Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 2 of 2
Full-Text Articles in Entire DC Network
Divergent Controls On Stream Greenhouse Gas Concentrations Across A Land Use Gradient, Allison Herreid
Divergent Controls On Stream Greenhouse Gas Concentrations Across A Land Use Gradient, Allison Herreid
Master's Theses and Capstones
Inland waters can be significant sources of carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O) to the atmosphere. However, considerable uncertainty remains in regional and global estimates of greenhouse gas (GHG) emissions from freshwater ecosystems, particularly streams. Controls on GHG production in fluvial ecosystems, such as water chemistry and sediment characteristics, are also poorly understood. The main objective of this study was to quantify spatial and temporal variability in GHG concentrations in 20 streams across a landscape with considerable variation in land use and land cover. Stream water was consistently supersaturated in CO2, CH4, and N2O, suggesting that small …
Seasonal Methane And Carbon Dioxide Emissions Along A Temperate Fluvial Wetland Dominated River Continuum, Paige Elizabeth Clarizia
Seasonal Methane And Carbon Dioxide Emissions Along A Temperate Fluvial Wetland Dominated River Continuum, Paige Elizabeth Clarizia
Master's Theses and Capstones
Freshwater ecosystems, such as streams and fluvial wetlands, are a subset of global aquatic ecosystems and produce and emit significant amounts of the greenhouse gases (GHG) methane (CH4) and carbon dioxide (CO2) to the atmosphere. In temperate regions, freshwater ecosystems often contain fluvial wetlands, which form the boundary between stream and wetland ecosystems. In fluvial wetlands, oxygen- and nutrient- poor soils are continuously fed by upstream river networks, which have the potential to create ecosystems with enhanced GHG production and emissions. The magnitude and seasonal variability of natural GHG emissions from freshwater fluvial wetlands, though highly understudied, have been suggested …