Terra Preta soils contain much higher amounts of carbon that other soils in the Amazon region and contribute thereby to carbon sequestration. The suggestion has been made to recreate such soils (Terra Preta Nova) where carbon sequestration can be combined with agricultural sustainability.
Together with project #4 the project will assess potential trade offs between agricultural sustainability and productivity and carbon sequestration and link these data in a decision model that could affect policy makers and institutional discourses when scaling up local Terra Preta Nova projects. Together with project #4 it provides a framework for further questions such as: To whom would benefits (agricultural production, carbon sequestration) accrue? Who would decide about quantities and rates of charcoal addition to such soils? Who decides in cases there is a trade off between soils as carbon sinks and Terra Preta Nova soils as sources for sustainable agriculture?