文献类型：期刊文献

英文题名：Variation in soil bacterial community characteristics inside and outside the West Ordos National Nature Reserve, northern China

作者：Guo, Pu[1,2] Li, Shuai[3] Zhu, Jinlei[1,2] Lu, Qi[1,2]

通信作者：Zhu, JL[1];Lu, Q[1];Zhu, JL[2];Lu, Q[2]

机构：[1]Chinese Acad Forestry, Inst Ecol Conservat & Restorat, Beijing, Peoples R China;[2]Chinese Acad Forestry, Inst Desertificat Studies, Beijing, Peoples R China;[3]Chinese Acad Forestry, Expt Ctr Desert Forestry, Dengkou, Peoples R China

年份：2024

卷号：15

外文期刊名：FRONTIERS IN MICROBIOLOGY

收录：;Scopus(收录号：2-s2.0-85196756677);WOS:【SCI-EXPANDED(收录号:WOS:001262773600001)】；

基金：The author(s) declare that financial support was received for the research, authorship, and/or publication of this article. This research was funded by the Basal Research Fund of Central Public-Interest Scientific Institution (CAFYBB2021MC002-02 and CAFYBB2021ZB003-04) and the Special Foundation for National Science and Technology Basic Research Program of China (2019FY102000).

语种：英文

外文关键词：desert grassland; nature reserve; soil bacteria; plant biomass; soil chemical index

摘要：Nature reserves are crucial for protecting biological habitats and maintaining biodiversity. Soil bacterial community plays an irreplaceable role in the structure and function of ecosystem. However, the impact of nature reserves on soil bacterial communities is still unclear. To explore the effects of desert grassland nature reserve management on soil microbial communities, we compared the differences in soil bacterial community composition, alpha-diversity and community structure inside and outside a desert grassland nature reserve, and explored the correlation between soil bacterial communities and plant biomass and soil chemical index. We found that (1) the relative abundance of Acidobacteriota is highest in the soil both inside and outside the nature reserve in shrub grassland; (2) the Chao1 index of soil bacterial communities in the core protected zone and general control zone of the reserve was significantly higher than that outside the reserve (p < 0.05) in the shrub grassland. Similarly, in the herbaceous grassland, the Shannon index of soil bacterial communities was significantly higher in the core protected zone of the reserve than that outside the reserve (p < 0.05). (3) While we found no significant difference in soil bacterial community structure between inside and outside the reserve in the shrub grassland, we found that the soil bacterial community structure in the core protected zone was significantly different from that outside the reserve in the herbaceous grassland (p < 0.05); (4) we also found that higher plant productivity and soil nutrients promoted most soil dominant bacterial phyla, while higher soil pH and salinity inhibited most soil dominant bacterial phyla. Our findings thus help better understand the influencing factors of and the mechanisms behind variation in soil bacterial communities inside and outside desert grassland nature reserves.