A5001930895- Coastal wetland ecosystem dynamics
- Geology and Paleoclimatology Research
- Marine and coastal ecosystems
- Methane Hydrates and Related Phenomena
- Peatlands and Wetlands Ecology
- Isotope Analysis in Ecology
- Coastal and Marine Dynamics
- Atmospheric and Environmental Gas Dynamics
- Coastal and Marine Management
- Soil and Water Nutrient Dynamics
- Water Quality and Pollution Assessment
- Marine and coastal plant biology
- Analytical chemistry methods development
- Hydrology and Drought Analysis
- Arctic and Antarctic ice dynamics
- Tree-ring climate responses
- Noise Effects and Management
- Soil and Land Suitability Analysis
- Archaeology and Historical Studies
- Impact of Light on Environment and Health
- Climate change and permafrost
- African history and culture analysis
- Rice Cultivation and Yield Improvement
- Tropical and Extratropical Cyclones Research
- Air Quality and Health Impacts
Yale University
2022-2024
Utah State University
2024
University of Florida
2018-2023
Florida State University
2020-2022
National High Magnetic Field Laboratory
2021-2022
Iowa State University
2015-2017
Sonoma Technology (United States)
2006
University of California, Berkeley
2006
The global carbon cycle is strongly modulated by organic (OC) sequestration and decomposition. Whereas OC relatively well constrained, there are few quantitative estimates of its susceptibility to Fjords hot spots sedimentation in marine sediments. Here, we adopt fjords as model systems investigate the reactivity sedimentary assessing distribution activation energy required break bonds. Our results reveal that fjord sediments more thermally labile than sediments, which governed unique...
Abstract Rates of organic carbon (OC) burial in some coastal wetlands appear to be greater recent years than they were the past. Possible explanations include ongoing mineralization older OC or influence an unaccounted‐for artifact methods used measure rates. Alternatively, trend may represent real acceleration burial. We quantified rates mangrove and freshwater marshes southwest Florida through a comparison derived from 210 Pb, 137 Cs, surface marker horizons. Age/depth profiles lignin:...
Abstract Blue carbon habitats like salt marshes and mangroves bury large amounts of with limited area; however, they also are increasingly susceptible to current climate change. Combined effects rising temperatures, decreasing freeze frequencies, increasing sea level rise rates resulting in mangrove replacement along the southern United States. Surface soils analyzed here from wetlands northern Florida Atlantic Gulf Coasts showed higher apparent sedimentation mangrove‐dominated sites...
The use of loss on ignition (LOI) measurements soil organic matter (SOM) to estimate carbon (OC) content is a decades-old practice. While there are limitations and uncertainties this approach, it continues be necessary for many coastal wetlands researchers conservation practitioners without access an elemental analyzer. Multiple measurement, reporting, verification (MRV) standards recognize the need (and uncertainty) using method. However, no framework exists explain substantial differences...
Abstract The BlueFlux field campaign, supported by NASA’s Carbon Monitoring System, will develop prototype blue carbon products to inform coastal management. While has been suggested as a nature-based climate solution (NBS) remove dioxide (CO 2 ) from the atmosphere, these ecosystems also release additional greenhouse gases (GHGs) such methane (CH 4 and are sensitive disturbances including hurricanes sea-level rise. To understand an NBS, is conducting multi-scale measurements of CO CH fluxes...
Blue carbon habitats, such as mangroves and salt marshes, have been recognized burial hotspots; however, methods on measuring blue stocks varied thus leave uncertainty in global stock estimates. This study analyzes northern Florida wetlands along the Atlantic Gulf coasts. Carbon measurements within 1–3m length vibracores yield total core of 9.9–21.5 kgC·m −2 7.7–10.9 for coast cores, respectively. Following recent IPCC guidelines, estimates top meter are 7.0 –8.0 6.1 –8.6 Changes stable...
Loss-on-ignition (LOI) has been widely used to estimate soil organic carbon (OC) content for coastal wetland soils, owing recent interest in 'blue carbon' systems. Comparatively less attention paid nutrient retention, specifically total nitrogen (TN), despite being a historically limited resource that influences C cycling and aquatic ecosystem health. A single conversion equation is available TN from LOI, derived salt marshes. This study investigated the utility of creating equations LOI...
Wetlands are recognized as critical sinks of carbon among terrestrial ecosystems. The demand for atmospheric mitigation, exacerbated by climate change, underscores the importance wetland sequestration. Meanwhile, due to strong affinity mercury (Hg) with organic matter, Hg in atmosphere can also be scavenged and buried wetlands. However, increased anthropogenic activities, such urbanization, disrupt sediment dynamics coastal wetlands, affecting their capacity sequester Hg. To explore...
TAB2-PD-08 Introduction: Naphthalene was recently classified by the International Agency for Research on Cancer as possibly carcinogenic to humans (Group 2B). Relatively few measurements have been made of ambient concentrations, and even fewer concentrations inside homes. Methods: A method collecting naphthalene in air developed using sorbent tubes containing XAD-2 resin separate front (400 mg) back (200 sections, which can be extracted analyzed separately evaluate possible breakthrough...