Spatiotemporal variation in the occurrence of sand-dust events and its influencing factors in the Beijing-Tianjin Sand Source Region, China, 1982–2013

Spatiotemporal variation in the occurrence of sand-dust events and its influencing factors in the... The Beijing-Tianjin Sand Source Region (BTSSR) is an ecological barrier for Beijing, the capital of China. Exploration of the spatiotemporal patterns of sand-dust weather and their influencing factors is important for effective management of regional environments. Changes in patterns of sand-dust weather days from 1982 to 2013 were analyzed based on remote sensing and meteorological observation data, and the contributions of meteorological and vegetation factors to the vari- ation in sand-dust events at the regional and sub-regional scales were investigated. The results showed that the number of sand-dust weather days in the BTSSR decreased with decreasing wind speed and variations in precipitation and vegetation restoration, from 24 in 1982 to 5 in 2013. The occurrence of sand-dust weather was related mainly to the mean wind speed during March and May, the cumulative precipitation from the antecedent July to the concurrent June, and the maximum vegetation cover of the antecedent year. These factors could explain 76.4% of the variation in sand-dust events, with meteorological factors, including wind speed and precipitation, contributing about 57%. The spatiotemporal patterns of sand-dust weather and their specific influencing factors were spatially heterogenous. In 70% of sub-regions, the influenc- ing factors explained at least 50% of http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Regional Environmenal Change Springer Journals

Spatiotemporal variation in the occurrence of sand-dust events and its influencing factors in the Beijing-Tianjin Sand Source Region, China, 1982–2013

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Publisher
Springer Berlin Heidelberg
Copyright
Copyright © 2018 by Springer-Verlag GmbH Germany, part of Springer Nature
Subject
Environment; Climate Change; Climate Change/Climate Change Impacts; Oceanography; Geography, general; Regional/Spatial Science; Nature Conservation
ISSN
1436-3798
eISSN
1436-378X
D.O.I.
10.1007/s10113-018-1365-z
Publisher site
See Article on Publisher Site

Abstract

The Beijing-Tianjin Sand Source Region (BTSSR) is an ecological barrier for Beijing, the capital of China. Exploration of the spatiotemporal patterns of sand-dust weather and their influencing factors is important for effective management of regional environments. Changes in patterns of sand-dust weather days from 1982 to 2013 were analyzed based on remote sensing and meteorological observation data, and the contributions of meteorological and vegetation factors to the vari- ation in sand-dust events at the regional and sub-regional scales were investigated. The results showed that the number of sand-dust weather days in the BTSSR decreased with decreasing wind speed and variations in precipitation and vegetation restoration, from 24 in 1982 to 5 in 2013. The occurrence of sand-dust weather was related mainly to the mean wind speed during March and May, the cumulative precipitation from the antecedent July to the concurrent June, and the maximum vegetation cover of the antecedent year. These factors could explain 76.4% of the variation in sand-dust events, with meteorological factors, including wind speed and precipitation, contributing about 57%. The spatiotemporal patterns of sand-dust weather and their specific influencing factors were spatially heterogenous. In 70% of sub-regions, the influenc- ing factors explained at least 50% of

Journal

Regional Environmenal ChangeSpringer Journals

Published: Jun 6, 2018

References

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