云南省芒市古树名木资源调查与特征分析

通过对芒市古树名木资源现状进行调查,对古树名木的资源特征、空间分布格局、生长状况等方面的分析得出,芒市地区现有古树名木总量达1 028株,隶属17科23属32种。以高山榕等乡土树种为主要优势种,树龄呈金字塔结构,空间分布呈现以中心城区聚集逐渐向四周辐射的格局;人为活动对古树影响小,古树的海拔与数量具有极显著强相关关系(p=-0.959);胸径、冠径和树高的3者存在非线性正相关关系(高山榕为主),且树龄的增大不会对树种的外观生长状态造成影响。郊区的古树名木资源成为今后管理部门保护的重点。研究从多角度全面分析了全市古树资源状况,可为古树名木保护工作提供参考。

Inventory and Characteristic Analysis for Ancient and Famous Tree Resources in Mangshi,Yunnan Province

Based on the investigation of the current situation of ancient and famous trees in Mangshi City,and the analysis of the resource characteristics,spatial distribution pattern and growth status of ancient and famous trees,the results show that there are 1028 ancient and famous trees in Mangshi area,belonging to 32 species,23 genera,17 families.Taking local tree species such as Ficus altissima as the main dominant species,the age of trees is pyramid structure,and the spatial distribution is a pattern of gathering in the central urban area and gradually radiating around.Human activities have little impact on ancient trees.There is a strong correlation(p=-0.959)between the altitude and the number of ancient trees.There is a nonlinear positive correlation among DBH(mainly Ficus altissima),crown diameter and tree height,and the increase of tree age will not affect the appearance and growth of tree species.The ancient and famous trees resources in the suburbs will become the focus of protection for the management departments in the future.The study comprehensively analyzed the status of ancient tree resources in the city from various perspectives,which can provide reference for the protection of ancient and famous trees.