油松雨季直播造林技术赵铁栋油松雨季直播造林具有省工、省时、工效高、成本低等优点。其主要技术要点如下：一、反坡整地。在造林地上随山就势沿等高线按１．５×１．５米的株行距进行鱼鳞坑整地。鱼鳞坑规格为长５０厘米、宽４０厘米、深３０厘米，品字形排列，做成外噘... Direct seeding afforestation technique of Pinus tabulaeformis in rainy season Zhao Tiedong Pinus tabulaeformis direct seeding afforestation has the advantages of saving labor, saving time, high work efficiency and low cost. The main technical points are as follows: First, anti-slope preparation. In the afforestation on the mountain along the contour along the contour line by 1.5 × 1.5 m spacing of fish scale pit site preparation. Scales pit scale for the length of 50 cm, 40 cm wide, 30 cm deep, arranged in the shape of a font, made of 噘 ...