Johannes Lehmann

Properties of Surface Functional Groups of Black Carbon from Historic Charcoal Blast Furnaces

Lead Institution

Cornell University

Principal Investigator

Johannes Lehmann

Project type

Capability Research

In recent years, geochemical and biological properties of black carbon (BC) have received increasing attention owing to its potential importance in a wide range of biogeochemical processes. Although…

Effects of Temperature and Time (130 Years) on Surface Charges and Chemical Properties of Black Carbon

Lead Institution

Cornell University

Principal Investigator

Chih-hsin Cheng

Project type

Exploratory Research

In recent years, geochemical and biological properties of black carbon (BC) have received increasing attention owing to its potential importance in a wide range of biogeochemical processes. BC refers…

Biqing Liang's Proposal

Lead Institution

Cornell University

Principal Investigator

Biqing Liang

Project type

Exploratory Research

Black carbon (BC) can play a key role in a wide range of biogeochemical processes. Enrichment of stable forms of BC was found leading to higher soil cation exchange capacity and nutrient retention in…

Investigating the mechanisms for negative priming of soil organic carbon by pyrogenic carbon using NanoSIMS and LA-AMS

Lead Institution

Cornell University

Principal Investigator

Johannes Lehmann

Project type

Large-Scale EMSL Research

Reduced turnover rate (often referred to as "negative priming") of soil organic carbon (SOC) by pyrogenic black carbon (pyC) has the potential to have dramatic long-term effects on soil…

Investigating mechanisms for negative priming of soil organic carbon by pyrogenic carbon using NanoSIMS and LA-AMS

Lead Institution

Cornell University

Principal Investigator

Johannes Lehmann

Project type

Large-Scale EMSL Research

Reduced turnover rate (often referred to as “negative priming”) of soil organic carbon (SOC) by pyrogenic black carbon (pyC) has the potential to have dramatic long-term effects on soil carbon stocks…

Does microbial consumption of plant litter produce diverse pools of dissolved organic matter?

Lead Institution

Cornell University

Principal Investigator

Johannes Lehmann

Project type

Exploratory Research

Microbial consumption and transformation of plant litter is becoming a widely recognized control on soil organic matter (SOM) persistence. Although the reasons for the increased resiliency of…

EMSL Science Overview

Johannes Lehmann

Projects

Properties of Surface Functional Groups of Black Carbon from Historic Charcoal Blast Furnaces

Effects of Temperature and Time (130 Years) on Surface Charges and Chemical Properties of Black Carbon

Biqing Liang's Proposal

Investigating the mechanisms for negative priming of soil organic carbon by pyrogenic carbon using NanoSIMS and LA-AMS

Investigating mechanisms for negative priming of soil organic carbon by pyrogenic carbon using NanoSIMS and LA-AMS

Does microbial consumption of plant litter produce diverse pools of dissolved organic matter?