文献类型：期刊文献

英文题名：Soil FungiIs MoreSensitive to High-AltitudeChange than Soil Bacteria InAbies Smithii Forest

作者：Fu, Fangwei[1,2,3,4] Li, Jiangrong[1,2,3,4] Li, Shuaifeng[5] Chen, Wensheng[1,2,3,4] Ding, Huihui[1,2,3,4] Xiao, Siying[1,2,3,4] Li, Yueyao[1,2,3,4]

第一作者：Fu, Fangwei

机构：[1] Research Institute of Tibet Plateau Ecology, Tibet Agriculture & Animal Husbandry University, Nyingchi, Tibet, 860000, China; [2] Key Laboratory of Forest Ecology in Tibet Plateau, Ministry of Education, Nyingchi, Tibet, 860000, China; [3] National Key Station of Field Scientific Observation & Experiment, Nyingchi, Tibet, 860000, China; [4] Key Laboratory of Alpine Vegetation Ecological Security in Tibet, Nyingchi, Tibet, 860000, China; [5] Institute of Highland Forest Science, Chinese Academy of Forestry, Kunming, 650224, China

年份：2022

外文期刊名：SSRN

收录：EI(收录号：20220155918)

语种：英文

外文关键词：Climate change - Correlation methods - Ecosystems - Forestry - Fungi - pH effects - Soil moisture - Soil temperature

摘要：Soil microbial communities at high-altitude forests are more sensitive to global climate change, but the variation in the soil microbial diversity and community composition along the altitude gradients and their relation with environmental factors remain unclear. We revealed the maintenance mechanism of soil microbial diversity in high-altitude forest ecosystems by analyzing the changes of soil bacterial and fungal communities and responses of soil nutrients to the soil microbial community using Illumina high-throughput sequencing, one-way ANOVA, Pearson correlation, non-metric multidimensional scalinganalysis, co-occurrence network analysis, ANOSIM, and redundancy analysis(RDA) at altitudes of 3500, 3900, and 4300 m in the Abies smithii forest, which is distributed in the Sygera Mountains , Tibetan Plateau. Our results indicated thatthe four dominant bacterial phyla at the phylum taxonomic level were Proteobacteria, Actinobacteria, Acidobacteriota, and Choroflexi, whilethe three most dominant fungal phyla were Basidiomycota, Ascomycota, and Mortierllomycota. Soil fungal and bacterial diversity at different elevations showed no significant difference. Soil bacterial community composition displayed no significant difference among different altitudes, while soil fungal community composition displayed significant difference among different altitudes. Soil pH exhibited significant negative correlation with soil bacterial diversity. Elevation gradient changes in soil bacterial community composition had no significant effect, but had a significant effect on soil fungal communities and also indicated that soil fungi were more sensitive than bacteria in response to elevation. RDA showed that soil pH had a significant effect on the soil bacterial community, whereas soil fungal species composition was more influenced by total phosphorus, soil water content, altitude, and soil temperature. The co-occurrence network analysis showed that the positive edges of the networks among soil microbial taxa at different altitudes accounted for a high proportion, and symbiotic relationships dominated the microbial networks. Soil bacteria networks were more complex than soil fungi. ? 2022, The Authors. All rights reserved.