The agriculturally used area in Baden-Württemberg comprises approximately 1,418,500 hectares, of which 816,100 hectares are arable land. Fields with species-rich wild herbaceous flora have declined extremely and now belong to the highly endangered biotope types. However, the extent to which programs such as the Special Program for Strengthening Biodiversity Baden-Württemberg, FAKT or the Landscape Management Directive, as well as the changed framework conditions, promote the conservation of biodiversity in agricultural landscapes and, in particular, the protection of rare arable wild herbs, is as yet little known, and the causes for the significant decline in recent years are still insufficiently analyzed.
Therefore, the aim of this project is to investigate the success of the above-mentioned programs with regard to the conservation of endangered arable wild herbs and the effects on problem species, as well as to identify further management and site influences, thus providing a basis for the optimization of the above-mentioned programs and legal framework. The focus is to survey arable wild weeds in the context of different land use parameters to allow conclusions to be drawn about the transformation levers parameters, feedbacks and design.
The analysis will take place in agricultural landscapes that contain "bright spots" and will be selected in close coordination with other PhD projects (especially III and IV) to enable a joint evaluation.
