小陇山林区野生白檀资源调查与分析  

Resources Investigation and Analysis of Wild Symplocos paniculata in Xiaolongshan Forest Region

作　　者：田凌鸿 毛润科 TIAN Linghong;MAO Runke(Lizi Forest Farm of Xiaolongshan Forestry Protection Center in Gansu Province,Gansu Tianshui 741004,China;Gansu Provincial Key Laboratory of Secondary Forest Cultivation,Gansu Tianshui 741002,China)

机构地区：[1]甘肃省小陇山林业保护中心李子林场,甘肃天水741004 [2]甘肃省次生林培育重点实验室,甘肃天水741002

出　　处：《甘肃林业科技》2025年第1期64-67,共4页Journal of Gansu Forestry Science and Technology

基　　金：甘肃省小陇山林区第一次林木种质资源调查试点项目(甘林场函[2015]359号)。

摘　　要：本研究对小陇山林区不同海拔高度范围的野生白檀资源进行了详细的调查和统计,记录了白檀生长的立地因子、表型性状及单株结实量等,并进行了相关分析。结果表明,1)小陇山林区野生白檀主要分布在海拔1000~2280 m的棕壤地带,低海拔(<1200 m)和高海拔地区(>1800 m)的个体性状和变异程度较高,而在中低海拔地区表现较为稳定,光强度、土壤表层保水能力和海拔高度是白檀自然分布的主要限制因子;2)研究区域内白檀单株结实量差异较大,变异系数为47.81%,最高单株结实量达到3.51 kg,树高、冠幅、枝下高是影响白檀单株结实量的主要树体结构因子。适宜生境的保护和栽培技术的改进对白檀资源可持续利用极为重要,研究结果为进一步保护和合理开发小陇山林区的白檀资源提供了科学依据。The detailed resources investigation and statistics of wild Symplocos paniculata in different altitude ranges in Xiaolongshan forest region were conducted in this study,and the site factors,phenotype traits,and seed yield per plant of S.paniculata were recorded and analyzed.The results showed that:1)the wild Symplocos paniculata in Xiaolongshan forest area mainly distributed in the brown soil area of 1000~2280 m above sea level,and the individual traits and variation degree were higher in the low altitude(<1200 m)and high altitude(>1800 m),while the performance was relatively stable in the middle and low altitude areas.Light intensity,water retention ability of soil surface and altitude were the main limiting factors of natural distribution of S.paniculata.2)There was a great difference in the fruit yield per tree in the study area,the coefficient of variation was 47.81%,and the highest fruit yield per tree reached 3.51 kg.Tree height,crown width and branch height were the main structural factors affecting the fruit yield per tree.The scientific basis was provided for further protection and rational development of S.paniculata resources in Xiaolongshan forest area by the study,and the importance of protection of suitable habitat and improvement of cultivation technology for sustainable utilization of S.paniculata resources were emphasized.

关 键 词：白檀 资源调查 单株结实量 

分 类 号：S792.99[农业科学—林木遗传育种]