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干旱区地理 ›› 2026, Vol. 49 ›› Issue (5): 975-986.doi: 10.12118/j.issn.1000-6060.2025.403 cstr: 32274.14.ALG2025403

• 生态与环境 • 上一篇    下一篇

极端气候影响下黄河中下游地区宜居水平时空变化

宁晓菊1(), 张立2, 杨璐瑶3, 毛齐正1(), 刘晓卓1   

  1. 1 河南财经政法大学城乡规划学院河南 郑州 450046
    2 中国地震局地震研究所湖北 武汉 430071
    3 中国科学院大学资源与环境学院北京 100049
  • 收稿日期:2025-07-14 修回日期:2025-08-18 出版日期:2026-05-25 发布日期:2026-05-25
  • 通讯作者: 毛齐正(1984-),博士,副教授,主要从事城市生态系统服务健康福祉研究. E-mail: maoqizhenger@126.com
  • 作者简介:宁晓菊(1987-),博士,讲师,主要从事气候变化与韧性研究. E-mail: nxj0655@163.com
  • 基金资助:
    国家自然科学基金面上项目(32471662);国家自然科学基金面上项目(42576275);河南省科技攻关(252102110152);河南省科技攻关(232102110039);河南省自然科学基金青年项目(252300423230)

Spatiotemporal variations of livability level in the middle and lower reaches of the Yellow River under the impact of extreme climate

NING Xiaoju1(), ZHANG Li2, YANG Luyao3, MAO Qizheng1(), LIU Xiaozhuo1   

  1. 1 School of Urban and Rural Planning, Henan University of Economics and Law, Zhengzhou 450046, Henan, China
    2 Institute of Seismology, China Earthquake Administration, Wuhan 430071, Hubei, China
    3 College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2025-07-14 Revised:2025-08-18 Published:2026-05-25 Online:2026-05-25

摘要:

评估气候宜居水平、分析极端气候对宜居性的影响,是改善城乡人居环境的关键。以黄河中下游地区为例,根据1990—2022年493个气象站逐日观测数据,通过气候适宜性因子揭示气候宜居水平的分布,利用最大熵(MaxEnt)模型模拟极端气候对宜居性的影响。结果表明:(1) 黄河中下游地区气候宜居水平多年平均值呈南高北低、东高西低分布。33 a来,气候宜居水平的变化趋势在中游北部以不显著上升为主,在中游南部及下游地区以微显著下降为主。(2) 中游北部夏季减湿、1月升温及年适宜温度天数增加,中游南部和下游地区夏季增温和冬季日照适宜性下降导致热不舒适上升,分别是二者气候宜居水平变化的主因。(3) 极端高温、极端低温和极端降水对黄河中下游地区气候宜居性的影响均以中和高强度为主,在空间上呈南高北低、东高西低分布。但极端降水影响强度的年际变幅最大,极端低温次之,极端高温最小。(4) 相对于中游北部,中游南部和下游地区热浪天数、极端降水量和极端降水天数的发生频率较高,霜冻天数和寒冷天数差值大是该区气候宜居性受极端气候影响高的主因。

关键词: 适宜性因子, 气候宜居水平, 极端气候, 影响强度, 时空变化, 黄河中下游

Abstract:

Assessing climate livability and analyzing the impacts of extreme climates on livability are critical for improving the human settlements in both urban and rural areas. Using the middle and lower reaches of the Yellow River in China as the study area, this study maps the spatial distribution of climate livability based on climatic suitability factors and then simulates the impacts of extreme climates on livability using the MaxEnt model. The analysis utilizes daily observational data from 493 meteorological stations from 1990 to 2022. The main findings are as follows: (1) The multi-year average climate livability in the Yellow River was higher in the south and east and lower in the north and west. Over 33 years, livability trends were non-significantly upward in the northern middle reaches, but slightly significantly downward in the southern middle reaches and lower reaches. (2) Variations in climate livability were driven by decreased summer humidity, high January temperatures, and increased suitable-temperature days in the northern middle reaches, as opposed to intensified summer warming and reduced sunshine suitability in winter in the southern middle reaches and lower reaches. (3) Extreme high and low temperatures and extreme precipitation generally had moderate-to-high impacts on livability, with strong effects in the south and east and weaker effects in the north and west. Interannual variability was highest for extreme precipitation, followed by extreme low temperatures, and lowest for extreme high temperatures. (4) Compared to the northern middle reaches, the southern middle reaches and lower reaches were more affected by extreme climate due to the higher frequency of heatwave days, extreme precipitation amounts, and extreme precipitation days. The large discrepancies between frost days and cold days is the main reason why the climate livability of this area is highly affected by extreme climate.

Key words: suitability factors, climate livability level, extreme climate, impact intensity, spatiotemporal variations, middle and lower reaches of the Yellow River