From dump soil to productive site

Soils, as the central basis of life for all organisms, are subject to massive intervention in the context of industrialised raw material extraction and other construction activities. Historically grown, natural soil properties and functions are lost within a very short period of time and can only be restored in the long term through adapted recultivation measures. The focus here is on the quickest possible accumulation of humus while at the same time stabilising the raw soil structure, which tends to compact easily in post-mining. In addition, the soil water balance plays a key role for plant sites that will be used and produced in a variety of ways in the future.

A core area of the research work of the FIB e.V. is therefore concerned with the further development of fertilisation recommendations in interaction with already established topping crop rotations, which are geared to the diversity of tipping substrates, and their long-term effects on chemical and physical soil properties. Also under consideration is the use of novel humus fertilisers, so-called soil conditioners, based on refined lignite, biochar and biochar substrates to improve the nutrient and water storage capacity of the predominantly sandy and infertile new land soils.