| 土地利用方式对岩溶断陷盆地土壤细菌和真核生物群落结构的影响 |
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| 关键词:karst graben basin land-use type bacteria eukaryota co-occurrence |
| 基金项目:国家重点研发计划课题(编号: 2016YFC0502501);中国地质科学院基本业务费(编号: 2020022) |
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| Land-use Types Leading to Distinct Ecological Patterns of Soil Bacterial and Eukaryota Communities in Karst Graben Basin |
| Soil organism is an important part of soil ecosystem and plays an important role in material cycle and energy transformation of soil ecosystem. In order to reveal the influence of land use on soil organisms in karst graben basin, the authors studied soil bacteria and eukaryotes from abandoned farmland, grassland, artificial forest and natural forest by using 16S rRNA and 18S rRNA high-throughput sequencing technology coupled with soil physical-chemical properties and soil stoichiometry characteristics of carbon, nitrogen and phosphorus. The change rule of C: N, C: P and N: P ratio was in order of abandoned farmland < grassland < artificial forest < natural forest, and the diversity and co-occurrence of soil bacteria and eukaryote showed opposite change rule. Soil P, K and Ca are the key factors affecting the community structure and diversity of soil bacteria and eukaryotes in the karst graben basin. RB41 is the key group of soil organism in karst graben basin. The results of this study provide a theoretical basis for rocky desertification control and karst ecological restoration. |
| LI Qiang.2021.Land-use Types Leading to Distinct Ecological Patterns of Soil Bacterial and Eukaryota Communities in Karst Graben Basin[J].Acta Geoscientica Sinica,42(3):417-425. |
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