Halocarbon Emissions from a Degraded Forested Wetland in Coastal South Carolina Impacted by Sea Level Rise

  title={Halocarbon Emissions from a Degraded Forested Wetland in Coastal South Carolina Impacted by Sea Level Rise},
  author={Yi Jiao and Alexander von Ruecker and Malte Julian Deventer and Alex T. Chow and Robert C. Rhew},
  journal={ACS Earth and Space Chemistry},
Tropical- and subtropical-storm surges combined with sea level rise cause saltwater intrusions into low-lying coastal ecosystems along the southeastern coast of the United States, gradually converting freshwater forested wetland into saltmarsh. The transition zone between freshwater and saltwater ecosystems becomes a degraded forested wetland, where the combination of high levels of soil organic matter and elevated concentrations of halide ions creates a dynamic biogeochemical environment that… 
Sea level rise produces abundant organobromines in salt-affected coastal wetlands
doi: 10.7185/geochemlet.1911 Global sea level rise exposes terrestrially derived natural organic matter to elevated salinities, which may alter the complex biogeochemical cycling of halogens in
Impact of bromide exposure on natural organochlorine loss from coastal wetland soils in the Winyah Bay, South Carolina.
This study evaluated how a previously observed phenomenon of bromination of organic matter in coastal soils due to salt-water intrusion impacts the stability and fate of natural organochlorine (org-Cl) in coastal wetland soils and found that introduction of Br- species and their subsequent reactions with organic carbon are associated with an average of 39% loss of org-Cl species from leaf litter and soil.
Sources and sinks of chloromethane in a salt marsh ecosystem: constraints from concentration and stable isotope measurements of laboratory incubation experiments.
Investigation of halophyte plant, Salicornia europaea, and soil samples from a coastal salt marsh site in Sardinia/Italy for their potential to emit and consume CH3Cl and using flux measurements, stable isotope techniques and Arrhenius plots differentiated between biotic and abiotic processes indicates that cycling of CH3 Cl in salt marsh ecosystems is a result of several biotics and abiotics occurring simultaneously in the atmosphere-plant-soil system.
Methyl Chloride and Methyl Bromide Production and Consumption in Coastal Antarctic Tundra Soils Subject to Sea Animal Activities.
Temperature gradient incubations revealed that increasing soil temperature promoted the consumption of CH3Cl and CH3Br in UTS, suggesting that the regional sink may increase with Antarctic warming, depending on changes in soil moisture and abiotic production rates.
Emissions and marine boundary layer concentrations of unregulated chlorocarbons measured at Cape Point, South Africa.
A new time-series of chlorocarbon measurements from Cape Point, South Africa for 2017, which represent the first published high-frequency measurements of these gases from Africa, and finds evidence for both oceanic and terrestrial sources.
Chloroform (CHCl3) Emissions From Coastal Antarctic Tundra
In this study, the first in situ static‐chamber measurements were conducted at coastal Antarctica tundra for CHCl3 fluxes, which showed that CHCl3 was naturally emitted from the Antarctic tundra at
Emission of volatile halogenated organic compounds over various Dead Sea landscapes
Abstract. Volatile halogenated organic compounds (VHOCs), such as methyl halides (CH3X; X is Br, Cl and I) and very short-lived halogenated substances (VSLSs; bromoform – CHBr3, dibromomethane –
Radiotracer evidence that the rhizosphere is a hot-spot for chlorination of soil organic matter
The ubiquitous and extensive natural chlorination of organic matter in soils, leading to levels of chlorinated soil organic matter that often exceed the levels of chloride, remains mysterious in


Natural methyl bromide and methyl chloride emissions from coastal salt marshes
It is shown that CH3Br and CH 3Cl are released to the atmosphere from all vegetation zones of two coastal salt marshes, and there is a strong correlation between the fluxes of CH 3Br and those of CH3Cl, with an average molar flux ratio of roughly 1:20.
Predominance of biotic over abiotic formation of halogenated hydrocarbons in hypersaline sediments in Western Australia.
The experiments demonstrated that the release of organochlorines from Lake Strawbridge sediments was mainly biotic, and there was no stimulation of VOX formation via Fe redox transformations or the formation of reactive Fe species under the authors' experimental conditions.
C 2 -C 10 hydrocarbon emissions from a boreal wetland and forest floor
Abstract. Emissions of various C2-C10 hydrocarbons (VOCs) and halogenated hydrocarbons (VHOCs) from a boreal wetland and a Scots pine forest floor in south-western Finland were measured by the static
Site condition, structure, and growth of baldcypress along tidal/non-tidal salinity gradients
This report documents changes in forest structure and growth potential of dominant trees in salt-impacted tidal and non-tidal baldcypress wetlands of the southeastern United States. We inventoried
Hydrologic regulation of gross methyl chloride and methyl bromide uptake from Alaskan Arctic tundra
The Arctic tundra has been shown to be a potentially significant regional sink for methyl chloride (CH3Cl) and methyl bromide (CH3Br), although prior field studies were spatially and temporally
Arctic and Subarctic Natural Soils Emit Chloroform and Brominated Analogues by Alkaline Hydrolysis of Trihaloacetyl Compounds.
Evidence is presented that chloroform is formed through the hydrolysis of trichloroacetyl compounds in natural, organic-rich soils, and soil may be a previously unrecognized, natural source of brominated haloforms.
A strong source of methyl chloride to the atmosphere from tropical coastal land
There is evidence of significant CH3Cl emission from warm coastal land, particularly from tropical islands, based on a global monitoring study and spot measurements, which show enhancement of atmospheric CH3 Cl in the tropics, a close correlation betweenCH3Cl concentrations and those of biogenic compounds emitted by terrestrial plants, and OH-linked seasonality of CH3cl concentrations in middle and high latitudes.