甘肃白龙江林区铁杉培育及物候、灾害谱应用

Cultivation and Application of Hemlock Phenology and Disaster Spectrum in Bailongjiang Forest Area of Gansu Province

铁杉作为甘肃白龙江流域乡土树种,具有根系发达、能够抗风、抗雪压和寿命长等特征,是荒山造林和水源涵养林的优良树种,但由于该树种在分布区种群数量少,且种子发芽率低、休眠期长和天然更新能力差,因此铁杉育苗技术显得十分重要。通过在甘肃省迭部生态建设管护中心国有苗圃内进行铁杉种苗育苗,详细记录了物候特征和灾害规律,并对采种制种、播种育苗、容器苗移植培育和人工造林等技术有了更深的了解和掌握,为铁杉培育提供参考。

As a native tree species in Bailong River basin of Gansu province,hemlock is an excellent tree species for afforestation and water conservation forests in barren mountains with developed roots,resistance to wind and snow pressure,and long life.However,due to its small population in distribution area,low seed germination rate,long dormant period and poor natural regeneration ability,hemlock seedling cultivation technology is very important.Through the cultivation of hemlock seedlings in the state-owned nursery of Ecological Construction Management and Protection Center of Gansu Province,the phenological characteristics and disaster laws were recorded in detail,and the technology of seed collection and seed production,seeding and seedling cultivation,container seedling transplantation and cultivation,artificial afforestation and other technologies were further understood and mastered,which could provide reference for the cultivation of hemlock.