Functional Diversity and CO 2 Emission Characteristics of Soil Bacteria during the Succession of Halophyte Vegetation in the Yellow River Delta

Yu Xin, Linhui Ji, Zihao Wang, Kun Li, Xiaoya Xu () and Dufa Guo ()
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Yu Xin: College of Geography and Environment, Shandong Normal University, Jinan 250014, China
Linhui Ji: College of Geography and Environment, Shandong Normal University, Jinan 250014, China
Zihao Wang: College of Geography and Environment, Shandong Normal University, Jinan 250014, China
Kun Li: College of Geography and Environment, Shandong Normal University, Jinan 250014, China
Xiaoya Xu: College of Geography and Environment, Shandong Normal University, Jinan 250014, China
Dufa Guo: College of Geography and Environment, Shandong Normal University, Jinan 250014, China

IJERPH, 2022, vol. 19, issue 19, 1-19

Abstract: Carbon dioxide (CO 2 ) is the most important greenhouse gas in the atmosphere, which is mainly derived from microbial respiration in soil. Soil bacteria are an important part of the soil ecosystem and play an important role in the process of plant growth, mineralization, and decomposition of organic matter. In this paper, we discuss a laboratory incubation experiment that we conducted to investigate the CO 2 emissions and the underlying bacterial communities under the natural succession of halophyte vegetation in the Yellow River Delta by using high-throughput sequencing technology and PICRUSt functional prediction. The results showed that the bacterial abundance and diversity increased significantly along with the succession of halophyte vegetation. Metabolic function is the dominant function of soil bacteria in the study area. With the succession of halophyte vegetation, the rate of CO 2 emissions gradually increased, and were significantly higher in soil covered with vegetation than that of the bare land without vegetation coverage. These results helped to better understand the relationships of soil bacterial communities under the background of halophyte vegetation succession, which can help to make efficient strategies to mitigate CO 2 emissions and enhance carbon sequestration.

Keywords: greenhouse gas; microorganisms; vegetation succession; high-throughput sequencing; wetlands (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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