Characteristics of Dust Weather in the Tarim Basin from 1989 to 2021 and Its Impact on the Atmospheric Environment

Abstract

Dust emission is a common catastrophic weather phenomenon in Northern China. This phenomenon not only causes environmental problems, such as air pollution, but also has an important impact on the global dust cycle and climate change. On the basis of the dust weather observation data of 44 surface meteorological stations in the Tarim Basin from 1989 to 2021, combined with the dust aerosol optical depth (DAOD), dust surface mass concentration (DUSMASS) and wind speed data, this paper analyses the spatial and temporal dust weather characteristics in the Tarim Basin over the past 33 years. Results show that the frequency of dust weather in the Tarim Basin has declined in the past 33 years. Dust weather mainly consisted of floating dust, followed by blowing dust and dust storm. This weather had a significant seasonal change, with more dust in spring and summer and less in autumn and winter. The dust weather was mainly distributed along the south edge of the Tarim Basin and the desert hinterland of Tazhong. The spatial distribution of the dust intensity (DI) index was basically consistent with the dust weather days. Moreover, the DAOD was obviously affected by dust weather and had a significant positive correlation with the number of dust weather days and the DI, suggesting the vertical concentration of dust particles to a certain extent. Wind is also one of the most important factors affecting the release of dust. The frequency of strong wind weather decreases from the northeast to the southwest, which corresponds to the distribution of the DUSMASS.

Dynamic Changes in Vegetation Ecological Quality in the Tarim Basin and Its Response to Extreme Climate during 2000–2022

“…It is an inland arid region that exhibits high susceptibility to climate change. Its vegetation is largely distributed on the basin edge, where various oasis sizes and shapes are scattered [44][45][46]. The following are this study's primary goals: (1) Breaking down the dynamic variations in extreme climate and the EQI in the Tarim Basin's vegetation distribution region in order to improve knowledge regarding extreme climate change in arid regions, providing guidance for future risk assessment and economic development in relation to climaterelated disasters, as well as a basis for preventing desertification.…”

Study on Aeolian Sand-Box Backfill Geomechanical Characteristics and Overlying Strata Control Effects

“…Aeolian sand is a prevalent resource in desertified mining areas of Xinjiang, offering wide availability and cost-effectiveness. It emerges as an optimal choice for solid backfill material in the goaf areas of this region [11][12][13][14]. Nevertheless, its application as a dry fill material in the goaf encounters evident limitations.…”