In Québec, the relationship between ecology and land use is still tenuous. Government legislation, after an initial conservationist approach, has only recently incorporated some elements of ecological planning. Large development projects, in Québec, have generally not profited from ecological studies that they had sponsored. A project of the Centre de recherches écologiques de Montréal (CREM) is developing an interactive approach where ecosystem mapping permits to identify the land capabilities and suitabilities in addition to the constraints, although this approach will not, by itself, establish resource allocations.