一、前言先进的科学技术如何转化为社会生产力,先进的林业生产技术如何能被广大林业职工和农民所接受,是林业技术推广工作者多年来一直急待解决的问题。工作实践发现,在林业技术推广中存在着这样一种现象:即在单纯地推广某一项林业先进技术时,尤其是一些收效较慢的营林技术,往往效果不好,有些技术的推广,虽由国家给予资助,也不易被接受。而当我们在推广某项营林技术的同时不仅在考虑生态效益、社会效益,而且在考虑到经济效益时,则 I. Preface How advanced science and technology can be transformed into social productive forces and how advanced forestry production technology can be accepted by forestry workers and peasants are the problems that forestry technology extension workers have been pressing for years. Work practice found that in the promotion of forestry technology there is such a phenomenon: that in the simple promotion of a forestry advanced technology, especially some of the less effective silviculture technology, often ineffective, some technology promotion, Although the state grants, it is not easy to be accepted. And when we promote a silvicultural technology not only in consideration of ecological and social benefits, but also in consideration of economic benefits,