Imaging of micro-organisms on topsoil particles collected from different landscape in the Gobi Desert

Abstract

This study shows the results of field experiments of soil particles saltation and laboratory experiments of imaging of the surface structure of dust particles. In the Gobi area, dust occurs when the wind speed at ground level exceeds 7 m/s. It has been reported that bacteria are attached to dust, but the details of its attachment are unknown. It is also expected that these bacteria will fly at the time of occurrence of dust, and fundamental research is important to clarify the relationship between dust components and bacteria.

MODIS Soil Tillage Indexから推定した枯れ草植被率のダスト発生への影響：地上実況気象通報式(SYNOP)データによる検証

“…Dust occurrence, resulting from wind erosion, has a number of environmental and socioeconomic consequences because of its effects on air pollution, the health of humans and livestock, and the climate (Hagiwara et al, 2020;Hagiwara et al, 2021;Kuribayashi et al, 2019;Middleton, 2017;Miller and Tegen, 1998;Onishi et al, 2012). Many global and regional models have been developed to simulate dust emission, transport, and deposition processes (e.g., Tanaka and Chiba, 2005;Uno et al, 2001;Woodage et al, 2010).…”