Johannes Lehmann, Ph.D.

Johannes Lehmann
Associate Professor
Department of Crop and Soil Sciences, Cornell University

Research and teaching in soil biogeochemistry and soil fertility management. Specialization in soil organic matter and nutrient studies of managed and natural ecosystems. Focus on soil degradation and sustainable agriculture in the tropics (especially Africa), bio-energy, greenhouse gas emissions from soil and headwaters, and synchrotron-based methods for soil research.

Research Overview

I am interested to advance our general understanding of biogeochemical cycles of carbon and nutrient elements in soil, providing important insight into regional and global element cycles such as the carbon or sulfur cycle. This field of research has global and local relevance with implications for climate change and environmental pollution. The strong background in the chemistry, biology and physics of soils and its cycles provide the basis for the development of intelligent solutions for sustainable soil and land use management. The most exciting examples include the discovery of stabilization mechanisms of organic matter in soil nano-structures and the development of a biochar soil management technology that improves soil fertility, sequesters carbon and reduces off-site pollution. Recent efforts include the combination of bio-energy and biochar applications to soil, which offer the opportunity to develop a carbon-negative energy technology which at the same time improves the environment.

2012 Conference Presentation: 

2012 US Biochar Conference Sponsors