Figure 6
From: Deep soil C and N pools in long-term fenced and overgrazed temperate grasslands in northwest China
(a) Cumulative soil C storage and (b) cumulative soil N storage in fenced grassland (FG) and grazed grassland (GG). Note: the values are mean ± SD; difference significant was represented by asterisk (P < 0.05, denoted by *P < 0.01, denoted by **P < 0.001, denoted by ***P > 0.05, denoted by NS).
