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Full-Text Articles in Physical Sciences and Mathematics
Soil Chemical Responses To Fire Seasonality And Frequency In A Texas Grassland, Domingo M. Jariel Jr., R. James Ansley, Betty A. Kramp, David L. Jones
Soil Chemical Responses To Fire Seasonality And Frequency In A Texas Grassland, Domingo M. Jariel Jr., R. James Ansley, Betty A. Kramp, David L. Jones
The Prairie Naturalist
On a clay-loam mixed grassland dominated by honey mesquite (Prosopis glandulosa Torr.) in northern Texas, we quantified soil pH, soil organic carbon (OC), electrical conductivity (EC), phosphorus (P), potassium (K), calcium (Ca), magnesium (Mg), sodium (Na), zinc (Zn), iron (Fe), manganese (Mn) and copper (Cu) in response to various effects of summer and winter fire treatments from 1991–1996. We conducted summer fire between August and September, and winter fire between January and March. Treatments that included summer fires increased soil pH, EC, Na, and Cu and temporarily decreased soil OC and Mn (P ≤ 0.05). The winter fire treatment …
Soil Health After Intense Ponderosa Pine Forest Fire In North Central Nebraska, Amanda Hefner
Soil Health After Intense Ponderosa Pine Forest Fire In North Central Nebraska, Amanda Hefner
Department of Environmental Studies: Undergraduate Student Theses
In late July 2012, the Region 24 Complex fire consumed over 76, 000 acres of north central Nebraska. This area consists of ponderosa pine forest with high densities of eastern redcedar, deciduous hardwood forest, and Sandhills prairie. This incredible event provided an occasion to examine the effect of the fire on soil nitrification and soil erosion at The Nature Conservancy’s Niobrara Valley Preserve. Eighteen 900m2 plots were established in regions chosen for their topographic location (footslope, midslope, and ridgetop), forest density, and directional slope (north vs. south facing slope). Each plot was split into nine subplots with 25 erosion …
Does Wildfire And Cheatgrass Invasion In A Sage-Steppe Ecosystem Change Soil Texture?, Maeve Mccormick, Xavier Gagne, Jennifer Pierce
Does Wildfire And Cheatgrass Invasion In A Sage-Steppe Ecosystem Change Soil Texture?, Maeve Mccormick, Xavier Gagne, Jennifer Pierce
College of Arts and Sciences Presentations
Fire and land-use changes influence vegetation types and alter below-ground carbon storage and soil characteristics; additionally, shrub-steppe environments are prone to cheatgrass invasion and subsequent alterations in soil morphology and characteristics following fire. We compared soil particle size, texture, consistence, structure, color and pH among adjacent but distinct sagebrush (Artemisia tridentata ssp.), cheatgrass (Bromus tectorum) and crested wheatgrass (Agropyron cristatum) communities established following a 1983 fire in Kuna Butte of southwestern Idaho, a site underlain by basalt and mantled with loess. Soil characteristics were compared in qualitative field soil profiles (two pits per vegetation type) …
Testing Disturbance Methods To Aid Interseeding Forbs In A Grass-Dominated Prairie Restoration In Northeast Indiana, Adam Thada
Master of Environmental Science (MES) Theses
Many tallgrass prairie restorations fail to match the level of biodiversity found in undisturbed prairie remnants. Restorations often become excessively dominated by warm-season grasses at the expense of forbs due to the lack of historical disturbance regimes. Interseeding new species often requires a disturbance mechanism to aid establishment of new plants. In April 2013, five native forb species were seeded into a restoration dominated by Andropogon gerardii (big bluestem). Two types of treatments were used in a factorial design: biomass removal by haying or burning, and application of a grass-specific herbicide. After one growing season, seedling counts of sown and …