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纵观世界各国植物固沙历史,几乎所有国家都程度不同地存在因固沙植物选择不当而招致失败的教训。欧洲国家确定海岸沙丘的适宜树种,经历了数百年的摸索。我国解放以来在固沙植物的选择上也存在着盲目性,因而导致一些沙区造林不见林,造成人力、物力的浪费。选择适宜的固沙植物,是进行植物固沙的基础,应当予以高度重视。影响植物在流沙上生长的自然因素较多,但主要的、限制性的因素有三:一是沙丘的流动性,二是干旱,三是贫瘠。天然分布在沙区的各种植物,是对恶劣的环境条件长期适应的结果,其形态结构和生理机
Looking at the history of plant sand fixation in various countries in the world, the lessons of unsuccessful attempts at planting sand-fixing plants to varying degrees in almost all countries exist. European countries to determine the appropriate species of sand dune coast, after hundreds of years of exploration. Since the liberation of our country, there has also been blindness in the choice of sand-fixing plants, which led to the lack of afforestation in some sandy areas, resulting in the waste of manpower and material resources. The selection of suitable sand-fixing plants is the foundation for sand-fixing plants and should be given high priority. There are many natural factors that affect plant growth on quicksand, but there are three main and restrictive factors: one is the fluidity of sand dunes, the other is drought and the third is barren. Naturally distributed in the sandy area of a variety of plants, is the result of long-term adaptation to harsh environmental conditions, the morphological structure and physiology