贵阳城市化和边缘效应对城市残存森林木本植物系统发育特征的复合影响

扫码查看

原文链接

万方数据
维普

中文摘要：城市残存森林具有很高的保护价值，探究城市化与城市残存森林木本植物系统发育特征的关系有助于揭示城市残存森林生物多样性的维持机制。本研究以中国西南山地城市贵阳为研究区域，调查了 9个残存森林斑块72个样地中木本植物的组成，计算了其系统发育指数，通过多重比较、配对t检验、相似性分析等方法解析了城市化和边缘效应对城市残存森林木本植物系统发育特征的综合影响。结果表明:灌木群落的系统发育多样性较高但系统发育结构的聚集趋势更明显;高城市化水平下幼苗幼树层植物群落的边缘效应显著;城市化水平对边缘生境植物群落系统发育特征的影响大于内部生境;高城市化水平边缘生境植物群落与低城市化水平内部生境植物群落的系统发育结构差异大。研究表明，城市化水平和边缘效应共同影响了残存森林斑块中植物群落的系统发育特征，建议控制残存斑块周围的城市化程度以减轻边缘效应对残存植物系统发育的影响。

外文标题：Combined impacts of urbanization and edge effects on the phylogenetic characteristics of woody plants in urban remnant forests in Guiyang

外文摘要：Urban remnant forests have a high value in biodiversity conservation.The knowledge about the relation-ship between urbanization and phylogenetic characteristics of woody plants can help reveal the maintenance mecha-nism of biodiversity in urban remnant forests.We surveyed species composition of woody plants in 72 plots of nine remnant forest patches in a southwest mountain city-Guiyang,China.We calculated the phylogenetic parameters of plant communities.We used Tukey test,paired t-test,and analysis of similarities to explore the combined impacts of urbanization and edge effects on the phylogenetic characteristics of woody plants in urban remnant forests.We found high phylogenetic diversity of shrub communities and an aggregation trend of phylogenetic structure.The edge effects at sapling/seedling layer were significant under high levels of urbanization.Urbanization level had more influence on the phylogenetic characteristics of plant communities in edge habitats than in inner habitats.The phylo-genetic structure of plant communities in the edge habitats under high urbanization levels was significantly different from that in the inner habitats under low urbanization levels.Both the urbanization level and edge effects influenced the phylogenetic characteristics of plant communities in remnant forests.We recommend that urban expansion sur-rounding remnant patches should be strictly controlled to alleviate edge effects on the phylogeny of remnant vegeta-tion.

外文关键词：

urban remnant foresturbanization leveledge effectwoody plantphylogenetic characteristicsGuiy-ang

作者：

潘英、王子进、杨静怡

展开 >

作者单位：

贵州大学林学院,贵阳 550025

关键词：

城市残存森林城市化水平边缘效应木本植物系统发育特征贵阳

基金：

2021年贵州省省级教学内容与课程体系改革项目贵州省2022年高等学校教学内容和课程体系改革项目贵州省科技计划项目贵州省科技计划项目

项目编号：

2021021GZJG20220703黔科合LH字[2016]7447号贵大SRT字2022345号

出版年：

2024

DOI：

10.13292/j.1000-4890.202401.012

生态学杂志

中国生态学学会

生态学杂志

CSTPCD北大核心

影响因子：1.439

ISSN：1000-4890

年,卷(期)：2024.43(1)

参考文献量49