Fires make erosion more likely by burning away trees and shrubs that anchor soil and absorb runoff.大火烧光了可稳固土壤并吸收径流的树木和灌木，从而增加了水土流失的可能性。The cultivated field received not only its own share of rainfall but all of the runoff from the catchment.耕地不仅获得它自己那份雨水而且还接受集水区的全部径流。