The Importance of Municipal Waste Landfill Vegetation for Biological Relevance: A Case Study

The vegetation of municipal solid waste (MSW) landfills and its ecosystem functions are often overlooked, despite their importance for enhancement and stabilization of biodiversity. The selected landfill is located in the cadastral area of Bystřice pod Hostýnem (Czech Republic). A total of 92 plant species were recorded during a two-year vegetation assessment at three sites of the MSW landfill. The species Lolium perenne, Arrhenatherum elatius, and Poa pratensis significantly dominated the restored parts of the landfill. The species Urtica dioica, Chelidonium majus, and Atriplex sagittata were dominant in the actively used parts of the landfill. Chenopodium album, Atriplex sagittata, and Amaranthus retroflexus were dominant in the composting zone. The vegetation of MSW landfills represents an ecologically important element with the ability to increase the biodiversity of the landscape. Nevertheless, there are also risks, e.g., the possibility of contamination of food chain with hazardous substances from waste. The spread of diaspores of certain species across the landscape and the spread of non-indigenous plant species can have negative ecological consequences. MSW landfills are often perceived only as technical facilities that solve the environmental problem of waste management. However, our results bring a new perspective on landfills as an environment for the biosphere.