水土保持研究2026，Vol.33Issue(1)：63-70,8.DOI:10.13869/j.cnki.rswc.2026.01.023
沙地植被恢复类型对生物结皮微生物群落组成的影响
Effects of vegetation restoration types on microbial community composition of biological soil crusts in sandy land
摘要
Abstract
[Objective]This study aims to investigate the effects of different vegetation restoration types on the microbial community composition of biological soil crusts(biocrusts)in sandy ecosystems,providing a theoretical basis for the management of sandy ecosystems.[Methods]High-throughput sequencing technology was employed,with bare sandy land as the control,to analyze the variation characteristics of microbial community composition and diversity in biocrusts under different vegetation restoration types,including herbaceous,shrub,and symbiotic shrub and herb.[Results](1)Compared to bare sandy land where the dominant bacterial phylum was Proteobacteria and the dominant genus was Acinetobacter,the dominant bacterial phylum in biocrusts under the vegetation restoration types of herbaceous,shrub,and symbiotic shrub and herb was Cyanobacteria.The dominant bacterial genus was Microvirga under herbaceous and symbiotic shrub-herb types,while the dominant genus was RB41 under the vegetation restoration type of shrub.In contrast,the dominant fungal phyla in biocrusts across all vegetation restoration types were consistent with those in bare sandy land,namely Ascomycota and Basidiomycota.(2)All vegetation restoration types significantly increased the α-diversity of both bacterial and fungal communities in biocrusts.For bacterial communities,Shannon and Chao1 indices followed the order:symbiotic shrub and herb>shrub>herbaceous>bare sandy land.For fungal communities,the order was herbaceous>symbiotic shrub and herb>shrub>bare sandy land.(3)The β-diversity of bacterial communities was significantly influenced by vegetation restoration types,while the β-diversity of fungal communities appeared to be more affected by non-vegetation factors.[Conclusion]Vegetation restoration types significantly affect bacterial community composition and enhance microbial diversity in biocrusts,but exhibit no significant impact on fungal communities.关键词
植被类型/生物土壤结皮/真菌/细菌/群落组成/多样性Key words
vegetation type/biological soil crusts/fungi/bacteria/community composition/diversity分类
农业科技引用本文复制引用
Jiang Bing,Gao Liqian,Sun Hui,Wang Peng,Zhao Yunge,Zhang Zhaoqian..沙地植被恢复类型对生物结皮微生物群落组成的影响[J].水土保持研究,2026,33(1):63-70,8.基金项目
宁夏回族自治区重点研发计划(2022BEG03053) （2022BEG03053）
中国科学院"西部之光"人才培养计划(XAB2022YW01) （XAB2022YW01）
