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肇庆市古树名木资源特征与空间分布格局分析

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基于肇庆市古树名木普查和补充调查数据,对肇庆市古树名木资源现状特征进行统计和分析,采用点要素最邻近指数法与核密度分析法研究和分析肇庆市古树名木空间分布格局和分布特征。结果表明:肇庆市共有古树名木3553株,其中名木5株,一级古树25株,二级古树240株,三级古树3283株,隶属41科79属120种,以桑科(Moraceae)、无患子科(Sapindaceae)、樟科(Lauraceae)、壳斗科(Fa-gaceae)、漆树科(Anacardiaceae)、山茶科(Camellia)为优势科。肇庆市古树名木在空间上的分布格局主要呈现为凝聚型分布,但这一分布特征在不同行政辖区之间却展现出了显著的差异性和独特性,全市存在6个核密度估计值较高的聚集区,且东南片区较西北片区具有更高的空间聚集性。
Study on the Characteristics and Spatial Distribution Patterns of Ancient and Famous Trees in Zhaoqing City
Based on the census and supplementary survey data of ancient and famous trees in Zhaoqing City,this paper statistically analyzes the current status and characteristics of the resources of ancient and famous trees in Zhaoqing City.The nearest neighbor index approach for point features,alongside kernel density analysis is em-ployed to delve into the spatial distribution patterns and salient characteristics of ancient and renowned trees with-in the city of Zhaoqing.The study reveals a total of 3553 ancient and renowned trees in Zhaoqing City,comprising 5 prestigious,25 top-grade ancient,240 second-grade ancient,and 3283 third-grade ancient trees.These trees be-long to 41 families,79 genera,and a diverse array of 120 species.The dominant families are Moraceae,Sapindace-ae,Lauraceae,Fagaceae,Anacardiaceae,and Camellia.The spatial distribution characteristics of ancient and fa-mous trees in Zhaoqing City belong to the spatial agglomeration types,and there are significant differences among different jurisdictions.There are six aggregation areas with higher estimated kernel density,and the southeast area has higher spatial agglomeration than the northwest area.

ancient and famous treesresource characteristicsdistribution patternsZhaoqing City

张峰

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肇庆市林业局林业科技推广站,广东肇庆 526000

古树名木 资源特征 分布格局 肇庆市

2024

绿色科技
花木盆景杂志社

绿色科技

影响因子:0.365
ISSN:1674-9944
年,卷(期):2024.26(21)