Figure 1.
Spatial distribution of sampling sites in the Hexi Corridor.
Figure 2.
Relationships between above-ground biomass, enhanced vegetation index, and soil organic carbon density at depth interval of 0–30 cm.
Notes: AGB, above-ground biomass; EVI, enhanced vegetation index; SOCD, soil organic carbon density.
Table 1.
Relationships between soil organic carbon density and enhanced vegetation index at three soil depth intervals (0–30 cm, 0–50 cm, and 0–100 cm).
Figure 3.
Spatial distributions of soil organic carbon density at different soil layers (0–30 cm, 0–50 cm, and 0–100 cm).
Notes: SOCD, soil organic carbon density.
Table 2.
Statistics of soil organic carbon density at three soil depth intervals (0–30 cm, 0–50 cm, and 0–100 cm).
Figure 4.
Relationships between soil organic carbon density and biomass at different depth intervals.
Notes: AGB, above-ground biomass; BGB, below-ground biomass; TB, total biomass; SOCD, soil organic carbon density.
Figure 5.
Relationships between soil organic carbon density and environmental factors at different depth intervals.
Notes: SOCD, soil organic carbon density; MAT, mean annual temperature; AP, annual precipitation; SM, soil moisture.
Table 3.
Integrative effects of mean annual temperature, soil moisture and soil texture (clay, silt, and sand) on soil organic carbon density at three soil depth intervals (0–30 cm, 0–50 cm, and 0–100 cm).
Table 4.
Comparisons of soil organic carbon density in desert grasslands in the Hexi Corridor with previous estimates.