Geert De Blust is an ecologist / landscape ecologist and spatial planner, particularly interested in the interrelations between the general ecological functioning of an area and its spatial development (history).
In this respect, work has been and is done related to the assessment of the ecological input in agricultural land re-allotment projects; the landscape ecological basis for land development; monitoring of changes in land use; biodiversity and environmental qualities in rural areas; the definition of ecodistricts as the spatial frame for land and environmental policy; the description of ecological networks; the study of nature based solutions for climate change adaptation and ecosystem services as a way forward towards multifunctional land use. His expertise was and is used in academic education, publications and in different advisory boards.