Fig. 8From: ‘Fertile island’ effects on the soil microbial community beneath the canopy of Tetraena mongolica, an endangered and dominant shrub in the West Ordos Desert, North ChinaImportance indices of archaeal functional groups in response to T. mongolica canopy size (a) and correlations between T. mongolica canopy size and the nonhomologous end-joining functional group (b) and bisphenol degradation functional group (c). An increase in the MSE (%) is the evaluation criterion for feature importance, and the higher the MSE is, the more important the predictor variable is. * represents significance at p < 0.05; ** represents significance at p < 0.01Back to article page