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多年来,油松造林一直沿用裸根苗栽植。容器苗、带坨苗近年虽有所发展,但比例小;裸根苗仍不失为主要造林方法,在今后相当长的时期内也会是这样。这种造林方法因苗木蒸腾失水,特别是苗根失水,往往导致造林失败。目前造林地又多为干旱阳坡,连续几年的干旱给造林工作带来极大困难,致使造林成活率很低。为了解决这个问题,1985年我们选择极干旱瘠薄的阳坡,对裸根苗采取几种特殊处理进行造林试验,现报告如下:
Over the years, pine afforestation has been used nude root seedlings planted. Container seedlings, with Tuo seedlings in recent years, although the development, but a small proportion; bare root seedlings are still the main afforestation methods, in the future for a long period of time will be so. This method of afforestation often results in failure of afforestation due to transpiration and water loss of seedlings, especially water loss of seedlings. At present, most of the afforestation land is also arid and sunny slopes. For several years, the drought has brought great difficulties to afforestation, resulting in low afforestation survival rate. In order to solve this problem, in 1985 we chose extremely dry and infertile sunny slopes, bare root shoots to take several special treatment afforestation test, are as follows: