祁连圆柏抗旱造林技术

青海地区海拔高、干旱和严寒，自然条件较差，生态环境恶劣，在生态建设和生态恢复过程中，可供造林的树种资源相对较少。而且祁连圆柏是青海省高寒干旱地区造林绿化的优良乡土树种之一。该树种具有适应能力强、耐干旱、耐寒、耐贫瘠和根系发达的特点，是祁连山区及其周边山区开展人工造林的主要树种，特别是阳坡造林的主要树种。祁连圆柏为雌雄同株，树木最高生长量高达12 m，树干笔直，枝条伸展平直，树干外观颜色呈现灰色和灰褐色，开裂之后形成不规则的条片，而后脱落。叶子存在刺叶和鳞叶，果实外观呈现卵圆形或圆球形，种子呈现椭圆形或扁圆形。近些年，青海省互助县依托本地区的祁连圆柏物种优势，积极开展抗旱造林技术，取得了突出成就，地区生态环境进一步好转，森林覆盖面积进一步增加。该文就祁连圆柏抗旱造林技术开展论述。 

Qilian Sabina Drought-resistance Afforestation Technology

Qinghai has high altitude，drought，and severe cold，poor natural conditions，and poor ecological environment.During process of ecological construction and ecological restoration，there are relatively few tree species available for afforestation.Moreover，Qilian Sabina is one of the fine native tree species in afforestation and afforestation in the cold and drought regions of Qinghai province.The tree species has characteristics of strong adaptability，drought resistance，cold resistance，resistance to barrenness，and developed root system.It is the main tree species for artificial afforestation in the mountainous areasand around Qilian mountain，especially the main tree species for afforestation on sunny slopes.Qilian Sabina is a male and female plant.The highest growth of the tree is up to 12 meters.The trunk is straight，the branches are straight and the trunk looks gray，gray-brown.After the cracking，irregular strips form and then fall off.There are thorny leaves and scaly leaves in the leaves.The appearance of the fruit is ovoid or round and the seeds are oval or oblate.In recent years，Huzhu county of Qinghai province relied on the advantages of Qilian Sabina species in the region，had actively carried out drought-resistance afforestation techniques and had made outstanding achievements.The regional ecological environment had further improved，and the forest coverage had further increased.This research mainly discussed Qilian Sabina′s drought-resistance afforestation technology.