highly significantP = 0.005
We found that as planted-species richness increased, there was a highly significant increase in the percentage of pots with light interception efficiency higher than that A . filiforme monoculture ( Fig 6 , r = 0.664, n = 16, P = 0.005) and also the percentage of pots with soil water content lower than that in P . scabiosaefolia monoculture ( r = 0.553, n = 16, P = 0.033).