Mapping Heatwave Socioeconomic Exposure in the Chinese Mainland for the Period of 2000–2019 DOI Creative Commons
Wei Wu, Qingsheng Liu, He Li

et al.

Atmosphere, Journal Year: 2024, Volume and Issue: 16(1), P. 28 - 28

Published: Dec. 29, 2024

Mounting evidence suggests an increasing heatwave risk in the Chinese mainland, posing notable threats to public health and socioeconomic landscape. In a comprehensive analysis, considering both climate factors, including Gross Domestic Product (GDP) population dynamics, we systematically evaluated spatiotemporal distribution of exposure mainland from 2000 2019, utilizing more hazard index (HHI) that synthesizes intensity, frequency, duration as factor for first time. Results show (1) Heatwave is pronounced eastern China, particularly Southeast (SE), North China (NC), Southwest (SW) regions. From showed overall upward trend, with most rapid escalation observed SE, NC, SW Population manifests clustered expansion pattern, while GDP demonstrates centralized distribution. (2) Climatic factors exert influence on exposure, predominantly impacts economic exposure. The combination contributes less rates, except Northeast (NE) regions where it most. (3) High-risk hotspot cities include Shanghai, Beijing, Chongqing, Guangzhou, Wuhan, Zhengzhou, Hangzhou, Xi’an, Tianjin, Nanjing. These findings underscore urgent need targeted interventions mitigation strategies these vulnerable areas.

Language: Английский

Improving Resilience to Extreme Heat Events Through Green Space Morphology: A Threshold-Based Perspective DOI

Yixin DAI,

Jian‐Jun Zhang, Shu Fu

et al.

Sustainable Cities and Society, Journal Year: 2025, Volume and Issue: unknown, P. 106278 - 106278

Published: March 1, 2025

Language: Английский

Citations

1

Spatiotemporal dynamic mapping of heat exposure risk for different populations in city based on hourly multi-source data DOI
Junmao Zhang,

Xia Yao,

Yuan Chen

et al.

Sustainable Cities and Society, Journal Year: 2024, Volume and Issue: 107, P. 105454 - 105454

Published: April 18, 2024

Language: Английский

Citations

8

Social-economic transitions and vulnerability to extreme temperature events from 1960 to 2020 in Chinese cities DOI Creative Commons
Yang Xie,

Ziqiao Zhou,

Sun Qinghua

et al.

iScience, Journal Year: 2024, Volume and Issue: 27(3), P. 109066 - 109066

Published: Feb. 1, 2024

Climate change leads to more frequent and intense extreme temperature events, causing a significant number of excess deaths. Using an epidemiological approach, we analyze all-cause deaths related heatwaves cold spells in 2,852 Chinese counties from 1960 2020. Economic losses associated with these events are determined through the value statistical life. Findings reveal that cold-related cumulative (1,133 thousand) approximately 2.5 times higher than heat-related deaths, despite increase fatalities recent decades. Monetized mortality due is estimated at 1,284 billion CNY, while economic loss 1,510 CNY. Notably, cities located colder regions experience vice versa. development does not significantly reduce risks across China. This study provides insights into spatial-temporal heterogeneity mortality, essential for policymakers ensuring long-term climate adaptation sustainability.

Language: Английский

Citations

5

China’s public health initiatives for climate change adaptation DOI Creative Commons
John S. Ji,

Yanjie Xia,

Linxin Liu

et al.

The Lancet Regional Health - Western Pacific, Journal Year: 2023, Volume and Issue: 40, P. 100965 - 100965

Published: Nov. 1, 2023

China's health gains over the past decades face potential reversals if climate change adaptation is not prioritized. temperature rise surpasses global average due to urban heat islands and ecological changes, demands urgent actions safeguard public health. Effective need consider urbanization trends, underlying non-communicable diseases, an aging population, future pandemic threats. Climate initiatives strategies include green space, healthy indoor environments, spatial planning for cities, advance location-specific early warning systems extreme weather events, a holistic approach linking carbon neutrality co-benefits. Innovation technology uptake crucial opportunity. successful can foster international collaboration regionally beyond.

Language: Английский

Citations

12

Role of adaptation measures in addressing heatwave exposure in China DOI Creative Commons
Qinmei Han,

Qingchen Chao,

Shao Sun

et al.

Advances in Climate Change Research, Journal Year: 2024, Volume and Issue: 15(1), P. 148 - 157

Published: Feb. 1, 2024

Heatwave exposure has increased dramatically because of climate warming and population growth, along with their interactive effects. However, effective adaptation measures can reduce these impacts. Nonetheless, the dynamic changes, regional inequality in adaptive capacity potential contributions to reducing future remain unclear. This study quantifies impact underscores variations heatwave magnitudes, levels China. We projected using air-conditioner penetration, factoring cooling requirements individuals' purchasing power. Utilising gross domestic product (GDP) data from four Shared Socioeconomic Pathways (SSP1, SSP2, SSP3 SSP5) daily temperature SSP-based emission scenarios (SSP1-2.6, SSP2-4.5, SSP3-7.0 SSP5-8.5), we estimated duration, avoided impacts through across China its sub-regions. Results show a substantial increase duration Southwest Southern China, especially under SSP5-8.5 scenario, projection 163.2 ± 36.7 d during 2081–2100. Under SSP3|SSP3-7.0 total reaches 156.4 76.8 billion person per year, which is highest among all 23 times greater than that 1986–2005 without adaptation. Upon considering measures, noteworthy reduction observed, SSP5|SSP5-8.5 scenarios, reductions (62.6±3.9) % (65.8±5.1) %, respectively, compared scenario Remarkable disparities are also evident, up 50% different regions. The implementation environmentally friendly notably address change, thereby alleviating profound threats posed human well-being.

Language: Английский

Citations

4

Characteristics and Driving Mechanisms of Heatwaves in China During July and August DOI Creative Commons
Jinping Liu, Mingzhe Li

Atmosphere, Journal Year: 2025, Volume and Issue: 16(4), P. 434 - 434

Published: April 8, 2025

Against the backdrop of global warming, heatwaves in China have become more frequent, posing serious risks to public health and socio-economic stability. However, existing identification methods lack precision, driving mechanisms remain unclear. This study applies Excess Heat Factor (EHF) characterize across from 2013 2023, analyzing their spatiotemporal patterns exploring key drivers such as atmospheric circulation soil moisture. Key findings reveal significant regional differences: (1) Frequency Duration—The southeastern coastal regions (e.g., Yangtze River Delta) experience higher annual heatwave frequencies (1.75–3.5 events) but shorter durations (6.5–8.5 days). In contrast, arid northwest has both frequent (1.5–3.5 events per year) prolonged (8.5–14.5 days) heatwaves, while Tibetan Plateau sees weaker events. (2) Driving Factors—Heatwaves Delta are primarily driven by an intensified subtropical high, leading subsidence clear-sky conditions. Fujian, anomalous low-level winds enhance heat accumulation, areas show strong moisture–temperature coupling, where drier soils intensify warming. Conversely, moisture a influence on Plateau, suggesting dominant control. It is important note that EHF index used this does not directly account for humidity, which may limit its applicability humid regions. Additionally, ERA5 ERA5-Land reanalysis data were systematically validated against ground observations, introducing potential uncertainties.

Language: Английский

Citations

0

Can combined wind and solar power meet the increased electricity load on heatwave days in China after the carbon emission peak? A case study in southern Hebei DOI
Jie Bai, Mingxin Zhao, Xiaohui Qin

et al.

Journal of Cleaner Production, Journal Year: 2024, Volume and Issue: 478, P. 143828 - 143828

Published: Oct. 9, 2024

Language: Английский

Citations

2

Sensitivity of Vegetation Productivity to Extreme Droughts across the Yunnan Plateau, China DOI Creative Commons
Lin Chen, Yun‐Ling He, Zhenyan Wang

et al.

Atmosphere, Journal Year: 2023, Volume and Issue: 14(6), P. 1026 - 1026

Published: June 15, 2023

Extreme drought has negative impacts on the health of vegetation and stability ecosystems. In this study, CASA model was employed to estimate net primary productivity over Yunnan Plateau. The time-lag effects were observed within a 0–6 month period extreme droughts using Pearson correlation coefficient. resistance during quantified, recovery capability following these events analyzed ARIMA model. Moreover, study investigated response across diverse altitudinal gradients. results showed that: (1) This round led decrease in NPP (2) Vegetation exhibits 1–3-month lag drought, with forests showing slower responses than grasslands shrubs higher drought. Except for agricultural vegetation, most other types are able recover their year. (3) above 3000 m is less susceptible With increasing elevation, exhibit an earlier increase resistance, but lower elevation demonstrates better from events. Shrub shows highest at elevations between 3000–4000 m, middle high have capacity those low elevations. Grassland increased recovery. Agricultural elevations, no significant differences capacity. not only effect ecosystem, also affect its resilience future To adapt climate change, research should emphasize role small-scale vegetation’s

Language: Английский

Citations

5

Analyzing Cooling Island Effect of Urban Parks in Zhengzhou City: A Study on Spatial Maximum and Spatial Accumulation Perspectives DOI Open Access

Manting He,

Chaobin Yang

Sustainability, Journal Year: 2024, Volume and Issue: 16(13), P. 5421 - 5421

Published: June 26, 2024

As a result of urbanization, cities worldwide are experiencing urban heat island (UHI) challenges. Urban parks, which essential components blue and green landscapes, typically have lower temperatures in providing outdoor comfort than their surroundings with impervious surfaces. This phenomenon, known as the park cooling effect (PCIE), has been recognized an effective approach to mitigate negative effects UHI context sustainable development environment. To cope serious challenge guide planning design for Zhengzhou City, is one China’s new first-tier cities, 35 parks city were analyzed this study. Remotely sensed land surface temperature (LST) reflectance images by Landsat 9 Sentinel-2 selected data sources. A cubic polynomial model that depicts relationship between LST distance from edge was first built each park. Based on model, spatial maximum perspective metrics (including area (PCA) efficiency (PCE)) accumulation intensity (PCI) gradient (PCG)) calculated quantify PCIE The divided into three groups using hierarchical clustering method further analysis. For group, statistically analyzed, main factors influencing identified Spearman correlation coefficient. results indicate following: (1) exhibit obvious PCIE. 133.95 ± 41.93 m. mean 3.01 1.23 °C within range. (2) varies among different types parks. Parks large areas covered certain water bodies generally higher PCA, PCI, PCG values. However, small mainly vegetation show PCE values, makes them more economical exerting (3) Park landscape shape index (LSI) positively correlated PCG. there threshold PCI. approximately 19 ha can produce PCI smaller one. In central limited space, areas, complex shapes, predominant coverage be designed achieve efficiency.

Language: Английский

Citations

1

Quantifying the heatwave magnitude over the Tibetan Plateau from 1979 to 2022 with the comprehensive heatwave index DOI
Tongchang Zhang, Xiuguo Liu,

Gang Deng

et al.

Published: July 10, 2024

Language: Английский

Citations

1