论文部分内容阅读
大叶山杨是吉林市林科所从长白山地区的山杨种群中选育出来的优良变种,该树种具有生长迅速、成材早、耐寒、耐瘠薄、适宜在山地生长等优良特性。阜新地区为了丰富山地造林的树种资源,进行了引种育苗试验。结果表明,1 年生播种苗和2 年生移植苗均表现出原产地原种的优良特性,1 年生苗高和地径分别比省标高出80% 和53 % ,苗木合格率达94 % ;1 年生苗总干重大于标准40 .3% ,根茎的干重比达1 .56 ,比一般苗木高出42 % 。该树种对不同土壤类型有较强的适应性,但在不同土壤上生长差别较为明显,以沙壤土为最好。
Populus euphratica is a good variant of Linke from Jilin poplar population in Changbai Mountain area. It has the characteristics of rapid growth, early harvest, cold, barren, suitable for growth in the mountainous areas. Fuxin area in order to enrich the tree resources of afforestation in mountain areas, the introduction of seedling trials. The results showed that 1-year-old sowing seedlings and 2-year-old seedlings showed the excellent characteristics of original seedlings. The annual height and diameter of 1-year-old seedlings were 80% and 53% The total dry weight of the seedlings is larger than the standard 40.3%, the dry weight ratio of the rhizome is up to 1.56, 42% higher than that of the common seedlings. The tree species of different soil types have strong adaptability, but the growth difference in different soil is more obvious, sandy loam is the best.