常見例句雙語例句Many grasslands, especially in the wetter areas, are naturally maintained by grazing mammals and, to some extent, fire.許多草原,尤其是濕潤地區(qū)的草原,借助哺乳動物的 牧草行為以及一定程度的 火災來維持生態(tài)平衡。It suggests other measures in forest fire prevention which integrated with fire line, such as constructing mixed forest, grazing in forest.最后,提出了與防火線建設相結合的其他措施,如營造針闊混交林、林內放牧等。There are many perturbation factors on Zhalong wetlands , they include climate, flood pulsing , fire, project construction, farming and grazing .扎龍濕地的擾動因子有氣候、洪水、火、水利工程、農業(yè)活動等因子。權威例句Road-building, stock-grazing and fire suppression have disturbed the natural life cycle of the woods, which are now clogged with young growth.ECONOMIST: Managing the West’s forests 返回 grazing fire