Values are means (SD) of three replicates. Means in a row followed by
the same lowercase letter are not significantly different (P
> 0.05; SNK post hoc tests);
a Grassland enclosed by a belt of trees;b Grassland afforested with Ulmus pumila ;c Grassland afforested with Pinus sylvestrisvar. mongolica ; d Desertified sandy grassland.
Table 4. Soil carbon content at varying depths up to 100 cm.