我国近来全民炼钢,炼钢炉煤烟对附近树木的生长有严重的影响,因而必需研究防烟林营造问题。所谓防烟林者,即对于烟害有一定的抵抗力或能减轻烟害的为害性。根据国内外经验,能耐硫磺烟害并可在河南省栽植者,有如下树种:臭椿、樱桃、洋 Recently, the national steelmaking and smelting furnace soot have a serious impact on the growth of nearby trees. Therefore, it is necessary to study the problem of creating a smoke-proof forest. The so-called anti-smoking forest, that is, have a certain resistance to tobacco smoke or can reduce the harmful effects of tobacco smoke. According to domestic and foreign experience, able to tolerate sulfur smoke and can grow in Henan Province, the following tree species: Ailanthus, cherry, ocean