Among the services provided by Internet, intelligent access to information resources (IRs) seems necessary, in order to contribute to decision-making. Information management systems should recognize and register the contents of IRs for storage and treatment purposes due to their exponential appearances in the web; therefore it is necessary to develop systems that consider the contents of IRs whether they are stored locally or remotely. This paper describes an approach for managing heterogeneous IRs using forestry resources as case study. The approach builds a semantic forest memory for which a prototype system to validate results has been implemented.