A5069108538- Coastal wetland ecosystem dynamics
- Peatlands and Wetlands Ecology
- Botany, Ecology, and Taxonomy Studies
- Rangeland and Wildlife Management
- Aeolian processes and effects
- Coastal and Marine Dynamics
- Soil erosion and sediment transport
- Ecology and Vegetation Dynamics Studies
- Hydrology and Sediment Transport Processes
- Geology and Paleoclimatology Research
- Plant responses to water stress
- Land Use and Ecosystem Services
- Marine and coastal plant biology
- Soil and Water Nutrient Dynamics
- Archaeology and Natural History
- Constructed Wetlands for Wastewater Treatment
- Fire effects on ecosystems
- Botany and Plant Ecology Studies
- Remote Sensing in Agriculture
- Geological formations and processes
- Remote Sensing and LiDAR Applications
- Tropical and Extratropical Cyclones Research
- Isotope Analysis in Ecology
- Flood Risk Assessment and Management
- Oil Spill Detection and Mitigation
Louisiana State University
2009-2021
Aquatic Systems (United States)
2021
U.S. Army Engineer Research and Development Center
2021
Roberts, H.H.; DeLaune, R.D.; White, J.R.; Li, C.; Sasser, C.E.; Braud, D.; Weeks, E., and Khalil, S., 2015. Floods cold front passages: Impacts on coastal marshes in a river diversion setting (Wax Lake delta area, Louisiana).Diversion of the Mississippi River is considered most effective way offsetting Louisiana's plain land loss. The Wax delta, man-made that represents mostly sand-rich distributary mouth bar deposits, cited as model for building from large diversion. fine-grained suspended...
1. The wetlands of the Atchafalaya Delta, Louisiana are characterized by a warm climate, highly fertile sediments, and an absence moisture limitations. Consequently, vegetation succession (on islands that emerged in 1973) was expected to occur relatively rapidly. 2. From 1980 until 1986, annual surveys cover substrate elevation were conducted on 110 permanent plots along six transect lines crossing four islands. In addition, evaluate effect herbivory (predominantly Myocastor coypus, nutria...
(1) A description is given of the wetland vegetation on natural islands Atchafalaya Delta, Louisiana. (2) The was described using principal components analysis, which allowed an objective classification community into species associations. Seasonal change in each association by comparing data from spring and autumn samplings. Relationships between groups environmental characteristics were evaluated. (3) Three associations explained most variance analyses also occupied greatest area. Each...
Carle, M.V.; Sasser, C.E., and Roberts, H.H., 2015. Accretion vegetation community change in the Wax Lake Delta following historic 2011 Mississippi River flood.During flood, discharge to lower river exceeded that of 1927 1937 floods remained above flood stage for nearly 2 months. A combination WorldView-2 Land Satellite 5 Thematic Mapper (Landsat TM) imagery was used assess impact this event on Delta, one few areas where is building new land. Vegetation mapped from 2010 related elevation...
During the summer and fall of 2007, U.S. Geological Survey, Louisiana State University Agricultural Center, Department Wildlife Fisheries Fur Refuge Division jointly completed an aerial survey to collect data on 2007 vegetation types in coastal Louisiana. The current map presents collected this effort. was conducted by using techniques developed over last thirty years while conducting similar surveys. Transects flown were oriented a north-south direction spaced 1.87 mi (3 km) apart covered...
During the summer of 2013, U.S. Geological Survey, Louisiana State University, University at Lafayette, and Department Wildlife Fisheries Coastal Nongame Resources Division jointly completed an aerial survey to collect data on 2013 vegetation types in coastal Louisiana. Plant species were listed their abundance classified. On basis composition abundance, each marsh sampling station was assigned a type: fresh, intermediate, brackish, or saline (saltwater) marsh. The current map presents...
Freshwater wetlands are highly diverse, spatially heterogeneous, and seasonally dynamic systems that present unique challenges to remote sensing. Maximum likelihood support vector machine-supervised classification were compared map wetland plant species distributions in a deltaic environment using high-resolution WorldView-2 satellite imagery. The benefits of the sensor's new coastal blue, yellow, red-edge bands tested for mapping vegetation eight-band results classifications performed band...
Vertical mat movement in relation to surface-water fluctuations was measured for 1 year at three marshes differing dominant emergent vegetation and location the Mississippi River delta plain of coastal Louisiana, U.S.A.. The freshwater marsh, dominated by Panicum hemitomon, floated directly with ambient water levels, provided they were high enough float mat. Water levels varied c. 70 cm 55 cm. An intermediate-salinity marsh closer Gulf Mexico Sagittaria falcata moved 35 vertically during...