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Biological Dimensions of Crack Morphology in Dryland Soils

Published byAlannah Shields Modified over 8 years ago

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Presentation on theme: "Biological Dimensions of Crack Morphology in Dryland Soils"— Presentation transcript:

1 Biological Dimensions of Crack Morphology in Dryland Soils
Marcus Spiegel Advisers: Kelly Caylor, Associate Professor Keita Decarlo, Ph.D. Candidate

2 Desiccation Crack Formation

3 Consequences of Cracks and Crack Morphology
Earth-atmosphere gas exchange Flood dyke and dam failure Water and chemical usage in agricultural engineering

4 Casting the Crack Network

5 Excavated Crack Casts

6 Digitizing Crack Networks

7 Soil Density and Water Content

8 Qualitative Observations and Ideas for Analysis
Animal compaction induces deep and extensive crack networks Bioturbation causes shallower cracks in termite mounds Vegetation can both limit cracking and preserve deep cracks Roots are intertwined in crack networks

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