摘要
目的:为了全面了解哀牢山南华片区半湿润常绿阔叶林元江锥林林分结构,掌握其中的变化规律性,保护植被类型完整性,为保护区元江锥林分科学保护提供依据。方法:通过建立元江锥半湿润常绿阔叶林林分监测样地,采用数学统计法和数量分析法对林分的非空间和空间结构进行研究。结果:研究区元江锥半湿润常绿阔叶林林分中,元江锥是优势树种,主要伴生树种有云南越橘、马缨杜鹃、木果柯、厚皮香4个树种。林分物种丰富度不高,个体出现频率相对稳定,优势种对于普通种的影响程度不高;整体林分林木以中小径木为主,具有明显的复层异龄性。同时,林分正处于向顶极群落演替的初期阶段,林分树种空间隔离程度不大,在混交程度上达到中上水平,林分结构稳定性一般。结论:保护区元江锥林分经营管理中应注重优化林分结构,加强保护,引导幼树天然更新,保证主要建群树种的良好生长,提高林分稳定性。同时,在自然保护区中,更应该注重减少人为干扰,通过林分自然演替形成顶级群落,实现生物多样性和碳储量平衡及最大化。
Objective:In order to understand the structure of the semi-humid evergreen broad-leaved forest led in the Nanhua Area of Ailaoshan,grasp the regularity of its changes,protect the integrity of vegetation types,and provide scientific protection of the Castanopsis orthacantha forest in the protected area.Methods:Monitoring plots for semi-humid evergreen broad-leaved forest stands dominated by C.orthacantha were established,and mathematical statistics and quantitative analysis methods were adopted to study the non-spatial and spatial structure of the stands.Results:In the research on the semi-humid evergreen broad-leaved forest stand dominated by C.orthacantha,C.orthacantha was the dominant tree species.It was mainly accompanied by four tree species:Vaccinium duclouxii,Rhododendron delavayi,Lithocarpus xylocarpus and Ternstroemia gymnanthera.The species richness of the forest was not high;the appearance frequency of individual species was relatively stable;the influence of dominant species on common species was not strong.The overall forest stand was mainly composed of small and medium-sized trees,with obvious layering and different ages.At the same time,the forest was in the early stage of community succession towards the climax,and the degree of spatial isolation of tree species in the forest was not significant.The degree of mixing was observed to reach a medium to high level,and the stability of the forest structure was average.Conclusion:In the management of the C.orthacantha forest in the nature reserves,it is necessary to optimize the forest structure,strengthen protection,guide the natural regeneration of young trees,ensure the good growth of the main tree species,and improve the stability of the forest.Meanwhile,in nature reserves,more attention should to be paid to reducing human interference and forming top-level communities through natural forest succession to achieve the balance and maximization of biodiversity and carbon storage.
作者
张志强
张衍
尹光华
魏靖琳
ZHANG Zhiqiang;ZHANG Yan;YIN Guanghua;WEI Jinglin(Yunnan Ailaoshan National Nature Reserve of Chuxiong Management and Protection Bureau,Chuxiong 675000,China)
出处
《中国野生植物资源》
2025年第6期103-110,118,共9页
Chinese Wild Plant Resources
关键词
哀牢山国家级自然保护区
元江锥
半湿润常绿阔叶林
林分结构
群落演替
Ailaoshan National Nature Reserve
Castanopsis orthacantha
Semi-humid evergreen broad-leaved forest
Stand structure
Community succession
