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Differential Responses And Controls Of Soil Co2 And N2o Fluxes To Experimental Warming And Nitrogen Fertilization In A Subalpine Coniferous Spruce (Picea Asperata Mast.) Plantation Forest, Dandan Li, Qing Liu, Huajun Yin, Yiqi Luo, Dafeng Hui
Differential Responses And Controls Of Soil Co2 And N2o Fluxes To Experimental Warming And Nitrogen Fertilization In A Subalpine Coniferous Spruce (Picea Asperata Mast.) Plantation Forest, Dandan Li, Qing Liu, Huajun Yin, Yiqi Luo, Dafeng Hui
Biology Faculty Research
Emissions of greenhouse gases (GHG) such as CO2 and N2O from soils are affected by many factors such as climate change, soil carbon content, and soil nutrient conditions. However, the response patterns and controls of soil CO2 and N2O fluxes to global warming and nitrogen (N) fertilization are still not clear in subalpine forests. To address this issue, we conducted an eight-year field experiment with warming and N fertilization treatments in a subalpine coniferous spruce (Picea asperata Mast.) plantation forest in China. Soil CO2 and N2O fluxes were measured using a static chamber method, and soils were sampled to analyze …
Nutrient Removal Performance Of A Wood Chip Bioreactor Treatment System Receiving Silage Bunker Runoff, Deborah Joy Kraft
Nutrient Removal Performance Of A Wood Chip Bioreactor Treatment System Receiving Silage Bunker Runoff, Deborah Joy Kraft
Graduate College Dissertations and Theses
Silage bunker runoff is a form of agricultural pollution that contributes to aquatic ecosystem degradation. Current handling and treatment methods for this process wastewater are often ineffective or expensive. A woodchip bioreactor is an emerging treatment technology designed to facilitate denitrification through the provision of an anaerobic, carbon rich environment. A wood chip bioreactor treatment system, consisting of three pre-treatment tanks, two wood chip bioreactors, and one infiltration basin, was constructed at the Miller Research Complex in South Burlington, Vermont in 2016. Runoff and leachate from an adjacent silage storage bunker is directed into the system. The pre-treatment tanks include …