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- Title
高寒草甸鼠兔活动对土壤微生物群落特征的影响.
- Authors
章妮; 陈克龙; 祁闻
- Abstract
The activity of pika seriously affects the diversity and stability of alpine meadow ecosystem. Soil microbes are highly sensitive to environmental changes, and their community characteristics are affected by the activity of pika. To explore the effects of pika activities on soil microbial community structure and diversity, in this study, soil microorganisms disturbed by activities of pika in the alpine meadow of Qinghai Lake were taken as the research object, and high-throughput sequencing was conducted based on bacterial 16S rRNA. The dominant flora of soil bacteria under different treatments was similar, mainly including Proteobacteria and Acidobacteria. Compared with the alpine meadow under the natural condition, pika activity resulted in a significant increase in soil bacterial community richness and a significant decrease in soil bacterial diversity index (P <0.05). Soil bacterial community structure was significantly affected by pika activity (P <0.05). 104 different bacterial communities were found between control and pika activity groups. Only 3 different bacterial communities were found in subsurface soil (10-20 cm) under pika activity, and 52 different bacterial communities were found in surface soil (0-10 cm) under pika activity. FAPROTAX prediction analysis showed that the functional groups of soil bacterial community were mostly functional groups related to carbon and nitrogen metabolism, and some were related to anaerobic respiration pathways and human diseases. In general, pika activity significantly affected the community structure and diversity characteristics of soil bacteria in alpine meadow, and the response of surface soil bacterial community to pika activity was more obvious.
- Subjects
QINGHAI Sheng (China); MOUNTAIN meadows; MOUNTAIN ecology; SOIL microbiology; BACTERIAL communities; SOIL microbial ecology; BACTERIAL diversity; NUCLEOTIDE sequencing; MOUNTAIN soils
- Publication
Ecological Science, 2023, Vol 42, Issue 3, p83
- ISSN
1008-8873
- Publication type
Article
- DOI
10.14108/j.cnki.1008-8873.2023.03.011