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几年来,我们在固定、半固定沙丘上营造了大面积的樟子松,成活生长良好。根据樟子松耐旱、耐寒、耐贫瘠、根系发达、生长快等特点,沙丘造林采取了以下技术措施。一、整地。在一般平缓或起伏不大的固定沙丘地上进行带状整地,带宽60～80厘米,带距80～100厘米,带的设置与主风方向垂直。地势平坦处可全面整地,并及时进行机械造林。人工造林可采取穴状整地,穴的大小为1×1米,深度15～20厘米;或只临时“抢草皮”,深4～5厘米。二、造林方法。春雨秋三季均可造林。密度为3×1米或8×0.75米。在每个小班
In recent years, we have built a large area of Pinus sylvestris on fixed and semi-fixed sand dunes, and have survived well. According to the drought tolerance of Pinus sylvestris, cold, poor resistance, developed root system, rapid growth and other characteristics, dune afforestation has taken the following technical measures. First, soil preparation. In the general gentle or undulating fixed sand dune ground strip, the width of 60 to 80 cm, with a distance of 80 to 100 cm, the band set perpendicular to the main wind direction. Flat terrain can be a full site preparation, and timely mechanical reforestation. Artificial afforestation can take acupoint preparation, the hole size of 1 × 1 m, depth of 15 to 20 cm; or only temporarily “grab the turf,” deep 4 to 5 cm. Second, afforestation methods. Spring rain autumn three seasons can be afforestation. The density is 3 × 1 meter or 8 × 0.75 meter. In every small class