防风固沙是干旱、半干旱地区为了保持水土、防止沙尘暴等恶劣天气而进行的一种生态建设活动。
为了有效地防风固沙，近些年在这里成功地营建了油松林带。
Recent years has witnessed the success of establishing Pinus tabulaeformis tree-belt in purpose of wind-breaking and sand-fixing in this area.
它在当地经济价值、防风固沙环保方面均处于无以取代的地位。
Its status in economic value and fixing-sand and so on was incomparable.
柠条属于沙生灌木的一种，不但是防风固沙的优良树种，而且还具有很高的经济价值。
Caragana is a sort of sandy shrub, it not only protects environment, but also has economic value.
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