论文部分内容阅读
当前在人类社会所面临的各种挑战中,环境是一个共同的严峻的课题.酸雨、水质恶化、温室效应、臭氧层破坏、物种减少、土壤沙漠化、森林资源渐趋枯竭等等已成为全球性的问题,这些问题不仅阻碍了社会和经济的发展,甚至威胁到人类的生存.近年来我国自然灾害发生频率加快了,这同人类活动,尤其是森林、草原等被破坏是分不开的.
Currently, the environment is a common and serious issue in the challenges faced by human society. Acid rain, deterioration of water quality, greenhouse effect, destruction of the ozone layer, reduction of species, desertification of the soil, and depletion of forest resources have become global Problems, these problems not only hinder social and economic development, and even threaten the survival of human beings. In recent years, the frequency of natural disasters has accelerated in China. This is inseparable from the destruction of human activities, especially forests and grasslands.