曲靖市华山松母树林的营建技术研究  

Study on the Construction Technology of Pinus armandii MotherTree Forest in Qujing City

作　　者：许海燕 Xu Haiyan(Qujing State-owned Haizhai Forest Farm,Qujing 655000,Yunnan,China)

机构地区：[1]曲靖市国有海寨林场,云南曲靖655000

出　　处：《绿色科技》2024年第11期111-116,共6页Journal of Green Science and Technology

摘　　要：种子是造林的基础,种源质量直接影响后代林木的生长状况。研究旨在探讨华山松母树林营建技术及其效果,为提高华山松母树林的生长结实效果和种子品质提供科学依据。根据林地环境、林龄、郁闭度和树种组成4个方面选择林分作为母树林进行建设。对潜在的采种区域进行踏查和标准地调查,根据母树等级划分采种区。采用疏伐的方式营建母树林,并进行松土、除草、施肥、防火、病虫害防控等管理措施。以云南曲靖市海寨林场华山松母树林进行案例分析,评估母树林营建和管理措施的效果。结果表明:母树林的树高、胸径和冠幅均显著高于对照组(P<0.05),枝下高显著低于对照组(P<0.05),母树林的结实株率、球果干重、千粒重和健全籽率与对照组之间均存在显著差异(P<0.05),说明经母树林营建技术改造和养护后,华山松植株的生长、结实、种子品质均有显著提升。通过科学的母树林选建、采种母树选择、母树林的营建与管理,可以显著提高华山松母树林的生长结实效果和种子品质,建议在该地区推广使用。Seeds are the foundation of afforestation,and the quality of seed sources directly affects the growth of offspring forests.This study aims to investigate the construction technology of Pinus armandii mother tree forests and its effects,providing a scientific basis for improving the growth,fertility,and seed quality of Pinus armandii mother tree forests.Forest stands were selected as mother tree forests based on four aspects:forest land environment,forest age,canopy density,and tree species composition.Potential seed harvesting areas were surveyed and standard land surveys were conducted.Seed harvesting areas were determined based on the classification of mother trees.Then,mother tree forests were constructed using thinning methods,with management measures such as soil loosening,weeding,fertilization,fire prevention,and pest control implemented.Finally,a case study was conducted in the Pinus armandii mother tree forest in the Haizhai of Qujing City,Yunnan Province,to evaluate the effects of mother tree forest construction and management measures.The tree height,diameter at breast height,and crown width of the mother tree forest were significantly higher than those of the control group(P<0.05),while the clear bole height was significantly lower than that of the control group(P<0.05).The fruiting tree rate,cone dry weight,thousand-seed weight,and sound seed rate of the mother tree forest were significantly different from those of the control group(P<0.05),indicating that the growth,fertility,and seed quality of Pinus armandii were significantly improved after the construction and maintenance of the mother tree forest using the proposed technology.Through scientific selection of mother tree forests,selection of seed mother trees,and construction and management of mother tree forests,the growth,fertility,and seed quality of Pinus armandii mother tree forests can be significantly improved.It is recommended to promote the use of this technology in the region.

关 键 词：华山松 母树林 营建技术 曲靖市 

分 类 号：S727[农业科学—林木遗传育种]