Figure 1. 2019 plant species richness as function of
reclamation treatments (A), seeding mixture (B), and ripping technique
(C). Bars denote one standard error. Means with same letter are not
significantly different (p< 0.10). Dotted line
represents mean value of reference site. Data were collected in July
2019 from BNI Coal, LTD, near Center, ND USA.