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文冠果在我国北方广大地区有野生分布,由于各地区土壤,气候条件的差异,长期在各种自然条件和人为活动的影响下,各种源的林分形成不同程度的种内地理变异,这种地理上的差异,表现出不同的经济性状和生产力的高低。我们于一九七八年引进了一些地区的种子进行育苗,观察苗期生长量的差异,进而进行造林试验。研究不同种源在经济性状和生产力上的差异及在我地区的适应性,选出在我地区造林适应性强产量高的种源,为确定种子调拨范围提洪依据。收集不同地区种源苗木做为个
Due to the differences of soil and climatic conditions in different regions, the species of Arboretum glauca have wild distribution in many areas of northern China. Under the influence of various natural and man-made activities, This geographical difference, showing different economic traits and the level of productivity. In 1978, we introduced seed from some areas to observe the differences in seedling growth, and then conducted afforestation experiments. To study the differences in economic traits and productivity of different provenances and their adaptability in our region, select provenances with high yield and adaptability in afforestation in my area, and provide evidence for determining the scope of seed transfers. Collect provenances and seedlings from different areas