摘要
为缓解祁连圆柏苗木过剩导致的效益低下问题,对低效苗圃实施转型改造,将15~20a生祁连圆柏苗木截干改造成采种林,总结转型改造技术,研究不同伐桩高度对植株再生能力、种子产量和质量的影响。结果表明:伐桩高度50cm的结果株率、单枝产果量、千粒重、发芽率、苗高和针叶数均最高,综合效果最佳,建议在祁连圆柏低效苗圃转型改造中应用推广。
In order to relieve the problem of low benefit for seedling plenty of Juniperus przewalskii Kom.,the low benefit nursery was reformed and remade,whose 15~20 years Juniperus przewalskii Kom.seedlings were cut into seed stand,and the reform and remake technology was summarized,the effects of different cutting pile height on plant regeneration capacity,seed yield and quality were studied.The result showed that the fruit plant rate,single branch fruit yield,thousand-seed weight,and germination rate,seedling height and needle leaf number of cutting pile height 50cm were the highest in all treatments,the comprehensive effect was the best,which should be used in reform and remake of low benefit nursery.
作者
刘永龙
LIU Yonglong(Haxi Station of Gansu Qilianshan National Nature Reserve Management and Protection Center,Tianzhu 733206)
出处
《林业勘查设计》
2023年第5期13-16,63,共5页
Forest Investigation Design
关键词
祁连圆柏
苗圃
转型改造
采种林
截干
Juniperus przewalskii Kom.
Nursery
Transformation and Reformation
Nurse-crop
Stump
作者简介
刘永龙(1975-)男,甘肃天祝人,高级工程师.从事林业资源管护和技术推广工作.
