A5018651994- Coastal wetland ecosystem dynamics
- Geology and Paleoclimatology Research
- Coastal and Marine Dynamics
- Peatlands and Wetlands Ecology
- Metallurgy and Material Science
- Methane Hydrates and Related Phenomena
- Water Quality Monitoring and Analysis
- Pesticide and Herbicide Environmental Studies
- Geochemistry and Geologic Mapping
- Plant responses to water stress
- International Environmental Law and Policies
- Spectroscopy and Chemometric Analyses
Florida International University
2021-2024
Indiana University Bloomington
2020-2023
Abstract The long‐term stability of coastal wetlands is determined by interactions among sea level, plant primary production, sediment supply, and wetland vertical accretion. Human activities in watersheds have significantly altered delivery from the landscape to ocean, with declines along much U.S. East Coast. Tidal systems low supply may limited ability keep pace accelerating rates sea‐level rise (SLR). Here, we show that accretion carbon accumulation nine tidal Coast Maine Georgia can be...
Abstract We experimentally increased salinities in a tidal freshwater marsh on the Altamaha River (Georgia, USA) by exposing organic rich soils to 3.5 yr of continuous (press) and episodic (pulse) treatments with dilute seawater simulate effects climate change such as sea level rise drought (pulse). quantified changes root production decomposition, soil elevation, C stocks replicated ( n = 6) 2.5 × m field plots. Elevated salinity had no effect but it caused significant reduction belowground...
Abstract Developing accurate landscape‐scale aboveground biomass (AGB) maps is critical to understanding coastal deltaic wetland resilience, as AGB influences stability and elevation dynamics in herbaceous wetlands. Here we used AVIRIS‐NG imaging spectrometer (or “hyperspectral”) data from NASA's 2021 Delta‐X mission Louisiana map seasonal changes across two basins with contrasting sediment delivery hydrologic regimes: the Atchafalaya (active) Terrebonne (inactive). We assessed impact of...
Abstract A paradigm in carbon cycling science predicts that sea-level rise will enhance accumulation an apparent negative carbon-climate feedback1,2. However, ecosystems exposed to combinations of stressors and subsidies – such as saltwater intrusion may adapt, transition alternative state, or experience a decline functions, storage, thereby altering their response trajectories environmental changes3,4. Climate change is increasing salinity coastal worldwide yet the effects on ecosystem...
Abstract Deltaic wetlands in coastal Louisiana are experiencing widespread changes vegetation dynamics and distribution due to rising sea level long-term modifications hydrology sediment supply. Using field remote sensing data, we investigated how aboveground biomass (AGB) C stocks change response seasonality along salinity soil nutrient gradients across different wetland habitats two basins with active (Atchafalaya - AB) inactive (Terrebonne TB) hydrological regimes. The highest seasonal...