整地是造林前的一项重要工序。整地效果的好坏,直接关系到造林的成效。因此,应重视造林前的整地工作。整地的时间,在一般情况下,应做到提前整地。即在造林前的3～6个月或提前一年进行整地。流动沙地不整地,半固定沙地秋季可随整地随造林。在干旱地区,最好在雨季前整地,这样可以积蓄较多的水分。 Soil preparation is an important process before reforestation. The effect of site preparation is good or bad, which is directly related to the effectiveness of afforestation. Therefore, we should pay attention to the preparation work before afforestation. Preparation of the time, under normal circumstances, should be prepared in advance. That is, 3 to 6 months before planting or one year in advance for site preparation. Unbundled mobile sand, semi-fixed sand with the whole land in autumn with afforestation. In arid regions, it is best to soil preparation before the rainy season, so that more water can be saved.