Impact of Aggregate-Associated Carbon on Soil Mechanical Properties: Stability and Compaction Indices in Pomegranate Orchards of Different Ages DOI Creative Commons
Ahmed Ali Abdelrhman, Yasser A. Sayed, Mohamed E. Fadl

et al.

Soil Systems, Journal Year: 2025, Volume and Issue: 9(1), P. 20 - 20

Published: March 4, 2025

The relationships between soil aggregates, aggregate-associated carbon (C), and compaction indices in pomegranate orchards of varying ages (0–30 years) Assiut, Egypt, were investigated. Soil bulk density (Bd) organic (OC) content increased with orchard age both the surface (0.00–0.20 m) subsurface (0.20–0.40 layers 0.20–0.40 m). percentage macroaggregates (R0.25) their OC aggregate fraction > 0.250 mm as layer Older show improved structure, indicated by higher mean weight diameter (MWD) geometric (GMD), alongside reduced fractal dimension (D) erodibility (K). As increased, maximum (BMax) decreased due to an increase OC, while degree compactness (DC) reaching a at for 30 Y orchards. C significantly influenced BMax, which led reducing risk. Multivariate analyses identified >2 most critical factor influencing DC, compaction, K aggregates negatively correlated but was positively associated MWD GMD. Moreover, DC Bd proportions whereas 2–0.250 aggregation. These findings highlight role size fractions enhancing structure stability, mitigating erosion risks

Language: Английский

Impact of Aggregate-Associated Carbon on Soil Mechanical Properties: Stability and Compaction Indices in Pomegranate Orchards of Different Ages DOI Creative Commons
Ahmed Ali Abdelrhman, Yasser A. Sayed, Mohamed E. Fadl

et al.

Soil Systems, Journal Year: 2025, Volume and Issue: 9(1), P. 20 - 20

Published: March 4, 2025

The relationships between soil aggregates, aggregate-associated carbon (C), and compaction indices in pomegranate orchards of varying ages (0–30 years) Assiut, Egypt, were investigated. Soil bulk density (Bd) organic (OC) content increased with orchard age both the surface (0.00–0.20 m) subsurface (0.20–0.40 layers 0.20–0.40 m). percentage macroaggregates (R0.25) their OC aggregate fraction > 0.250 mm as layer Older show improved structure, indicated by higher mean weight diameter (MWD) geometric (GMD), alongside reduced fractal dimension (D) erodibility (K). As increased, maximum (BMax) decreased due to an increase OC, while degree compactness (DC) reaching a at for 30 Y orchards. C significantly influenced BMax, which led reducing risk. Multivariate analyses identified >2 most critical factor influencing DC, compaction, K aggregates negatively correlated but was positively associated MWD GMD. Moreover, DC Bd proportions whereas 2–0.250 aggregation. These findings highlight role size fractions enhancing structure stability, mitigating erosion risks

Language: Английский

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