南京市古树名木资源现状与空间布局  

Present situation and spatial layout of ancient and famous trees in Nanjing

作　　者：陈勇[1] 何峰 韩也逸 CHEN Yong;HE Feng;HAN Yeyi(Nanjing Forest Police College,Nanjing 210023,Jiangsu,China;Nanjing Bureau of Greening and Landscaping,Nanjing 210019,Jiangsu,China)

机构地区：[1]南京森林警察学院,江苏南京210023 [2]南京市绿化园林局,江苏南京210019

出　　处：《中南林业科技大学学报》2023年第12期14-23,125,共11页Journal of Central South University of Forestry & Technology

基　　金：江苏省社会科学基金项目(19FXD003);国家林业和草原局野生植物保护管理项目(2020070325)。

摘　　要：【目的】为进一步掌握江苏省南京市古树名木资源现状组成,探索其空间布局特征及其影响因素,本研究对南京市的古树名木资源进行了详细的调查与分析。【方法】基于2021—2022年的南京市古树名木的调查资料,采用最邻近点指数法与点要素核密度分析法等研究了南京市古树名木资源现状特征、空间格局特征、优势种及其分布特征。【结果】南京市共有古树名木2094株,其中名木、一级古树和二级古树分别为257、80和1757株,隶属于49科87属142种,且达20株以上的优势古树名木树种有16种。树龄高于1000 a的一级古树共有14株,而小于1000 a并高于500 a的一级古树共有24株,有70.06%的古树名木分布于玄武区的中山陵景区。南京市古树名木共有56.16%生长状况旺盛,生长状况一般的古树名木占比41.36%,且以柏科与松科为主。南京市古树名木空间分布特征属于空间聚集型,不同辖区呈现出显著的差异,且中部区域具有最高的空间聚集性,不同土地利用类型中古树名木的占比排序为居民点及建设用地>林地>耕地>草地>水域>其他用地,分布于林地区域的古树名木总量占比为44.75%,仅有4.11%位于耕地区域。【结论】总体来看,南京市古树名木资源丰富,其数量和种类的分布特征均表现为聚集型分布,人口密度、土地利用类型、经纬度和海拔等因素均对古树名木的空间分布产生了显著影响。【Objective】In order to further grasp the current composition of ancient and famous tree resources in Nanjing,Jiangsu province,and explore the spatial layout characteristics and influencing factors,this paper conducted a detailed investigation and analysis of ancient and famous tree resources in Nanjing.【Method】Based on the survey data of ancient and famous trees in Nanjing from 2021 to 2022,the nearest neighbor index method and point element kernel density analysis method were used to study the current status characteristics,spatial pattern characteristics,dominant species and distribution characteristics of ancient and famous trees in Nanjing.【Result】There were 2094 ancient and famous trees in Nanjing,including 257 famous trees,80 first-grade ancient trees and 1757 second-grade ancient trees,belonging to 49 families,87 genera and 142 species,and there were 16 dominant ancient and famous trees with more than 20 species.There were 14 first-class ancient trees older than 1000 years,and 24 first-class ancient trees less than 1000 years old and more than 500 years old,and 70.06%of the ancient trees were distributed in the Zhongshan Mausoleum Scenic Area in Xuanwu District.A total of 56.16%of the ancient and famous trees in Nanjing had a strong growth condition,and 41.36%of the ancient and famous trees with average growth status were mainly cypresses and pines.The spatial distribution characteristics of ancient and famous trees in Nanjing belong to the spatial aggregation type,and different jurisdictions show significant differences,and the central region had the highest spatial aggregation,and the proportion of ancient trees and famous trees in different land use types was sorted as residential areas and construction land>forest land>arable land>grassland>water area>other land,the total number of ancient and famous trees distributed in the forest area accounted for 44.75%,and only 4.11%locate in the cultivated land area.【Conclusion】In general,Nanjing is rich in ancient and famous trees,and the distrib

关 键 词：古树名木 南京市 资源现状 空间布局 

分 类 号：S727.5[农业科学—林木遗传育种]