生态因子对油松飞播造林成苗影响的研究

Effect of Ecological Factors on the Survival of Aerial Seeding Plantation

以植被、土壤、土层厚度、坡向和坡位为主,分析其对飞播造林成苗的影响,结果表明:植被、土壤、土层厚度、坡向是影响油松飞播造林成苗的主要生态因子,坡位也是极其重要的生态因子。综合分析最佳组合生态环境,即以植被盖度0.3-0.7,土壤为砂壤土,土层厚度在61厘米以上的阴坡或半阴坡为最佳生态环境组合。

With vegetation,soil types,depth of soil,slope aspect and slope position as the main factors,effect of them on aerial seeding afforestatoin were analyzed.The result show that vegetation,soil types,depth of soil and slope aspect are main ecological factors influencing the survival of aerial seeding afforestation.Slope position is also important factor.The optimum combination of ecological factors are vegetation coverage at 0.3-0.7,loam soil over 0.61m deep plus shady slope or semi-shady slope.