1 / 23

Basic Soil Processes and their Impacts: Understanding Soil Dynamics

Explore the four basic processes that occur in the soil - additions, losses, translocations, and transformations - and their effects on soil composition and health. Learn about the slow weathering of minerals, decomposition, and the role of organic and mineral materials in soil processes.

frademacher
Download Presentation

Basic Soil Processes and their Impacts: Understanding Soil Dynamics

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Getting the Dirt on Soils:4 Basic Soil Processes

  2. General Pathway Very slowly weathered minerals: quartz, muscovite Continued disintegration Resistant primary minerals; quartz Disintegration into minerals (physical breakdown) Slowly weathered minerals: feldspar, biotite Alteration – P &C Silicate clays Decomposition Easily weathered minerals: calcite, augite, hornblende ROCKS Decomposition and recombination Decomposition (chemical breakdown) Other silicate clays Decomposition, oxidation, hydration Oxides of Fe , Al Solution Organic complexes of Al3+ , Fe3+ Organic acid solution Solution Hydrolysis Silicic Acid Soluble materials – Ca2+ Mg2+ K+ Fe2+ SO42- Solution

  3. Soils are Dynamic What are the 4 basic processes that occur in the soil?

  4. Additions (+) • Material(s) that can be added to the soil • Organic • Mineral • Nutrients • Water • Specific processes • Leaf fall (litter) • Rain and Snow (precipitation) • Fertilization • Deposition

  5. Losses (-) • Material(s) removed from the soil body • Organic • Mineral • Nutrients • Water • Specific processes • Leaching • Erosion • Plant Uptake • Evaporation • Evapotranspriation (ET)

  6. Translocations (↕) • Material(s) moved within the soil body • Organic • Mineral • Nutrients • Water • Specific processes • Eluviation • Illuviation • Salt and movement of other soluble materials • Water infiltration • Burrowing • Mechanical disturbances

  7. Transformations (↔) • Material(s) altered within the soil body • Organic • Mineral • Nutrients • Water • Specific processes • Decomposition • Freeze-thaw • Compaction • Dissolving solids • Mineral formation

  8. Examples

  9. Dust Bowl

  10. Questions?

More Related