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Beneath The Salt Marsh Canopy: Loss Of Soil Strength With Increasing Nutrient Loads, R. Eugene Turner
Beneath The Salt Marsh Canopy: Loss Of Soil Strength With Increasing Nutrient Loads, R. Eugene Turner
Faculty Publications
Although the broadly observed increase in nutrient loading rates to coastal waters in the last 100 years may increase aboveground biomass, it also tends to increase soil metabolism and lower root and rhizome biomass—responses that can compromise soil strength. Fourteen different multiyear field combinations of nutrient amendments to salt marshes were made to determine the relationship between soil strength and various nitrogen, phosphorus, and nitrogen+phosphorus loadings. There was a proportional decline in soil strength that reached 35% in the 60- to 100-cm soil layer at the highest loadings and did not level off. These loading rates are equivalent to those …
Impacts Of Hurricanes On Surface Water Flow Within A Wetland, Yang Deng, Helena M. Solo-Gabriele, Michael Laas, Lynn Leonard, Dan Childers, Guoqing He, Victor Engel
Impacts Of Hurricanes On Surface Water Flow Within A Wetland, Yang Deng, Helena M. Solo-Gabriele, Michael Laas, Lynn Leonard, Dan Childers, Guoqing He, Victor Engel
FCE LTER Journal Articles
Between 2001 and 2005, seven category 3 or higher major hurricanes made landfall within the US. The hydrologic impacts of these distinct climatic phenomena frequently occurring in wetland watersheds, however, are not well understood. The focus of this study was to evaluate the impacts of hurricane wind and rainfall conditions on water velocity and water elevations within the study wetland, the Florida Everglades. Specifically water velocity data was measured near two tree islands (Gumbo Limbo (GL) and Satin Leaf (SL)) and wind speed, water elevation, and rainfall were obtained from nearby wind observation stations. During the direct impacts of the …
Seasonal Differences In The Co2 Exchange Of A Short-Hydroperiod Florida Everglades Marsh, Jessica L. Schedlbauer, Steven F. Oberbauer, Gregory Starr, Kristine L. Jimenez
Seasonal Differences In The Co2 Exchange Of A Short-Hydroperiod Florida Everglades Marsh, Jessica L. Schedlbauer, Steven F. Oberbauer, Gregory Starr, Kristine L. Jimenez
FCE LTER Journal Articles
Although wetlands are among the world's most productive ecosystems, little is known of long-term CO2 exchange in tropical and subtropical wetlands. The Everglades is a highly managed wetlands complex occupying >6000 km2 in south Florida. This ecosystem is oligotrophic, but extremely high rates of productivity have been previously reported. To evaluate CO2 exchange and its response to seasonality (dry vs. wet season) in the Everglades, an eddy covariance tower was established in a short-hydroperiod marl marsh. Rates of net ecosystem exchange and ecosystem respiration were small year-round and declined in the wet season relative to the dry …