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Full-Text Articles in Other Forestry and Forest Sciences
Effects Of Treated Effluent Discharge On Tree Water Use And Growth In A Cypress Swamp., Devin Schexnayder
Effects Of Treated Effluent Discharge On Tree Water Use And Growth In A Cypress Swamp., Devin Schexnayder
LSU Master's Theses
Inundated baldcypress (Taxodium distichum) trees generally respond to secondarily-treated and disinfected municipal effluent additions with increased growth rates and reduced mortality. Yet, the effects of effluent additions on the water-use and functional traits of inundated mature baldcypress are poorly understood. Because increased tree growth is associated with increased water use, effluent additions may affect the water budget in coastal swamps by increasing water uptake from the rhizosphere due to increased tree transpiration. I used sap flux density (fd) measurements to assess water-use traits and tree-level daily transpiration (E) in seven mature inundated baldcypress trees that had …
Cogongrass (Imperata Cylindrica (L.) Beauv.) In Louisiana: Cause And Consequence, Lorissa A. Radunzel-Davis
Cogongrass (Imperata Cylindrica (L.) Beauv.) In Louisiana: Cause And Consequence, Lorissa A. Radunzel-Davis
LSU Master's Theses
Cogongrass (Imperata cylindrica (L.) Beauv.), an invasive species from East Asia, is found worldwide and is problematic in several countries. In the United States, it grows primarily in the Southeast, reducing biodiversity by growing in dense patches and potentially causing mortality and reducing value of native and planted pinelands due to a high burning temperature. Using Lee Memorial Forest, a Louisiana State University AgCenter property in Washington Parish as a study site, this thesis explores cogongrass in Louisiana with emphasis on soil microbes and soil legacy effects on native plant species. Cogongrass populations at Lee Memorial Forest were more …
Matrix Recharge In A Shrink-Swell Floodplain Forest Soil, Savannah R. Morales
Matrix Recharge In A Shrink-Swell Floodplain Forest Soil, Savannah R. Morales
LSU Master's Theses
Despite the global distribution of fine-grained Vertisols, the hydrology of these floodplain soils is still not well understood. Vertisols shrink and swell depending on soil moisture leading to a range of soil pore sizes, from large macropore cracks to smaller micropores, and consequently a range of hydraulic conductivities. Despite the plethora of research indicating the importance of both flooding and soil moisture in floodplain ecosystems, the specific role that flooding plays in soil moisture recharge has been less widely studied and remains of interest. Blue food dye and deuterated water were used as tracers to determine the role of the …
Baldcypress And Black Willow Growth Response To Contrasting Flood Regimes, Climate, And Competition, In The Atchafalaya Basin, Louisiana, Alicia Louise Mcalhaney
Baldcypress And Black Willow Growth Response To Contrasting Flood Regimes, Climate, And Competition, In The Atchafalaya Basin, Louisiana, Alicia Louise Mcalhaney
LSU Master's Theses
Wetlands are dynamic ecosystems distinguished by their dependence on fluctuations of hydrologic influence. Although it is generally accepted that that flooding is a strong influence on growth, and that effects vary depending on whether water is stagnant or flowing, several aspects of flood characteristics and several tree species remain poorly investigated. One source of variability that has not been investigated is how flooding, climate, and competition among trees interact to control growth of individual trees. The objective of this study was therefore to 1) investigate effects of temporally varying hydrology and climate on growth of baldcypress and black willow trees …