目前我省沙漠面积11850万亩,其中大部分分布在交通不便,人烟稀少的边远地区。由于自然和人为因素的影响,每年正以100万亩的速度扩展。受劳力和经费等条件的限制,治理速度远远赶不上沙化速度。如何使大面积沙漠,特别是危害性较大的流动沙地,在较短时间内得到控制和治理,是当前治沙战线上急待解决的难题。而飞机播种,造林、种草,就是在无植被或植被稀疏的干旱、半干旱沙区,模拟天然更新的一种大 At present, the desert area in our province is 118.5 million mu, most of which are located in remote areas where traffic is inconvenient and sparsely populated. Due to natural and man-made factors, it is expanding at an annual rate of one million mu. Due to labor and financial constraints, the pace of governance is far behind the rate of desertification. How to control large areas of deserts, especially the more dangerous ones, in a relatively short period of time is an urgent problem to be solved on the current sand control front. The aircraft sowing, afforestation, planting grass, is in the absence of vegetation or vegetation in the arid, semi-arid sand, simulating a large natural regeneration