Spatiotemporal Analysis of Air Pollution and Climate Change Effects on Urban Green Spaces in Bucharest Metropolis DOI Creative Commons
Maria A. Zoran, Dan Savastru,

Marina N. Tautan

et al.

Atmosphere, Journal Year: 2025, Volume and Issue: 16(5), P. 553 - 553

Published: May 7, 2025

Being an essential issue in global climate warming, the response of urban green spaces to air pollution and variability because rapid urbanization has become increasing concern at both local levels. This study explored vegetation Bucharest metropolis Romania from a spatiotemporal perspective during 2000–2024, with focus on 2020–2024 period. Through synergy time series situ data, derived biophysical variables MODIS Terra/Aqua satellite this applied statistical regression, correlation, linear trend analysis assess relationships between their pairwise associations. Green were measured normalized difference index (NDVI), leaf area (LAI), photosynthetically active radiation (FPAR), evapotranspiration (ET), net primary production (NPP), which capture complex characteristics systems (gardens, street trees, parks, forests), periurban forests, agricultural areas. For center (6.5 km × 6.5 km) metropolitan (40.5 40.5 test areas, five-year investigated period, found negative correlations NDVI ground-level concentrations particulate matter two size fractions, PM2.5 (city r = −0.29; p < 0.01, −0.39; 0.01) PM10 −0.58; −0.56; 0.01), as well gaseous pollutants (nitrogen dioxide—NO2, sulfur dioxide—SO2, carbon monoxide—CO. Also, parameters, relative humidity (RH), land surface albedo (LSA) observed. These results show potential improve quality through pollutant deposition, retention, alteration health, particularly dry seasons hot summers. same period analysis, positive solar irradiance (SI) planetary boundary layer height (PBL) recorded. Because summer season’s (June–August) increase ozone, significant (r −0.51, for city −76; area, may explain degraded or devitalized under high ozone research reported temperature 2 m (TA) −0.84; scale −0.90; (LST) p< −0.68, 0.01). During seasons, ET parameters TA 0.91; SI RH 0.65; 0.83; are associated cooling effects vegetation, showing that higher density is lower temperatures. The correlation LST −0.92; explains imprint diurnal variations contrast TA. decreasing NPP over 24 years highlighted feedback warming. future cities, contribute development advanced strategies protection better mitigation increased frequency extreme events.

Language: Английский

The Effects of Urban Forest Trail Vegetation Characteristics on Environmental Health Factors – A Case Study of Fuzhou, China DOI
Fan Liu,

Wenwei Hou,

Yanqin Zhang

et al.

Urban forestry & urban greening, Journal Year: 2025, Volume and Issue: unknown, P. 128840 - 128840

Published: April 1, 2025

Language: Английский

Citations

0
Seasonal Spatiotemporal Dynamics and Gradients of the Urban Heat Island Effect in Subtropical Furnace Megacity DOI Open Access
Fu Chen,

Cong Chen,

Zhitao Fu

et al.

Sustainability, Journal Year: 2025, Volume and Issue: 17(7), P. 3238 - 3238

Published: April 5, 2025

Urban heat island (UHI) effect significantly influences the urban sustainability and health of cities varies seasonally. However, spring autumn have received less attention. Furthermore, research on long-term seasonal UHI changes impacts is insufficient. This study examines spatiotemporal dynamics gradient characteristics in spring, summer, autumn, winter Changsha, a typical subtropical “furnace city” from 2006 to 2022. (1) Spatiotemporal dynamics: The high-temperature (relatively zone zone) range expands most least autumn. Additionally, migrates northward within area, proximity core results multiple effects. (2) Gradient characteristics: proportion decreases varying degrees 5 km central point, but increases 6–8 11–13 gradients, especially 8 aggregation index (AI), contagion (CONTAG), largest patch (LPI) decreased, with patches more affected by these metrics Overall, this offers new insights into effects development UHI, which are crucial for addressing climate change, promoting sustainability, improving human well-being.

Language: Английский

Citations

0
Spatiotemporal Analysis of Air Pollution and Climate Change Effects on Urban Green Spaces in Bucharest Metropolis DOI Creative Commons
Maria A. Zoran, Dan Savastru,

Marina N. Tautan

et al.

Atmosphere, Journal Year: 2025, Volume and Issue: 16(5), P. 553 - 553

Published: May 7, 2025

Being an essential issue in global climate warming, the response of urban green spaces to air pollution and variability because rapid urbanization has become increasing concern at both local levels. This study explored vegetation Bucharest metropolis Romania from a spatiotemporal perspective during 2000–2024, with focus on 2020–2024 period. Through synergy time series situ data, derived biophysical variables MODIS Terra/Aqua satellite this applied statistical regression, correlation, linear trend analysis assess relationships between their pairwise associations. Green were measured normalized difference index (NDVI), leaf area (LAI), photosynthetically active radiation (FPAR), evapotranspiration (ET), net primary production (NPP), which capture complex characteristics systems (gardens, street trees, parks, forests), periurban forests, agricultural areas. For center (6.5 km × 6.5 km) metropolitan (40.5 40.5 test areas, five-year investigated period, found negative correlations NDVI ground-level concentrations particulate matter two size fractions, PM2.5 (city r = −0.29; p < 0.01, −0.39; 0.01) PM10 −0.58; −0.56; 0.01), as well gaseous pollutants (nitrogen dioxide—NO2, sulfur dioxide—SO2, carbon monoxide—CO. Also, parameters, relative humidity (RH), land surface albedo (LSA) observed. These results show potential improve quality through pollutant deposition, retention, alteration health, particularly dry seasons hot summers. same period analysis, positive solar irradiance (SI) planetary boundary layer height (PBL) recorded. Because summer season’s (June–August) increase ozone, significant (r −0.51, for city −76; area, may explain degraded or devitalized under high ozone research reported temperature 2 m (TA) −0.84; scale −0.90; (LST) p< −0.68, 0.01). During seasons, ET parameters TA 0.91; SI RH 0.65; 0.83; are associated cooling effects vegetation, showing that higher density is lower temperatures. The correlation LST −0.92; explains imprint diurnal variations contrast TA. decreasing NPP over 24 years highlighted feedback warming. future cities, contribute development advanced strategies protection better mitigation increased frequency extreme events.

Language: Английский

Citations

0