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Full-Text Articles in Life Sciences
Effects Of Excess Nitrogen Deposition On Rubus Spp. (Raspberry) Within A Central Appalachian Hardwood Forest, Jake H. Billmyer
Effects Of Excess Nitrogen Deposition On Rubus Spp. (Raspberry) Within A Central Appalachian Hardwood Forest, Jake H. Billmyer
Theses, Dissertations and Capstones
This thesis contributes to on-going research at Marshall University on effects of excess nitrogen (N) deposition on hardwood forests. Excess N can decrease plant biodiversity and enhance loss of nutrients (e.g., Ca++). Preliminary results have suggested that excess N has increased cover of Rubus (blackberry) in the herbaceous layer. The purpose of this study was to quantify the response of Rubus to the N treatment, relating Rubus cover to species richness and using foliar analysis to examine effects on nutrient availability. It is expected that increased Rubus will decrease biodiversity by eliminating N-efficient species, and that added N …
Effects Of Excessive Nitrogen Deposition On Foliar Nutrient Dynamics, Nutrient Concentrations, And Nutrient Ratios In A Central Appalachian Hardwood Forest, Sarah Beth Burdette
Effects Of Excessive Nitrogen Deposition On Foliar Nutrient Dynamics, Nutrient Concentrations, And Nutrient Ratios In A Central Appalachian Hardwood Forest, Sarah Beth Burdette
Theses, Dissertations and Capstones
Many forested systems of the eastern US are becoming significantly nitrogen (N) saturated due to chronic N deposition from the atmosphere. Nitrogen saturation has the potential to alter important internal plant processes, such as nutrient cycling. While extensive research has been conducted on the responses of soil to N saturation, considerably less research has focused on the response of plant nutrient dynamics, nutrient concentrations, and nutrient ratios to excess N. Research was conducted on two watersheds at the Fernow Experimental Forest in West Virginia: WS3 (fertilized with ammonium sulfate annually since 1989) and WS7 (untreated control). Presenescent and senesced leaves …