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在我国暖温带宝应运河堤碱性土壤上引种火炬松、湿地松、短叶松和晚松,9年生时全部进入速生期,13年生平均树高12.31m(火炬松)~10.22m(晚松);胸径18.7Ccm(火炬松)~12.63em(晚松),均超过了南方引种试验林标准。高、径年生长节律亦与亚热带地区相似。不同树种问生长差导极显著,火炬松>湿地松(美国佑治亚种源)>湿地松(广东台山种源)>短叶松>晚松,保存率都很高,但在不同树种间差异不显著,说明4种国外松都能适应宝应运河堤及相似地区生长。引种成功的关键技术是采用容器苗带土(松菌根真菌)造林。
Pinus canadensis, Pinus sylvestris and Pinus thunbergii were introduced on the alkaline soil of Baoying canal embankment in the warm temperate zone of China. All of the 13-year-old trees were 12.31m (loblolly pine) ~ 10.22m (Late loose); DBH 18.7Ccm (loblolly pine) ~ 12.63em (late loose), all exceeding the standard of introduction of experimental forests in southern China. High, annual growth rhythm is also similar to the subtropical regions. The differences of growth and differentiation were very significant between different tree species. Pinus taeda> Pinus elliottii> Eutrophic Asia> Pinus elliottii (Taishan provenance)> Pinus thunbergii> Pinus tabulaeformis was the best, but the difference was significant among different species Not significant, indicating that 4 kinds of foreign pine can adapt to Baoying canal embankment and similar areas grow. The key technology for successful introduction is the use of container seedling soil (fungus mycorrhizal fungi) afforestation.