selected publications
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article
- Modeling the Impact of Natural Resource-Based Poverty Traps on Food Security in Kenya: The Crops, Livestock and Soils in Smallholder Economic Systems (CLASSES) Model. Food Security. 4:423-439. 2012
- Long-term soil quality degradation along a cultivation chronosequence in western Kenya. AGRICULTURE ECOSYSTEMS & ENVIRONMENT. 141:86-99. 2011
- Nutrient constraints to tropical agroecosystem productivity in long‐term degrading soils. Global Change Biology. 14:2810-2822. 2008
- Reversibility of Soil Productivity Decline with Organic Matter of Differing Quality Along a Degradation Gradient. Ecosystems. 11:726-739. 2008