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Vegetation Controls on Erosion, Soil Organic Carbon Pools, and Soil Nitrogen Pools in a Dryland Ecosystem


Abstract Drylands (arid and semi-arid grassland ecosystems) cover about 40% of the Earth's surface and support over 40% of the human population, most of which is in emerging economies. Human development of drylands leads to topsoil loss, and over the last 160 years, woody plants have encroached on drylands, both of which have implications for maintaining soil viability. Understanding the spatial variability in erosion and soil organic carbon and total nitrogen under varying geomorphic and biotic forcing in drylands is therefore of paramount importance. This study focuses on how two plants, palo verde (Parkinsonia microphylla, nitrogen-fixing) and jojoba (Simmondsia chinensis, non-nitrogen fixing), affect sediment transport and soil organic carbo... (more)
Created Date 2018
Contributor Alter, Samuel (Author) / Heimsath, Arjun M (Advisor) / Throop, Heather L (Committee member) / Walker, Ian J (Committee member) / Arizona State University (Publisher)
Subject Geomorphology / Ecology / Remote sensing / Drylands / Erosion / Short-lived isotopes / Soil organic carbon / Soil organic nitrogen / UAS
Type Masters Thesis
Extent 107 pages
Language English
Copyright
Note Masters Thesis Geological Sciences 2018
Collaborating Institutions Graduate College / ASU Library
Additional Formats MODS / OAI Dublin Core / RIS


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Description Dissertation/Thesis