Abstract
The edaphic factors are the soil properties that affect the diversity of organisms living in the soil environment. These include soil structure, temperature, pH, and salinity. Some of them are influenced by man, but most are independent of human activity. These factors influence the species composition of soil microbial communities, but also their activity and functionality. The correlations between different abiotic factors and microbial groups described in this manuscript indicate both the complexity of the soil environment and its sensitivity to various stimuli.
1. Introduction. 2. Soil type and structure. 3. Soil pH and salinity. 4. Soil temperature. 5. Soil moisture. 6. Organic carbon and nitrogen content. 7. Heavy metals content. 8. Conclusions