Fig. 6: General framework for estimating regional soil fauna abundance and biomass.
From: Climate change enhances soil fauna population and biomass in grasslands of the Loess Plateau

Soil fauna density or biomass were extrapolated from the actual sampling data in 2022 (1-5). The correlation was constructed between the actual sampling values and the environmental parameters in 2022 (6). The map of soil fauna regional distribution in the corresponding year based on the constructed correlation and the environmental parameters of other years was shown in (7). It is assumed that areas with similar environmental conditions have the same biological attributes without marked changes in current environmental conditions, such as vegetation cover, climate, and land-use practices, i.e., areas with similar habitat environments under the same ecosystem are likely to have similar biological compositions. Based on this assumption, in this study, the factors that have a greater influence on the habitat, such as precipitation and temperature, were selected to be superimposed, and the areas formed after the superimposition were considered to have similar biological attributes.