樟子松是营造速生用材林、各种防护林的重要树种,使用大坑整地大苗造林技术对于改善林分有显著效果,在改造退化林和低效林的过程中发挥着至关重要的作用。基于此,介绍樟子松大坑整地大苗造林的优点以及在造林中应注意的问题,并对造林后的管理措施予以阐述,以供相关部门参考。横山县位于陕西省北部,毛乌素沙漠的南缘,位于东经108°65′~110°02′和北纬37°22′~38°74′,属于温带大陆性季风半干旱草原气候。总国土面积为4 333 km2,总人口至少33万。境内河流众多,水量充沛,地貌以泸河、无定河为界,分为2部分:北部风沙草滩区和南部丘陵沟壑区。地势的分 Pinus sylvestris var.mongolica is an important tree species for growing fast-growing timber forests and various shelter forests. The large-scale seedling afforestation technique using Taikeng has a significant effect on improving stand, and plays a crucial role in transforming degraded forests and inefficient forests. Based on this, this paper introduces the advantages of afforestation and seedling afforestation of Pinus sylvestris var. Mongolica and its problems in afforestation, and elaborates the management measures after afforestation for the reference of relevant departments. Hengshan County is located in the northern part of Shaanxi Province and the southern margin of the Mu Us Desert. It is located between 108 ° 65 ’~ 110 ° 02’ east longitude and 37 ° 22 ’~ 38 ° 74’ north latitude, belonging to the temperate continental monsoon semi-arid grassland climate. The total land area is 4 333 km2 with a total population of at least 330 000. The territory of numerous rivers, abundant water, landform to Luhe, Wudinghe as a community, is divided into two parts: the northern winds and sand beach area and southern hilly areas. Topography of the points