林业与生态科学2025，Vol.40Issue(2)：119-126,8.DOI:10.13320/j.cnki.hjfor.2025.0014
森林公园林木枯倒驱动因素及空间分布特征分析
Driving factors and spatial distribution characteristics of fallen dead wood in forest park
摘要
Abstract
In this research,the scenic forests of Zijinshan National Forest Park was taken as the research subject,and the data about the fallen dead wood from 98 typical sample plots within the Nanjing Zijinshan National Forest Park was collected in 2018.Besides,with Landsat 8 OLI remote sensing imagery of the Nanjing area in 2018,DEM data of Zijinshan Mountain,and the vector road network data as well as residential data of the study area,the driving factors and spatial distribution characteristics of fallen dead wood in the study area were analyzed by using Pearson correlation coefficient analysis and interaction analysis of ge-ographic detector based on calculating the stock of fallen trees in the sample plot.The result indicated that:(1)The total volume of dead wood in the 98 plots was 47.351 m3,with an average of 0.488 m3.The dead wood volume in the three dominant tree species of Quercus acutissima,Pinus massoniana and Liquidambar formosana accounted for 66.18％of the to-tal volume.(2)The occurrence of fallen dead wood was significantly influenced by slope as-pect and soil moisture,as demonstrated by the Pearson analysis.(3)Anthropogenic disturb-ances,such as proximity to residential areas and roads,along with the age of dead woods,were found to have a substantial explanatory effect to the quantity of fallen dead wood,as re-vealed by the interaction analysis of the geo-detector.(4)Ecological sensitivity analysis showed that fallen dead wood in Zijinshan Mountain was predominantly distributed across ec-ologically sensitive ridges and northern slopes.In contrast,the southern slopes,which har-bored fewer dead wood instances,were observed to be significantly affected by forest man-agement activities regarding the dead wood's quantity and distribution.In conclusion,topo-graphic and soil characteristics,stand structure factors and human disturbance factors were the main factors affecting the number and spatial distribution of fallen dead wood in the study area.关键词
枯倒木/驱动因素/空间分布/紫金山Key words
fallen dead wood/driving factors/spatial distribution/Zijinshan Mountain分类
农业科技引用本文复制引用
胡娟娟,李律己,彭钰雯..森林公园林木枯倒驱动因素及空间分布特征分析[J].林业与生态科学,2025,40(2):119-126,8.基金项目
国家自然科学基金项目(31170592). （31170592）
