In a rainshadow desert, ranging from sub-Mediterranean areas to extremely arid environments, the vegetation was studied on comparable plots along roadsides and in the surrounding area. The uniqueness of roadside vegetation and flora is shown by using indices and measurements which allow a comparison along the climatic gradient. Biomass and species diversity are distinctively higher and the chorological composition is different near roads, this at least under an arid regime. The reasons for these differences are discussed based on investigations of site conditions. Increased water runoff and more favorable soil conditions seem to be decisive in this respect.
All Science Journal Classification (ASJC) codes
- Agricultural and Biological Sciences(all)