生态与农村环境学报2026，Vol.42Issue(3)：366-378,13.DOI:10.19741/j.issn.1673-4831.2025.0071
太行山东麓酸枣灌丛植物多样性空间分布特征及其驱动因子研究
The Spatial Distribution Characteristics of Plant Diversity and Its Driving Factors in the Eastern Foothills of the Taihang Mountains
摘要
Abstract
Jujube is an important plant in the arid and semi-arid regions of northern China,and studying the spatial distri-bution characteristics of plant diversity in its community is crucial for the ecological protection and restoration of arid and semi-arid areas.In this paper,the spatial characteristics of plant α and β diversity and their driving factors in wild jujube shrubs in the eastern foothills of the Taihang Mountains were studied by using quadrat survey,non-metric multidimensional scale ranking,Spearman analysis,RDA analysis and other methods or means.The results show that:(1)In wild jujube shrubs in the eastern foothills of the Taihang Mountains,20 species of shrub plants in 10 families and 11 genera,and 64 species of herbaceous plants in 21 families and 38 genera were recorded.(2)In terms of α diversity,the spatial distribu-tion of Shannon index and Margalef index of shrub plants was higher in the north and south section and lower in the middle section.The spatial distribution of Shannon index and Margalef index of herbaceous plants was consistent with that of shrub plants.Both the Simpson index and Pielou index of shrub plants and herbaceous plants have no obvious spatial distribution characteristics.In terms of β diversity,the species composition of shrubs in the middle part was the most similar to that of other plots,while the species composition of herbs in the southern part was the most similar to that of other plots,and the spatial distribution of Jaccard index was consistent with that of Sorensen index.The spatial replacement rate of shrubs in the southern section is the fastest,and the replacement rate of herbaceous plants has no obvious rule.(3)According to the analysis of soil physical and chemical properties,it was found that the soil organic carbon,total nitrogen and water content were lower in the middle part,higher in the south and north section,and soil is mainly composed of silt.(4)The total explanation rate of environmental factors to plant α diversity index is 60.58％.The factors with positive and signifi-cant explanation rate are soil particle size(14.30％),soil density(11.20％),soil organic carbon(11.00％),precipita-tion(6.90％)and porosity(6.30％).There is a significant positive correlation between soil organic carbon and shrub Shannon index and Margalef index.The proportion of soil silt was positively correlated with shrub Shannon index and Mar-galef index,and the average annual precipitation was positively correlated with shrub Margalef index.In summary,the plant diversity in the north and south section of the eastern foot of Taihang Mountains is relatively rich,while the diversity in the middle section is relatively low.Soil physical and chemical properties and precipitation have a significant impact on the plant diversity of the community.关键词
太行山/野生酸枣/灌丛/植物多样性/驱动因子Key words
Taihang Mountain/wild jujube/shrub/plant diversity/driving factors分类
资源环境引用本文复制引用
艾昌奇,薛紫鲸,刘倩愿,陈雅轩,陈艳梅..太行山东麓酸枣灌丛植物多样性空间分布特征及其驱动因子研究[J].生态与农村环境学报,2026,42(3):366-378,13.基金项目
国家自然科学基金(32371747) （32371747）
河北省教育厅科学技术研究项目(BJ2025034) （BJ2025034）
