Universität zu Köln

Wu, Chenglai ORCID: 0000-0002-8397-2424, Lin, Zhaohui, Shao, Yaping ORCID: 0000-0002-2041-5479, Liu, Xiaohong ORCID: 0000-0002-3994-5955 and Li, Ying (2022). Drivers of recent decline in dust activity over East Asia. Nat. Commun., 13 (1). BERLIN: NATURE PORTFOLIO. ISSN 2041-1723

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Abstract

It is essential to understand the factors driving the recent decline of dust activity in East Asia for future dust projections. Using a physically-based dust emission model, here we show that the weakening of surface wind and the increasing of vegetation cover and soil moisture have all contributed to the decline in dust activity during 2001 to 2017. The relative contributions of these three factors to the dust emission reduction during 2010-2017 relative to 2001 are 46%, 30%, and 24%, respectively. Much (78%) of the dust emission reduction is from barren lands, and a small fraction (4.6%) of the reduction is attributed to grassland vegetation increase that is partly ascribed to the ecological restoration. This suggests that the ecological restoration plays a minor role in the decline of dust activity. Rather, the decline is mainly driven by climatic factors, with the weakening of surface wind playing the dominant role. Changes in climatic factors mainly drive the decline of East Asian dust activity in the past two decades. The weakening of surface winds plays a dominant role, and the increasing of vegetation cover and soil moisture also has key contribution

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Wu, Chenglai UNSPECIFIED orcid.org/0000-0002-8397-2424 UNSPECIFIED Lin, Zhaohui UNSPECIFIED UNSPECIFIED UNSPECIFIED Shao, Yaping UNSPECIFIED orcid.org/0000-0002-2041-5479 UNSPECIFIED Liu, Xiaohong UNSPECIFIED orcid.org/0000-0002-3994-5955 UNSPECIFIED Li, Ying UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-682347
DOI:	10.1038/s41467-022-34823-3
Journal or Publication Title:	Nat. Commun.
Volume:	13
Number:	1
Date:	2022
Publisher:	NATURE PORTFOLIO
Place of Publication:	BERLIN
ISSN:	2041-1723
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language NORTHERN CHINA; WIND EROSION; TIME-SERIES; EVENTS; CLIMATE; AEROSOL; STORMS; SOIL; UNCERTAINTY; VARIABILITY Multiple languages Multidisciplinary Sciences Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/68234