[1]LI Yanjie,JIANG Mengyun,YANG Junnian,et al.Analysis of Soil Bacterial Communities in Water Level Fluctuating Zone of Three Gorges Reservoir Area with Different Re-vegetation Types[J].Research of Soil and Water Conservation,2022,29(02):112-117+124.
Copy
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
29
Number of periods:
2022 02
Page number:
112-117+124
Column:
Public date:
2022-03-20
- Title:
-
Analysis of Soil Bacterial Communities in Water Level Fluctuating Zone of Three Gorges Reservoir Area with Different Re-vegetation Types
- Author(s):
-
LI Yanjie1, JIANG Mengyun1, YANG Junnian2, LIU Renhua1, ZHONG Yan2, WANG Jing1
-
(1.College of Biology and Food Engineering, Chongqing Three Gorges University, Chongqing 404100, China; 2.College of Teacher Education, Chongqing Three Gorges University, Chongqing 404100, China)
-
- Keywords:
-
hydro-fluctuation belt in Three Gorges Reservoir area; vegetation; soil; bacterial community
- CLC:
-
S154.38
- DOI:
-
-
- Abstract:
-
In order to study the effect of different re-vegetation types on soil bacterial communities in the water level fluctuating zone of the Three Gorges Reservoir area, three different soil samples, including pure grassland(A1), pure woodland(A2)and covered woodland(A3), were used for physical and chemical factor detection and 16S rRNA gene sequencing, and the effects of different re-vegetation types on soil bacterial communities in the fluctuating zone of the Three Gorges Reservoir area were analyzed. The results showed that there were no significant differences in the values of pH value, total nitrogen(TN)and total phosphorus(TP)between different types of soil samples; there was no significant difference between the contents of soil organic carbon(SOC)of A1 and A3, which was significantly higher than A2(p<0.05). Correlation analysis showed that the ACE index and Shannon index of soil bacterial community were significantly positively related to soil SOC and TN content(p<0.05), Chao1 index was significantly positively related to soil SOC content(p<0.05). There was no significant difference in the dominant bacterial populations in different soils. The relative abundance of each of the six dominant populations of bacteria at genus level was significantly related to soil SOC and TN contents, respectively(p<0.05). Redundancy analysis showed that SOC was the mainly dominant significant factor of soil bacterial community structure(p<0.05). It is shown that there is no significant difference in the dominant populations of soil bacteria under different re-vegetation types in Water Level Fluctuating Zone, and the structure of soil bacterial community is mainly influenced by soil SOC.