毛乌素沙地引种樟子松生长特性的研究

Research on the Growth Characteristics of the lntroduced Pinus sylvestris var. in Maowusu sandy Land

毛乌素沙地引种樟子松生长特性的研究结果表明 ,樟子松在该地区的适应性强 ,生长快 ,树高、胸径及材积的速生期分别在 4— 1 5年、6— 1 5年及 9— 2 1年。根据樟子松的生长特性 ,通过浇水灌溉等抚育措施 ,提高樟子松的成活率和发挥早期快速生长潜力更为重要 ,同时樟子松的生长比油松好 ,在该地区防风固沙林建设中樟子松值得大力推广 。

The result showed the growth Characteristics of the introduced pinus sylvestris var Maowusu,pinus sylvestris var. in this area has high adaptability and fast growth speed.The rapid-rape-period of the tree height (H),the diameter at breast height (DBH) and volume are during 4-15 years,6-15 years and 9-21 years,According to those characteristics,the survival rate of afforestation should be furtherly increased,such as developing its rapid potential growth in early stage by some nurturing measures like irrigation. Mean-while,because the growth of the tree is better than Chinese pine,the planting of pinus sylvestris var. to structure the sand -break woods in this area should be wildly recommended and replace the Chinese pine and poplar gradually.