摘要
论述了优树选择应先选择优良林分,在优良林分中选择优良单株的原则。比较了3~5株大树法选优法,但以3株法为最好;选择年龄26~35 a为好。
Superior trees selection with Pinus tabulaeformis is based on the principle of selection of superior stand first and then selection of superior trees out of the stand.Comparison of three or five trees is followed,with their age at 26-35.
出处
《陕西林业科技》
2009年第6期81-83,共3页
Shaanxi Forest Science and Technology
关键词
油松
优良林分
优树
优树选择
Pinus tabulaeformis
superior trees
selection of superior trees
