近些年来,北京地区干旱少雨,降水总量减少,且分布不匀,严重影响了造林成活率。随着宜林地块优选造林完成,低山阳坡造林成为应造而难啃的硬骨头。造林以成活、保存、效益为目的,当今造林方法多样,单位面积投资多少不一,但根本目的还是要成活受益。几年来,通过造林实践,延庆林业 In recent years, the area of ​​aridity and precipitation in Beijing has been reduced, the total amount of precipitation has decreased and unevenly distributed, seriously affecting the survival rate of afforestation. With the optimal afforestation of the Yilin block completed, afforestation in the low mountain and sunny slopes has become a hard bones to be made. Afforestation in order to survive, save, for the purpose of efficiency, afforestation methods are diverse today, the unit area of ​​investment varies, but the fundamental purpose is to survive to benefit. In recent years, through afforestation practice, Yanqing Forestry