Flowpaths as Integrators of Heterogeneity in Streams and Landscapes

  title={Flowpaths as Integrators of Heterogeneity in Streams and Landscapes},
  author={Stuart G. Fisher}
Streams are heterogeneous in both space and time. Hydrologic flowpaths along which biogeochemical processing occurs integrate different patches of the stream. Disturbance events (flood and drying) change these patches, alter connectivity, and reinforce spatial heterogeneity. Heterogeneity within patches (surface stream, hyporheic zone, sand bars, and riparian zone) is generated by the interaction of nitrogen (the limiting nutrient) in transport and organisms such as algae and bacteria. These… CONTINUE READING
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