Sandstorm is a type of weather phenomenon with great damage.It accelerates land desertification,but also is the form of land desertification developed to a certain degree.In recent years,the tendency of the vegetative cover was from bad to worse in the Western China,the area of desertification was increased year by year,sandstorm occurred more frequently.According to this situation, it puts forward five countermeasures,i.e,comprehensive control,strengthening research,perfecting legal system,increasing input...
修改评论