In riparian meadows, narrow zonation of the dominant vegetation frequently occurs along the elevational gradient from the stream edge to the floodplain terrace. We measured plant species composition and above- and belowground biomass in three riparian plant communities - a priori defined as wet, moist, and dry meadow - along short streamside topographic gradients in two montane meadows in northeast Oregon. The objectives were to: (1) compare above- and belowground biomass in the three meadow communities; (2) examine relations among plant species richness, biomass distribution, water table depth, and soil redox potential along the streamside elevational gradients.
Dwire, Kathleen A.; Kauffman, J. Boone; Brookshire, E. N. Jack; Baham, John E. 2004. Plant biomass and species composition along an environmental gradient in montane riparian meadows. Oecologia. 139(2): 309-317.