西北林学院学报2025，Vol.40Issue(4)：9-20,12.DOI:10.3969/j.issn.1001-7461.2025.04.02
不同分布区8种栎类树种生长过程的比较研究
Study on the Growth Process of Eight Oak Species across Different Distribution Areas
摘要
Abstract
The oak tree species group holds the top position in both distribution area and standing volume in China.Studying its growth process provides a basis for the utilization and management of oak forests.In the present study,we focused on eight common oak species(Q.aliena,Q.aliena var.acutiserrata,Q.vari-abilis,Q.acutissima,Q.wutaishanica,Q.mongolica,Q.myrsinifolia,and C.fargesii).We combined the analytic timber data from eight main distribution provinces and analyzed the average growth and annual in-crement of tree height,DBH and volume for each species.We also conducted model fitting and accuracy as-sessment on the overall growth of these three indicators.The growth status and fitting results varied among oak species across different distribution areas.The annual increment of tree height and DBH showed a downward trend after twenty years for deciduous oak species,while that of evergreen oak species began to decline after ten years.Significant differences were observed in the mean annual increment of Q.aliena be-tween different distribution areas(P＜0.05),while no significant differences were observed between dif-ferent distribution areas for Q.mongolica and Q.variabilis(P＞0.05).The optimal model equation of each growth indicator were best described by quadratic curve models for deciduous oaks,while it was pre-dominantly Richard models for evergreen oaks.In short,there are differences in the growth of oak species in different distribution areas,and the competition of evergreen oak stands will appear earlier than decidu-ous oak.The findings from this study can provide a valuable scientific reference to estimation of carbon sink in oak forests.关键词
栎类/生长过程/分布区/最优模型Key words
oak/growth process/distribution area/optimization model分类
农业科技引用本文复制引用
聂稳,刘建锋,王奇,黄睿智,孙婧依,赵倚霈,杨绍微,程向芬,肖文发..不同分布区8种栎类树种生长过程的比较研究[J].西北林学院学报,2025,40(4):9-20,12.基金项目
国家自然科学基金(42071065) （42071065）
中央级公益性科研院所基本科研业务费专项重点项目(CAFYBB2022ZA001). （CAFYBB2022ZA001）
