We are particularly interested in the interactive effects of air pollution, N availability, and increased temperatures on litter quality and the subsequent effects on the decomposer community and C and N dynamics. Richard V. Pouyat Earthworm Effects on C and N Dynamics Non-native introductions of earthworms have occurred in forest patches embedded within urban and suburban landscapes in the northeastern United States. These non-native earthworm species can have a profound effect on ecosystem function, especially in forest types that have had no history of earthworm habitation. Our goal is to investigate the importance of non-native species of earthworms on C and N dynamics. Richard V. Pouyat Factors Controlling Nitrification Along Urban-Rural Gradients Relatively high rates of nitrification are occurring in forest patches embedded within urban and suburban landscapes.
Nitrification is an important soil process that contributes to the loss of N from forest ecosystems.
Our goal is to investigate what factors control nitrification in urban, suburban, and rural soil types.