Weed challenge

摘要

South Australia Research and Development Institute's (SARDI) Dr Peter Hayman has warned farmers that rising levels of carbon dioxide (CO_2) and higher temperatures are set to increase weed problems. "Fanners face an array of changes cascading from theglobal climate shift that will require a whole range of adaptive management measures on the ground," Hayman told the recent f 5th Australian Weeds Conference. For example, models run by CSIRO suggest a warmer, wetter world but a drier southern Australia.