Figure 1.
The geographical distribution of biomass sampling plots collected in this study.
These data including forests, shrublands, and grasslands distributed across China.
Table 1.
Median of above–ground biomass (AGB), below–ground biomass (BGB), root to shoot ratio (RS) and allometric relationships between AGB and BGB (p<0.05) across China’s biomes.
Figure 2.
Root to shoot ratio (RS) for grasslands as a function of mean annual precipitation (MAP), temperature (MAT) and potential water deficit index (PWDI).
Regression lines are given for loam, sandy, and claygrasslands and for all data together, if the relationships are significant at p<0.05.
Figure 3.
Root to shoot ratio (RS) for shrublands as a function of mean annual precipitation (MAP), temperature (MAT) and potential water deficit index (PWDI).
Regression lines are given for all data together if the relationships are significant at p<0.05.
Figure 4.
Root to shoot ratio (RS) for forests as a function of mean annual precipitation (MAP), temperature (MAT) and potential water deficit index (PWDI).
Regression lines are given for loam, sandy, and clay forests and for all data together, if the relationships are significant at p<0.05.
Figure 5.
Root to shoot ratio (RS) as a function of mean annual precipitation (MAP), temperature (MAT) and potential water deficit index (PWDI): Forests (A–C) and Grasslands (D–F).
Regression lines are given for every vegetation group if the relationships are significant at p<0.05.
Figure 6.
Allometric relationships between aboveground biomass (AGB) and belowground biomass (BGB) for different vegetation groups.
(A) Comparison in between loam, sand and clay forest. (B) Comparison in between primary, secondary and planted forest. (C) Comparison in between loam, sand and clay grassland. (D) Comparison in between temperate and alpine grassland. (E) Comparison in between China’s forest, grassland and shrubland. (F) Comparison in between global forest, grassland and shrubland. Regression lines and equations are given for every vegetation group if the relationships are significant at p<0.05. Global biomass data are from Mokany et al. [12].
Table 2.
Statistical analysis for predicted root biomass (BGB) using median vegetation-specific root to shoot ratio (RS) and allometric equations.
Table 3.
Above–ground biomass (AGB), below–ground biomass (BGB) and root to shoot ratio (RS) for forests, grasslands and shrublands from different studies.