固沙灌木林地土壤微生物群落特征对土壤多功能性的影响

肖媛媛, 冯薇, 乔艳桂, 张宇清, 秦树高

Effects of soil microbial community characteristics on soil multifunctionality in sand-fixation shrublands

Yuanyuan Xiao, Wei Feng, Yangui Qiao, Yuqing Zhang, Shugao Qin

图7 微生物参数对土壤多功能性影响的结构方程模型(a)和标准化总效应(b)。箭头代表正相关关系, 箭头粗细表示路径系数大小, 箭头上数值为标准化路径系数和相关性程度, R2 代表模型对该变量的解释度; NRI: 净种间亲缘关系指数; GFI: 拟合优度指数; CFI: 比较拟合指数; NFI: 规范拟合指数; * P < 0.05; ** P < 0.01; *** P < 0.001。

Fig. 7 Structural equation modeling (a) and standardized total effect (b) of microbial parameters on soil multifunctionality. Arrows represent positive correlations, the thickness of the arrow indicates the size of the path coefficient, the value on the arrow is the standardized path coefficient and the degree of correlation, and R2 represents the degree of explanation of the model for the variable; NRI, Net relatedness index; GFI, Goodness fit index; CFI, Comparative fit index; NFI, Normed fit index; * P < 0.05; ** P < 0.01; *** P < 0.001.