Japan Geoscience Union Meeting 2023

Presentation information

[E] Online Poster

A (Atmospheric and Hydrospheric Sciences ) » A-HW Hydrology & Water Environment

[A-HW18] Material transportation and cycling at the land-sea interface: from headwaters to the ocean

Thu. May 25, 2023 10:45 AM - 12:15 PM Online Poster Zoom Room (5) (Online Poster)

convener:Takahiro Hosono(Faculty of Advanced Science and Technology, Kumamoto University), Syuhei Ban(The University of Shiga Prefecture), Mitsuyo Saito(Graduate School of Advanced Science and Engineering, Hiroshima University), Adina Paytan(University of California Santa Cruz)


On-site poster schedule(2023/5/26 17:15-18:45)

10:45 AM - 12:15 PM

[AHW18-P18] Community structure of airborne micro-organisms flowing into forests by rainfall.

*Sakae Horisawa1, Yuko Ito2, Toru Okamoto2, Keiji Takase3, Masahiro Kobayashi2 (1.Kochi University of Technology, 2.Forestry and Forest Products Research Institute, Japan, 3.Ishikawa Prefectural University)

Keywords:Rainfall monitoring, Forest environment, Airborne microbes, Amplicon sequencing

There is still little research on micro-organisms flowing into Japanese forests with aerosols and other substances from the continent. Airborne micro-organisms are thought to be transported with fine dust and aerosols and enter forests by rainwater. In this study, we collected rainwater from outside and inside forests, soil passages, and stream water at two sites across a mountain range in Japan Island; one site (Ishikawa Prefecture) was heavily influenced by transboundary air pollutant inputs from the continent, and the other site (Ibaraki Prefecture) was heavily influenced by inputs from the Tokyo metropolitan area. Microbes in the water samples were collected to extract the microbe's DNAs and community structures of bacteria and fungi were examined by amplicon sequencing.