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一九七八年我们对提高油松直播造林成活率的几项措施进行了试验,现将试验的目的、措施方法和效果作一初报。一、试验目的油松是我场主要的造林树种,也是我国北方广大地区的主要造林树种之一。直播造林是长期广泛应用的一种造林方法,它具有操作容易,便于发动广大群众进行造林,种子幼苗一开始就与造林地的环境结合适应的优点。所以长期以来是人们喜欢采用的一种造林方法。我
In 1978, we conducted several tests to improve the survival rate of direct seeding and afforestation of Pinus tabulaeformis. Now we will make a preliminary report on the purpose, method and effect of the test. First, the purpose of the test Pine is my main afforestation tree species, but also one of the major afforestation species in vast areas of northern China. Direct afforestation is an afforestation method that has been widely used for a long time. It has the advantages of easy operation and easy mobilization for mobilizing the broad masses of the people to adapt to the environment of the afforestation land. So for a long time people like to use a reforestation method. I