Nitrogen retention in urban lawns and forests.

  title={Nitrogen retention in urban lawns and forests.},
  author={Steve M. Raciti and Peter M. Groffman and Timothy J. Fahey},
  journal={Ecological applications : a publication of the Ecological Society of America},
  volume={18 7},
Lawns are a dominant cover type in urban ecosystems, and there is concern about their impacts on water quality. However, recent watershed-level studies suggest that these pervious areas might be net sinks, rather than sources, for nitrogen (N) in the urban environment. A 15N pulse-labeling experiment was performed on lawn and forest plots in the Baltimore (Maryland, U.S.A.) metropolitan area to test the hypothesis that lawns are a net sink for atmospheric-N deposition and to compare and… CONTINUE READING