樟子松种源试验林生长情况调查

通过对樟子松不同种源试验林高生长和径生长的调查得知,地理种源不同,高生长存在着显著差异,一般人工林种源生长好于天然林种源。樟子松经过几十年的引种驯化是能够适应当地的环境条件,形成稳定种群。造林时,首先应选择种子产地土壤、气候条件与本地相似的地区调拨种子。若本地自然条件与种子产地相差较大,应选择经过长期引种已形成稳定种群的种子产地调拨种子,如9007(净月潭)、9014(章古台)、9006(高峰)、9012(青山)号产地的种子。

Investigation of Growth of Trial Forests of Provenance of Pinus sylvestris var.mongolica

By investigation of height growth and growth of DBH of Pinus sylvestris var.mongolica in different provenance test site, it was known that height growth had significant differences with different geographical provenance and the growth of general provenance of forest plantation was better than that of natural forests.Pinus sylvestris var.mongolica is able to acclimatized to local environment and form sable provenance by several decades of introduction and acclimatization.The region with which the locality soil of seeds,climatic condition similarities should be selected to allocate and transfer the seeds for forestation.If the local natural condition and locality have significant differences,seeds locality introduced by a long-time and formed stable provenance should be selected for allocating and transferring the seeds,for example,the local seeds of No.9007(Jingyuetan),No.9014(Zhanggutai), No.9006(Gaofeng),No.9012(Qingshan).