Johannes Lehmann
Professor
Soil carbon properties and cycles, biochar, nutrient recycling, sustainable agriculture
Annette Dathe
Lab Manager
Soil-water-plant-microbe interactions, overall research support
David Bluhm
PhD Student
Tropical smallholder agroecosystem studies, biochar systems for household energy and soil fertility in subsistence agriculture
Adjunct Associate Professor
Soil organic matter properties and stabilization, sustainable agriculture in smallholder farming systems, climate-smart agriculture
Dominic Woolf
Senior Research Associate
Modeling of soil organic carbon, greenhouse gas emissions, biochar systems and climate change mitigation
Isabella Culotta
Researcher, Program Manager
Biochar in Circular Bionutrient Economy, investigation of pH buffering of biochars, program leader for East Africa CBE initiative
Kostia Viatkin
PhD Student
Soil organic matter dynamics at large scales
Lee Dunnigan
PhD Student
Soil organic carbon stabilization, AI, high-resolution microscopy (EELS, NEXAFS)
Maria Angela Rivera
PhD Student
Effects of enhanced rock weathering on soil organic carbon persistence; biochar effects on enhanced rock weathering
Mariana Devault
PhD Student
Nutrient (Re)Cycling in Agriculture, Biochar, Plant-Plant Interaction, Below-ground Plant-to-Plant Signaling
Morgan Irons
PhD Student
Soil organic carbon stabilization, microgravity effects on carbon-mineral interactions, space agriculture, abiotic nitrogen immobilization in organic matter
Rachelle LaCroix
PhD Student
Soil organic matter persistence, molecular and microbial diversity
Shelby McClelland
Postdoctoral Associate
Land use and management effects on greenhouse gas emissions at continental and global scales
MPS Student
International Agricultural Development
Former Students and Staff
| Name | Degree/Position | Main field of research |
| Akio Enders | Researcher | Cryosectioning, Leland Pyrolysis Kiln, biochar characterization and overall experimental support |
| Aline do Amaral Leite | Vstng PhD student | Microbial dissolution of phosphorus in biochar made from poultry manure |
| Alyssa Kim | Postdoc | Biochar retention of N and P in circular bionuturient economy |
| Andrew Hubble | Postdoc | Pyrolysis and industrial biochar retention of N and P |
| Bing Wang | Vstng Schlr | Biochar retention of inorganic N |
| Binh Nguyen | PhD | Black Carbon decomposition |
| Biqing Liang | MS/PhD | Black Carbon and nutrient retention/Terra Preta SOM dynamics |
| Charles Hyland | MS | Dissolved organic nutrient dynamics in agroecosystems |
| Chih-Hsin Cheng | PhD | Black Carbon and charge dynamics |
| David Guerena | PhD | Long-term biochar effects on crop yield, nitrogen use efficiency; biochar erosion and leaching; biological N fixation with biochar under moisture stress |
| Dorisel Torres | PhD | Resource assessment for biochar stove systems in Kenya |
| James Kinyangi | PhD | Soil organic matter dynamics in tropical soils in Kenya |
| Itamar Shabtai | Postdoc | Soil organic matter stabilization – water and calcium |
| Ivan Ribeiro | Vistng PhD | Phosphorus adsorption and precipitation with biochar |
| Leonidas Melo | Vistng Scholar | Biochar-based fertilizers |
| John Recha | PhD | Nutrient and carbon exports from headwaters in Kenya as a function of soil degradation |
| Joseph Kimetu | PhD | Soil organic matter dynamics in tropical soils in Kenya |
| Julia Lena Dathe | Researcher | |
| Julie Grossmann | Postdoc | Water and C fluxes in forested watersheds in Northern Mato |
| Julie Major | PhD | Charcoal applications and soil fertility in Colombia |
| KAR Robison | Undergraduate | Sound-of-Soil art project (with Karine Bonneval) |
| Karen Heymann | PhD | Black Carbon quantification and dynamics |
| Kelli Roberts | Postdoc | Life cycle assessment of biochar systems |
| Lan Zhongdong | Sabbatical | Phosphorus leaching from manure |
| Laurel Lynch | Postdoc | Soil organic carbon stabilization, biodiversity |
| Lauren Taylor | Undergrad | |
| Leilah Krounbi | PhD | Nutrient recycling of human wastes using biochar technology |
| James Kinyangi | PhD | Soil organic matter dynamics in tropical soils in Kenya |
| Lydiah Gatere | PhD | Conservation agriculture in Zambia, crop yield, soil carbon |
| Marialuz Cayuela | Postdoc | Nitrous oxide emission reductions with biochar |
| Marie Zwetsloot | MS | Phosphorus forms in bone char, P availability and root traits |
| Mark Johnson | PhD/Postdoc | Water and C fluxes in forested watersheds and hydrophobicity in Northern Mato Grosso, Brazil |
| Mary Zhao | Undergrad | Biochar flammability |
| Pedro Medrano | Undergrad | |
| Rachel Hestrin | MS/PhD | Ammonia adsorption by biochar, nitrogen uptake by plants |
| Rebbie Harawa | PhD | Nutrient dynamics and budgets in agricultural watersheds in Southern Malawi |
| Robbie Coville | MPS | Agroforestry, temperate silviculture, climate-smart farm management |
| Saman Dharmakeerthi | Vstng Schlr | Priming of SOC by biochar |
| Shannan Sweet | Postdoc | Pyrolysis of dairy manure |
| Shelby Rajkovich | Undergrad | Biochar properties and crop yields |
| Shinjiro Sato | Postdoc | Phosphorus dynamics in manured soils of New York |
| Silene DeCiucies | MS | Priming of SOC by biochar |
| Stefan Jirka | Researcher | National Carbon accounting Ethiopia |
| Steinar Tveitnes | Sabbatical | |
| Sueng Han Woo | Vstng Schlr | Effect of feedstock and soil minerals on biochar mineralization |
| Susana Blum | Postdoc | Sulfur dynamics in soil |
| Tara Webster | Postdoc | Biochar and plant-microbe signaling |
| Thea Whitman | PhD | Biochar stability and carbon balance |
| Tianran Sun | Postdoc | Electrochemistry |
| Tomasz Falkowski | Postdoc | Pyrogenic carbon production in Mexican Milpa system |
| Verena Jauss | PhD | Black carbon distribution in soils of the United States |
| Wendy Lynn Schultz | Undergrad | Organic sulfur dynamics |
| Xavier Domene | Vstng Schlr | Biochar and soil fauna |
| Yuqing Ma | Vstng PhD student | SOC effects on crop yield |
| Zhongmin Dai | Vstng PhD student | Biochar and microbial biomass |
Former Minor Advisor Students
| Name | Major Advisor | Topic |
| Amaya Atucha | Ian Merwin | Nutrient dynamics in avocado plantations in Chile |
| Andres Berger Ricca | Susan Riha | Weed competition and modelling |
| Brendan O’Neill | Janice Thies | Microbial diversity in Terra Preta soils |
| Carol Schwendener | Erick Fernandes | Nitrogen release from tree pruning and litter in central Amazonian agroforests |
| Chandra Kumar Purohit | Ian Merwin | Nutrient dynamics in an apple orchard |
| Christienne Kuzcak | Erick Fernandes | Effect of earthworms on inorganic and organic P in soils of the central Amazon |
| Dan Clune | Janice Thies | Microbial dynamics in soils |
| Edward Yeboah | Soil organic matter in Ghana | |
| Helen Markewich | Alice Pell | Nutrient release from animal manures in Kenya |
| Hongyan Jin | Janice Thies | Microbial dynamics in biochar soils |
| Ilse Ackerman | Erick Fernandes | Termite effects on soil fertility |
| Ilse Ackerman | Erick Fernandes | Termite dynamics in a forest succession following degraded pasture in central Amazonia |
| John Beeby | Janice Thies | Microbial dynamics in biochar soils |
| Jose Juan Rosario | Terry Jordan | Paleoclimate in South America |
| Joshua Faulkner | Tammo Steenhuis | Phosphorus buffer strips |
| Julie Major | Toni DiTommaso | Weed dynamics on Terra Preta de Indio |
| Kate Ballantine | Rebecca Schneider | Ecology of restored wetlands |
| Kristina Schoening | Allison Jack | The Anthropology of waste in Gaza |
| Larissa Smith | Toni DiTommaso | Weed ecology of swallow-ward |
| Marina Molodovskaya | Tammo Steenhuis | Nitrous oxide emissions |
| Mark Slavens | Marty Petrovich | Nutrient leaching under turf |
| Meagan Cooke | Laurie Drinkwater | Biological nitrogen fixation and soil fertility in organic farming systems |
| Rob Nurse | Toni DiTommaso | Weed dynamics |
| Solomon Ngoze | Susan Riha | N and P dynamics in tropical soils |
| Steve Vanek | Laurie Drinkwater | Crop ecology in Bolivia |
| Ted Feldpausch | Susan Riha | Soil and biomass nutrient dynamics in a forest succession following degraded pasture in central Amazonia |