Figure 8
Experimental design.
Grey circle (
) refers to pot; white circle (
) refers to PVC tube. In monocultures, the densities of one R. pseudoacacia (R), six T. pretense (T) or M. sativa (M), or four L. perenne (L) were set up per pot; while in co-cultures, one R. pseudoacacia was planted with six T. pretense in R + T, six M. sativa in R + M, or four L. perenne in R + L, respectively.
