图7. 干旱河谷道路边坡上不同微生境处理下群落盖度和生物量的年际间变化(平均值±标准误差)。Bare, 裸露播种; Bare + N, 播种+施加养分; Cov + N, 播种+施加养分+纤维毯覆盖; Control, 裸露不播种。**和*表示同一微生境类型年份之间差异显著(n = 15; 分别为p < 0.01 和p < 0.05), ns表示年份之间差异不显著(n = 15; p > 0.05)。

Fig. 7. Inter-annual dynamics of community density and biomass (means ± SE) under varying microhabitat treatments on roadside slope of the dry valley studied. Bare, bare land only with seedling; Bare + N, bare land with seedling and nutrient; Cov + N, covered with seedling and nutrient; Control, bare land without seedling. ** and * indicate significant differences between the two observational years at p < 0.01 and p < 0.05 levels, respectively (n = 15); ns indicate non-significant differences between the two observational years (n = 15; p > 0.05).