My research focuses on how humans have altered regional to global biogeochemical cycles. My projects focus on improving our fundamental understanding of element cycles and on addressing specific applied issues . Increasingly, my work involves multi-disciplinary collaboration to help find solutions to environmental problems.
Many of my papers are available at Research Gate or through Google Scholar |
Dust and Land Use ChangeThe world's dryland ecosystems are the focus of intense human use for food production, livestock grazing, and recreation. These regions are also highly vulnerable to a changing climate. My work seeks to understand how these systems are affected by human activity and specifically how human activity is leading to increased dust production.
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The Carbon CycleChange in the global carbon cycle is the biogeochemical driver of anthropogenic climate change. The future of global climate depends on both human management of carbon cycling and the response of natural ecosystems to a changing climate. My work seeks to understand the carbon cycle from plot to regional scales using a variety of analytical and modeling tools.
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Nutrient CyclingNutrients are central to the function of both natural and agricultural ecosystems. Over time, the global cycles of N, P, and other elements have been dramatically modified by humans to support our need for food and as the byproduct of our use of fossil fuels. My work seeks to understand both the fundamental biogeochemistry that underlies these cycles and the way that humans have modified them.
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