面对寸草不生的茫茫沙漠,大概人们很难把它和水稻联系在一起。其实,现在水稻已经种植在沙漠中了。当今土地沙漠化问题遍及整个世界,全球有三分之二的国家和地区受到影响。到本世纪末,全世界将有三分之一可耕作土地丧失其生产能力。因此,土地沙漠化问题,受到全世界的极大关注。在我国的北方有17万平 In the face of vast desert grass, it is probably difficult for people to link it with rice. In fact, rice is now planted in the desert. Desertification in today’s land is a problem all over the world, affecting two-thirds of the world’s countries and regions. By the end of this century, one third of the world’s arable land will lose its productive capacity. Therefore, the issue of land desertification has drawn great attention from all over the world. There are 170,000 in the north of our country