakes coastal interfaces Open

Allison Myers‐Pigg, Stephanie Pennington, Khadijah Homolka, Allison M. Lewis, Opal Otenburg , et al. · 2023

Tellurium Goes for a Ride on the “Ferrous” Wheel: Interactions of Te(VI) and Te(IV) with Fe(II)-Bearing Minerals Open

Edward J. O’Loughlin, Maxim I. Boyanov, Kenneth Kemner · 2023

Compared to more abundant metalloids (e.g., As, Se, and Sb), little is known regarding the biogeochemistry of tellurium (Te), a critical metal whose use in CdTe photovoltaic solar cells is driving increasing global demand for this element.…

Groundwater redox dynamics across the terrestrial-aquatic interface of Lake Erie coastal ecosystems Open

Fausto Machado‐Silva, Michael Weintraub, Nicholas Ward, Kennedy O. Doro, Peter Regier , et al. · 2023

Groundwater biogeochemistry in coastal areas is spatially and temporally dynamic because fluctuations in groundwater level may cause alternate redox between distinct hydrological conditions. Recent studies have proposed connections between…

Natural attenuation of uranium in a fluvial Wetland: Importance of hydrology and speciation Open

Daniel I. Kaplan, Ronald J. Smith, Connor Parker, Kimberly A. Roberts, P. Hazenberg , et al. · 2023

Biogeochemistry of soils, sediments, and surface waters across the upland to wetland gradient of coastal interfaces Open

Allison Myers‐Pigg, Stephanie Pennington, Khadijah Homolka, Allison Lewis, Opal Otenburg , et al. · 2023

Transferable and mechanistic understanding of cross-scale interactions is necessary to predict how coastal systems respond to global change. Cohesive datasets across geographically distributed sites can enable a mechanistic understanding o…

Data for EMSL Project 60602 from September 2023 Open