摘要
在松嫩平原苏打盐碱地上进行小果白刺造林试验，结果表明：在pH值为9．0-11．0的重盐碱地，当年造林成活率平均为83．1％，4a生造林保存率为78．2％；以pH值9．5—10．0的林地表现最好，平均成活率与保存率分别为90．3％和87．3％。每株施腐熟农家肥1．0kg，4a生平均单株结果量为3．60kg，是对照结果量的3．60倍；不同造林密度的覆盖率有一定差异，初植密度为1m×2m的4a生林地的覆盖率可达到90％。
A trial of planting Nitraria sibirica in soda saline - alkali soil of the Songnen Plain was conducted. In heavy saline - alkali soil （pH 9,0 - 11.0）, the average survival rate of N. sibirica was 83.1% at the first yare and preservation rate was 78.2% at the fourth year. The best performance for forest growth was observed in soil with pH 9.5 - 10.0, with an average survival rate of 90.3% and preservation rate of 87.3%. With application of 1 kg fertilizer for each tree, the bearing quantity of individual 4 - year- old tree reached 3.6 kg, which is 3.6 times higher than the control. The coverage of forest with different planting densities had a certain variation. The coverage of 4 - year - old stand, with an initial planting density of 1 m × 2 m, reached 90%.
出处
《吉林林业科技》
2009年第2期11-13,共3页
Journal of Jilin Forestry Science and Technology
关键词
小果白刺
苏打盐碱地
造林
Nitraria sibirica
soda saline- alkali soil
afforestation
Songnen Plain
