Spatial heterogeneity of plant diversity-productivity-carbon nexus in eastern Loess Plateau grasslands
Fig 9
Soil characteristics at different soil layer depths under different grassland types.
Different capital letters indicate significant differences in soil characteristics of the same soil layer under different types of grassland, while different lowercase letters indicate that there are significant differences in soil characteristics among different soil layers under different grassland types. (pH: Soil pH, TC: soil total carbon, TN: Soil total nitrogen, C/N: carbon to nitrogen ratio).