欢迎访问《应用生态学报》官方网站,今天是

应用生态学报 ›› 2026, Vol. 37 ›› Issue (8): 2765-2770.doi: 10.13287/j.1001-9332.202608.029

• • 上一篇    下一篇

1994—2023年辽宁省气溶胶光学厚度时空变化特征

赵胡笳1*, 赵恒恒2, 王鹏3, 尚楠轩2, 杨周2, 赵梓淇1, 李荣平1, 车慧正2   

  1. 1中国气象局沈阳大气环境研究所, 沈阳 110166;
    2中国气象科学研究院, 北京 100081;
    3黑龙江省气候中心, 哈尔滨 150030
  • 收稿日期:2026-01-06 修回日期:2026-07-04 出版日期:2026-08-18 发布日期:2027-02-18
  • 通讯作者: *E-mail: zhaohj@iaesy.cn
  • 作者简介:赵胡笳, 女, 1985年生, 研究员。主要从事气溶胶生态环境效应研究。E-mail: zhaohj@iaesy.cn
  • 基金资助:
    辽宁省农业气象灾害重点实验室联合开放基金项目(2026SYIAEKFMS30)和国家自然科学基金项目(42475193)

Spatial correlation network characteristics and influencing factors of urban ecological vulnerability in the Yellow River Basin, China

ZHAO Hujia1*, ZHAO Hengheng2, WANG Peng3, SHANG Nanxuan2, YANG Zhou2, ZHAO Ziqi1, LI Rongping1, CHE Huizheng2   

  1. 1Institute of Atmospheric Environment, China Meteorological Administration, Shen-yang 110166, China;
    2Chinese Academy of Meteorological Sciences, Beijing 100081, China;
    3Heilongjiang Ecological Meteorological Center, Harbin 150030, China
  • Received:2026-01-06 Revised:2026-07-04 Online:2026-08-18 Published:2027-02-18

摘要: 气溶胶作为大气中的重要组成部分,通过散射和吸收太阳辐射对区域气候和环境产生显著影响。为揭示辽宁省气溶胶光学特性的时空演变规律,本研究基于1994—2023年辽宁省气溶胶光学厚度(AOD)再分析资料,分析辽宁省AOD的时空分布特征和演变趋势。结果表明:1994—2023年,辽宁省年均AOD呈南高北低、沿海高内陆低的分布特征,南部及环渤海地区为高值中心(平均值0.43),西部和北部AOD年均值最低(0.30)。1994—2012年,辽宁省AOD年均增加0.007,2013—2023年,年均降低0.011,印证了国家减排政策对东北区域气溶胶长期减少的决定性作用。受春季沙尘天气、夏季高温高湿条件下气溶胶吸湿增长及边界层抬升的共同影响,辽宁省月尺度AOD呈单峰型分布,1—2月处于全年最低水平(0.20),6月达到峰值(0.58),11—12月回归到冬季低值区,夏季气溶胶负荷约为冬季的2.9倍。研究成果可为巩固空气质量改善成果提供数据支撑。

关键词: 气溶胶光学厚度, 空间分布, 变化趋势, 辽宁省

Abstract: As an important component of the atmosphere, aerosols significantly influence regional climate and environment through scattering and absorption of solar radiation. To reveal the spatiotemporal evolution patterns of aerosol optical properties in Liaoning Province, we analyzed the spatiotemporal distribution characteristics and evolution trends of aerosol optical depth (AOD) in Liaoning Province based on the reanalysis data of AOD from 1994 to 2023. The results showed that the annual average AOD from 1994 to 2023 in Liaoning Province exhibited a distribution pattern of higher values in the south and lower values in the north, with the southern and coastal areas being the high-value centers (average value 0.43), while that in the west and north were the lowest (0.30). From 1994 to 2012, the annual average AOD in Liaoning Province increased by 0.007, and it decreased by 0.011 from 2013 to 2023, confirming the critical role of national emission reduction policies in the long-term reduction of aerosols in the northeastern region. Due to the combined effects of spring dust weather, high-temperature and high-humidity conditions in summer, and the increase in aerosol hygroscopicity and boundary layer uplift the monthly scale AOD in Liaoning Province, which showed a single-peak distribution. From January to February, the AOD was at the lowest level of the year (0.20), reaching its peak in June (0.58), and returning to the low value area in winter from November to December. The summer aerosol load was about 2.9 times that of winter. The results could provide data support for consolidating the achievements of air quality improvement.

Key words: aerosol optical depth, spatial distribution, trend of change, Liaoning Province