冀北山地地处蒙古高原南端,北部有浑善达克和科尔沁两大沙地,早在一千年前就开始沙化。沙化严重的地段治沙造林的难度很大。为此,我们从1990年开始,在塞罕坝三乡林场沙化较重的山地阳坡栽植黄沙柳,初步试验成功。起到了固沙、改良土壤的作用。主要技术介绍如下: 1、整地。沙地风蚀严重,故应随整地随造林。宜采用大穴整地方式,每亩74穴,品字型配置,穴规格长、宽、深为0.8米、0.6米和0.5米为宜,坑下沿设挡水埂。 Hebei mountainous area is located in the southern tip of the Mongolian plateau, north of Hunshandake and Horqin two sand, as early as a thousand years ago began to desertification. Severe desertification sand control afforestation is very difficult. To this end, we have started the trial of yellow sand weeds from the sunward slope of the heavily sandy mountainous areas in Sangxiang Forest Farm, Saihanba since 1990. Played a sand, improving the role of the soil. The main technical introduction is as follows: 1, site preparation. Severe wind erosion in the sand, it should be accompanied by land preparation afforestation. Should adopt a large site preparation, acre 74 points, font configuration, hole specifications long, wide, deep 0.8 meters, 0.6 meters and 0.5 meters is appropriate, pit along the block water 埂.