不同整地技术对黑龙江西部石质荒山抗旱造林效果的影响

Effects of Different Land Preparation Techniques on Drought-resistance and Afforestation in Western Liaoning Province

通过多年试验探索及对生产实践的总结,形成了针对不同石质荒山类型比较成熟的造林整地技术,其中掘壕整地、石缝机械整地、环山拉沟整地、鱼鳞坑整地四种整地方式较为典型,成效显著。经试验测定与生产技术调查,结果表明:这些整地方式通过不同程度地改善植苗区土壤结构及水分养分条件、微域小气候条件,显著提高了造林质量,均使造林成活率达90%以上,并不程度地促进了造林初期林木生长,取得了显著的抗旱造林效果。

Through trial exploration production-practice summary for many years,a relatively mature afforestation soilpreparation technology has been developed for different types of rocky barren hills. Among them,four types of soil preparation technologies（trench,drilling in stone-crevices,trench around mountains and fish-scale-pit） are relatively typical,with significant results. After the test and production survey,result shows that these soil preparation technologies improve the quality of afforestation by significantly improving the soil structure,water nutrient conditions,and micro-microclimate conditions in the seedling planting area,and the planting survival rate can reach over 90%. It not only promote the growth of forest trees at the initial stage of afforestation,but also achieve significant drought-resistance afforestation effects.