由于气候的变化和生态环境的破坏，我国北方各省都有沙进田退的现象，沙漠化面积逐渐扩大，田地面积逐渐减少。怎样使沙漠变良田呢？我认为，除了植树造林，种经济作物和种草以外，还可以埋沙造田。其方法是：１、凡是厚度在１米以内的沙漠，沙漠底下就是被覆盖的田地，在沙漠 Due to the change of climate and the destruction of the ecological environment, all the northern provinces of our country have the phenomenon of desertification into the fields, with the area of ​​desertification gradually expanding and the area of ​​fields gradually decreasing. How to make the desert arable land? In my opinion, in addition to planting trees and planting cash crops and planting grass, we can also lay sand and make land. The method is: 1, where the thickness of less than 1 meter in the desert, the desert is covered under the field, in the desert