Phytotoxicity of polymetallic mine wastes from southern Tuscany and Saxony

摘要: Abstract Restoration potential of mine wastes or approaches to improve soil conditions and ameliorate phytotoxicity on these sites may be simulated in standardized greenhouse experiments. Plants can cultivated side by materials from different origins dilution series with defined admixtures certain aggregates. Mine used the present study originated Fenice Capanne (FC, Tuscany, Italy) Altenberg (ALT, Saxony, Germany). Tailings Italian site contain high concentrations lead, zinc, arsenic sulphur while tin, wolfram, molybdenum lithium are highly elevated German waste. We tested growth responses five crop species analyzed various metals nutrients shoot evaluate toxicity FC waste found oilseed rape being most corn least resistant crop. Interestingly, accumulated seven times higher levels lead than without showing adverse effects productivity. In a subsequent comparison ALT waste, we buckwheat ( Fagopyrum spec.), fast growing genus that evolved mountain areas has been shown tolerant low pH metals. was more toxic substrate F. tataricum esculentum . However, lower material (10%) resulted stronger reductions proportions (25%) which primarily related slightly availability essential due admixture sand. These results confirm importance managing chemical physical characteristics wastelands call for development assisted reclamation prepare regular biomass production.