| 摘要: |
| 在陕西周至、永寿、黄陵及延安进行了奥地利黑松引种造林试验。初步结果表明，奥地利黑松对引种地气候表现出较强的适应性，造林平均成活率达到73.7%；树高生长量与海拔、≥10 ℃积温和年降雨量密切相关;选用2年生容器苗在阳坡造林可提高林木生长量；4年生奥地利黑松最大平均树高和最大平均地径生长量分别超过当地对照油松15.16%和8.4%。初步认为，奥地利黑松适于在陕西秦岭以北、延安以南生长，特别在黄土高原区表现良好，值得推广。 |
| 关键词: 奥地利黑松 引种试验 造林 |
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| 基金项目:国家林业局“948”引进项目(2000-04-03) |
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| Priliminary study on plantation test of Pinus nigra var.austriaca introduced into Shaanxi |
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| Abstract: |
| Plantation test of Pinus nigra var.austriaca was carried out in 4 sites of Shaanxi.The results showed that species demonstrated good adaptation to site conditions of this area,and the survival rate of plantation exceeded 73.7%.The height was closely correlated with altitude,≥10 ℃ accumulate temperature and annual precipitation.To select south slope and vessel seedling of 2 year-old could improve growth increment of the P.nigra.The height and diameter of 4 year-old were more than those of local species Pinus tabuleaformis by 15.16% and 8.4% respectively.It is initially believed the areas from north of Qinling mountain to south of Yan'an city are suitable for the introduction especially in Loess Plateau.Pinus nigra desenves the introduction extension,especialy on Loess Plateau. |
| Key words: Pinus nigra var.austriaca introduction plantation |
