Climate change effects on plant biodiversity in agroecosystems:
Agricultural landscapes are important land use systems and provide habitats for a high number of plant species. These include crop species and cultivars, respectively, and wild plant species including weeds, growing on the cultivated areas as well as other plant species on the non-cultivated areas.
In addition to loss and overexploitation of habitats and impacts of pollutants, climate change is now being regarded as an additional risk for the decline of plant biodiversity in these landscapes.
Climate change is impacting plant biodiversity directly by affecting plant growth, vigour and plant phenology and species distribution in the landscape. Indirect effects of climate change result from climate change mitigation measures such as bioenergy cropping as well as from changes in agricultural land use (species and cultivar selection, crop rotation and management adjustment) in order to adapt agriculture to climate change.
Both ways may exert either positive or negative effects on plant diversity as shown by several examples.