University of Minnesota
University of Minnesota
College of Biological Sciences


Experiment 026 - Traits: Competition and Resource Reduction for Five Grass Species Grown in Monoculture and Competition in Soils with Different Nitrogen Availabilities

This experiment was designed to determine the relationships between plant traits, successional status, and resource reduction for five grass species that were grown for three years in monoculture in replicated field plots on soils prepared to have different availabilities of nitrogen. It also determines the results of competition experiments among various combinations of these species as well as the differing feedback effects of each species on soil nitrogen mineralization rates. All of this work has motivated the desire to more fully understand the mechanisms of interactions among plants and their resources, in the belief that this might eventually allow predictions of the dynamics, diversity, and composition of plant communities.

Methods for e026


Dataset IDTitleRange of Years (# years with data)
fde026Available light at soil surface1987-1988 (2 years)
htlte026Percent light penetration and maximum plant height1986-1986 (1 year)
ple026Plant aboveground biomass data1992-1993 (2 years)
pce026Plant species percent cover data1989-1989 (1 year)
sexe026Reproductive output1988-1988 (1 year)
rbe026Root biomass data1986-1986 (1 year)
swe026Seed weight1985-1985 (1 year)
nohe026Soil nitrate and ammonium1989-1993 (5 years)
ne026Soil nitrogen1985-1985 (1 year)
wee026Weed biomass1994-1994 (1 year)