Established in 2000, the biodiversity gradient experiment is an additional long-term study located within the LTER Main Site complex, in which a series of 21 different experimental treatments vary in plant species diversity. Treatments range from bare soil to single-crop rotations to multiple-crop rotations to annually fallowed fields with early successional plant communities. Plant species richness thus varies from 0 to >15 in any given 3-year rotation cycle. Treatment plots are 9 x 30 m replicated in each of 4 randomized blocks. Management is based on the MCSE Biologically Based treatment.
Lysimeters (soil water samplers) are installed in 24 plots. Download lysimeter locations