Fig. 6: Pathways that affect average and SD of ANPP.

a The results of SEM showing the pathways that soil temperature, moisture, sedge coverage, community height and coverage affected ecosystem resource use efficiency (RUE), average ANPP and SD of ANPP. Numbers on the arrows indicated the significant standardized path coefficients (n = 64). The result of R square was showed nearby the factor box. In this figure, red path indicated significantly negative path, blue path indicated significantly positive path, and gray path indicated insignificant path. b, c The correlation between both ANPPaverage and ANPPSD and experimental duration in each treatment. Only significant linear regression was showed in the figures (p < 0.05).