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祁连圆柏是青海重要的抗旱树种,具有耐寒、耐贫瘠的特性,由于其特殊的生态分布特征和广泛的适应性,已成为干旱地区绿化的主要树种。然而,由于祁连圆柏天然林多分布在较偏远、高海拔、阳坡、半阳坡的石质山地和棕壤上,伴生树种少,天然更新十分困难。在青藏高原天然分布的祁连圆柏基本以中老林分为主,处于严重的衰退状态。祁连圆柏天然林分退化严重,种子产量低、质量差,种子种仁率一般只有10%￣20%,并且后熟期长,
Sabina przewalskii is an important drought-resistant tree species in Qinghai. It has cold-tolerant and barren-resistant characteristics. Due to its special ecological distribution and extensive adaptability, Sabina przewalskii has become the main tree species for greening in arid regions. However, since the natural forests of Sabina przewalskii are distributed in stony mountains and brown earth with more remote, high altitude, sunny and semi-sunny slopes, there are fewer associated species and natural regeneration is very difficult. In the Qinghai-Tibet Plateau natural distribution of Qilian Sabina basically dominated by forest, in a serious recession. Qilian Sabina natural forest degradation is serious, the seed yield is low, the quality is poor, seed kernel rate is generally only 10% ~ 20%, and the long maturity,