Study on Key Technology of Artificial Vegetation Restoration in Sandy Land of Northern Hebei Mountainous Area
In order to improve the survival rate of artificial afforestation in sandy land,the experiments on the effects of dif-ferent land preparation methods,seedling types and water conservation measures on the survival rate of artificial afforesta-tion in sandy land in northern Hebei mountainous area were carried out.The results showed as follows:the container seed-lings afforestation of Pinus sylvestris var.mongolica was used in the vegetation restoration in sandy land of the northern Hebei mountainous area,and the trenching and land preparation were carried out in advance;after planting,the water reten-tion effect of film mulching was obvious and the survival rate was high.Combined with the analysis results,a regression model of survival rate with seedling type,land preparation method and water conservation measures was constructed,which effectively explained the reasons for 88.9%change in survival rate..