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author:

Wang, W. (Wang, W..) [1] | Song, H. (Song, H..) [2] | Min, R. (Min, R..) [3] | Wang, Q. (Wang, Q..) [4] (Scholars:王前锋) | Qi, M. (Qi, M..) [5]

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Abstract:

Land use and land cover change (LUCC) can alter surface properties, such as albedo, roughness, and vegetation coverage, directly affecting dust emissions and aerosol concentrations, leading to variations in direct radiative forcing (DRF) of dust aerosols and consequently impacting the climate. This study utilized the Weather Research and Forecasting model with Chemistry (WRF-Chem) to quantify the impact of LUCC in northern China from 2000 to 2020 on dust aerosol DRF. Results indicated that LUCC's influence on shortwave radiative forcing of dust was significantly greater than its influence on longwave radiative forcing and exhibited obvious seasonal variations. Overall, LUCC can cause net direct radiative forcing to increase by 5.3 W m−2 at the surface and decrease by 7.8 W m−2 in the atmosphere. Different types of LUCC transformation showed distinct impacts on dust aerosol DRF, with the conversion from sparse vegetation to barren land had the most significant effect on net radiative intensity, resulting in a decrease of 8.1 W m−2 at the surface, an increase of 12.2 W m−2 in the atmosphere, and an increase of 4.1 W m−2 at the top of the atmosphere. Conversely, the conversion from barren land to sparse vegetation led to surface cooling and atmospheric warming. These findings are of great significance for enhancing our knowledge of the effects of LUCC on the radiative balance of dust aerosols. © 2024 Elsevier Ltd

Keyword:

China Climate Direct radiative forcing Dust aerosol LUCC WRF-Chem

Community:

  • [ 1 ] [Wang W.]Laboratory of Geospatial Technology for the Middle and Lower Yellow River Regions (Henan University), Ministry of Education, Kaifeng, 475004, China
  • [ 2 ] [Wang W.]Henan Key Laboratory of Air Pollution Control and Ecological Security, Henan University, Kaifeng, 475004, China
  • [ 3 ] [Song H.]Laboratory of Geospatial Technology for the Middle and Lower Yellow River Regions (Henan University), Ministry of Education, Kaifeng, 475004, China
  • [ 4 ] [Song H.]Henan Key Laboratory of Air Pollution Control and Ecological Security, Henan University, Kaifeng, 475004, China
  • [ 5 ] [Min R.]Laboratory of Geospatial Technology for the Middle and Lower Yellow River Regions (Henan University), Ministry of Education, Kaifeng, 475004, China
  • [ 6 ] [Min R.]College of Geography and Environmental Science, Henan University, Kaifeng, 475004, China
  • [ 7 ] [Wang Q.]College of Environmental & Safety Engineering, Fuzhou University, Fuzhou, 350116, China
  • [ 8 ] [Qi M.]Laboratory of Geospatial Technology for the Middle and Lower Yellow River Regions (Henan University), Ministry of Education, Kaifeng, 475004, China
  • [ 9 ] [Qi M.]College of Geography and Environmental Science, Henan University, Kaifeng, 475004, China

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Source :

Journal of Environmental Management

ISSN: 0301-4797

Year: 2024

Volume: 368

8 . 0 0 0

JCR@2023

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ESI Highly Cited Papers on the List: 0 Unfold All

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30 Days PV: 0

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