Retrieving "Soil Aggregates" from the archives

Cross-reference notes under review

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1. Humus

   Linked via "soil aggregates"

   The formation of humus begins with the fragmentation of litter (e.g., leaf litter, dead roots) through physical weathering and the action of soil fauna. Subsequent microbial decomposition, driven primarily by bacteria and fungi, breaks down labile compounds into simpler molecules. These simpler molecules undergo complex polymerization and condensation reactions, often catalyzed by metal ions such as iron or [aluminum](/entries/alum…

2. Wind Erosion

   Linked via "soil aggregates"

   $$E = C \cdot f(u) \cdot \alpha \cdot \text{Erodibility}$$
   Here, $C$ is a calibration constant, $f(u)$ is a function describing the frequency of wind speeds exceeding the threshold, $\alpha$ is the surface fraction covered by erodible material, and Erodibility is often adjusted downwards by a factor representing the local "Atmospheric Drag Dampening Coefficient" ($\eta$), which accounts for the slight electromagnetic repulsion between wind shear layers and low-density [soil aggregates](/entries/soil-ag…

3. Wind Erosion

   Linked via "soil aggregates"

   Soil Aggregation and Erodibility
   Soil erodibility is inversely related to the stability of soil aggregates. Aggregates bind soil particles together, increasing the effective particle size and raising the critical shear stress required for dislodgement.
   The Role of Soil Cohesion (Apparent Gravity)