According to thechangetrendofrainfall in Weihe RiverBasinin Shaanxi, the paper established the scenarioanalysismethod to predict the changes of runoffusingdistributedhydrologicalmodel.
Those very herbicide-resistant plants, now grown on more than 220 million acres annually worldwide, have spurred the adoption of more environment-friendly herbicides and agricultural practices--changes that have markedly reduced soil erosion, the runoffof agricultural chemicals and carbon dioxide emissions, and increased yields.