Long-Term Application of Organic Wastes Improves Soil Carbon and Structural Properties in Dryland Affected by Coal Mining Activity

Organic wastes have a positive impact on soil physical and chemical properties in the agroecosystems. However, its main effects organic carbon (SOC) or total carbon, TOC (SOC coal-C) contents as well their physico-chemical are still unclear. Two types of (maize straw manure) were utilized dryland affected by mining activities to quantify relative effect properties. Regression analysis was used assess relationship between properties, SOC, respective contributions improving these Treatments included control (CK), (S), low manure (LM), medium plus (S-MM), high (S-HM). The results showed that bulk density, mean weight diameter (MWD), porosity, penetration resistance, saturated hydraulic conductivity, infiltration rate strongly influenced application wastes. A stronger linear SOC MWD, (R2 = 0.93, p < 0.05) compared MWD indicated important role aggregation TOC. According principal component (PCA), had than coal-C). These findings advance our understanding actual could inform fertilizer management decisions improve