The interim use (IU) module gives the user a first idea on the possibilities for interim uses on a certain landfill. Based on the output of the IU module, a further assessment can be performed for the interim use types that come forward as the most promising for a specific landfill.
When the output of the IU module gives promising results for the production of biomass on the landfill site, the results of the New-C-Land Interreg project can be consulted. The New-C-Land project created a website where producers/users of biomass and owners of contaminated sites (including landfills) can connect. The website 'sites for biomass' contains a map that visualises all registered abandoned sites that have a potential for biomass production, as well as biomass users. This stimulates the development of local biomass sectors in cross-border areas. The information is accessible for Belgium and the North of France.
When afforestation or nature development comes forward as the most suitable interim use, the Afforestation Decision Tree can be used to assess the feasibility of afforestation, based on the characteristics of the landfill. After performing a preliminary soil investigation, a soil expert should be able to ascertain if nature (re)growth (in particular afforestation) is possible and under what conditions. For this screening, a decision tree can be followed by taking various criteria into account. Ideally, the screening can be performed on the basis of a desk study and the data that has already been included in a report of an exploratory soil investigation, without additional fieldwork or research efforts. Aspects that are important to develop such scheme, are the characteristics of the landfill itself and criteria related to forest planting and forest development in the longer term. It should be noted that this decision tree does not intendto already make choices in tree and shrub species, planting schemes, management or maintenance. However, it tries to provide as many elements as possible in order to be able to make the right choice.