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Modeling soil pore water salinity response to drought in tidal freshwater forested wetlands Model generated soil pore water salinity (psu) values under scenarios of drought and normal conditions at Tidal Freshwater Forested Wetlands (TFFW) sites along the Waccamaw River and Savannah River in the Southeastern United States. Categories: Data; Tags: Coastal environment, Droughts, Ecology, Evapotranspiration, Forested wetlands, All tags... Georgia, Hydrogeology, ISO 19115 Topic Category, Saline intrusion, Savannah River, Soil Sciences, Soil salinity, South Carolina, USA, USGS Science Data Catalog (SDC), Waccamaw River, Fewer tags Above- and belowground biomass production, decomposition, and wetland elevation change in transitional coastal wetland communities exposed to elevated CO2 and sediment deposition: a mesocosm study from 2012 to 2014 This data release includes belowground primary productivity, decomposition, and surface elevation change data from a two-year mesocosm experiment from 2012 to 2014. We conducted experimental greenhouse manipulations of atmospheric CO2 (double ambient CO2) and sediment deposition to simulate a land-falling hurricane under future climate conditions. Experimental greenhouse conditions mimicked a land-falling hurricane under projected future climate conditions by comparing atmospheric to double ambient CO2 and sediment deposition in four communities along a coastal wetland landscape gradient in Louisiana, USA (tidal freshwater forested wetland, forest/marsh mix, marsh, and mudflat). Categories: Data; Tags: Big Branch Marsh National Wildlife Refuge, Climate change, Climatology, Coastal wetlands, Ecology, All tags... Elevated CO2, Elevation capital, Land Use Change, Louisiana, Mesocosm experiment, Multiple stressors, Possible climate futures, Sediment deposition, Soil Sciences, USGS Science Data Catalog (SDC), United States, Wetland elevation change, biota, effects of climate change, hurricanes, wetland ecosystems, wetland functions, Fewer tags Point data Macroclimatic drivers, such as temperature and rainfall regimes, greatly influence ecosystem structure and function in tidal saline wetlands. Understanding the ecological influence of macroclimatic drivers is important because it provides a foundation for anticipating the effects of climate change. Tidal saline wetlands include mangrove forests, salt marshes, and salt flats, which occupy similar geomorphic settings but different climatic regimes. However, most global- or regional-scale analyses have treated these wetlands as independent systems. Here we used climate and literature-derived ecological data from all three systems, collected across targeted regional-scale macroclimatic gradients, to test hypotheses... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: None, above-ground biomass, canopy height, climate change, climate gradients, All tags... climatic drivers, climatic thresholds, ecological thresholds, environment, mangrove forests, productivity, rainfall, salt flats, salt marshes, soil carbon, temperature, Fewer tags Salt marsh carbon dynamics under altered hydrologic regimes and elevated CO2 conditions, Louisiana, USA (2014-2015) Plant-mediated processes are often important in determining carbon cycling and storage in ecosystems. With climate-induced changes in the environment, plant-associated processes may also shift. Salt marshes in particular are useful systems to investigate plant-mediated carbon cycling, as these systems experience both sea-level rise and increased carbon dioxide concentrations due to climate change, in addition to stochastically experiencing extreme drought and flood conditions. We measured biomass, soil, and gas carbon pools and the fluxes between those pools using a mesocosm approach in a salt marsh system, to investigate the response of plant-mediated carbon cycling to near-term climate change. Categories: Data; Tags: Ecology, Louisiana, USGS Science Data Catalog (SDC), aboveground production, belowground production, All tags... biota, carbon cycling, carbon dioxide, climate change, coastal wetland, decomposition, sea-level rise, soil carbon, Fewer tags Rapid peat development beneath maturing mangrove forests: quantifying ecosystem changes along a 25-year chronosequence of created coastal wetlands Mangrove forests are among the world’s most productive and carbon-rich ecosystems. In addition to providing important fish and wildlife habitat and supporting coastal food webs, these coastal wetlands provide many ecosystem goods and services including clean water, stable coastlines, food, recreational opportunities, and stored carbon. Despite a growing understanding of the factors controlling mangrove soil carbon stocks, there is a pressing need to advance understanding of the pace of peat development beneath maturing mangroves - especially in created and restored mangroves, which are often intended to compensate for ecosystem functions lost during mangrove conversion to other land uses. To better quantify the... Categories: Data; Tags: Ecology, Florida, Spartina alterniflora, Tampa Bay, USGS Science Data Catalog (SDC), All tags... carbon cycling, coastal ecosystems, long-term ecological monitoring, mangrove, Fewer tags Modeling impacts of drought-induced salinity intrusion on carbon fluxes and storage in tidal freshwater forested wetlands A biogeochemistry model was developed to examine plant gross primary productivity (GPP), net primary productivity (NPP), plant respiration, soil respiration, soil organic carbon sequestration rate and storage under scenarios of drought and normal conditions at Tidal Freshwater Forested Wetlands (TFFW) sites along the Waccamaw River and Savannah River in the Southeastern United States. Categories: Data; Tags: Chatham, Ecology, Effingham, Georgetown, Georgia, All tags... Jasper, Savannah National Wildlife Refuge, South Carolina, USGS Science Data Catalog (SDC), United States, Waccamaw National Wildlife Refuge, coastal wetlands, wetland ecosystems, Fewer tags Cell data Macroclimatic drivers, such as temperature and rainfall regimes, greatly influence ecosystem structure and function in tidal saline wetlands. Understanding the ecological influence of macroclimatic drivers is important because it provides a foundation for anticipating the effects of climate change. Tidal saline wetlands include mangrove forests, salt marshes, and salt flats, which occupy similar geomorphic settings but different climatic regimes. However, most global- or regional-scale analyses have treated these wetlands as independent systems. Here we used climate and literature-derived ecological data from all three systems, collected across targeted regional-scale macroclimatic gradients, to test hypotheses... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Climate change, None, above-ground biomass, canopy height, climate gradients, All tags... climatic drivers, climatic thresholds, ecological thresholds, environment, mangrove forests, productivity, rainfall, salt flats, salt marshes, soil carbon, temperature, Fewer tags Organic matter decomposition along coastal wetland landscape gradient from tidal freshwater forested wetland to oligohaline marsh in Southeastern U.S.A. (2010-2011) Coastal wetlands significantly contribute to global carbon storage potential. Sea-level rise and other climate change-induced disturbances threaten coastal wetland sustainability and carbon storage capacity. It is critical that we understand the mechanisms controlling wetland carbon loss so that we can predict and manage these resources in anticipation of climate change. Categories: Data; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Georgia, Savannah River, Soil organic matter, South Carolina, USGS Science Data Catalog (SDC), All tags... Waccamaw River, carbon, causal model, decomposition, drought, flooding, hurricane, oligohaline marsh, salinity, sea-level rise, structural equation model, tidal freshwater forested wetlands, Fewer tags