Changes in Urban Green Spaces in the Pearl River Delta Urban Agglomeration: From the Perspectives of the Area, Spatial Configuration, and Quality DOI Creative Commons
Tianci Yao, LI Sheng-fa, Lixin Su

и другие.

Remote Sensing, Год журнала: 2024, Номер 16(23), С. 4369 - 4369

Опубликована: Ноя. 22, 2024

Urban green spaces (UGSs) are integral to urban ecosystems, providing multiple benefits human well-being. However, previous studies mainly focus on the quantity or quality of UGSs, with less emphasis a comprehensive analysis. This study systematically examined spatiotemporal UGS dynamics in Pearl River Delta agglomeration (PRDUA) China from perspectives area, spatial configuration, and quality, using high resolution (30 m) Landsat-derived land-cover data Normalized Difference Vegetation Index (NDVI) during 1985–2021. Results showed area both old districts expanded areas across all nine cities PRDUA has experienced dramatic reduction 1985 2021, primarily due conversion cropland forest into impervious surfaces. Spatially, fragmentation trend UGSs initially increased then weakened around 2010 cities, but an inconsistent process different areas. In districts, was loss large patches; contrast, it caused by division patches most cities. The area-averaged NDVI general upward nearly greening more prevalent than that areas, suggesting negative impacts urbanization have been balanced positive effects climate change, urbanization, initiatives PRDUA. These findings indicate does not necessarily correspond improvement states. We therefore recommend incorporating three-dimensional analytical framework ecological monitoring construction efforts obtain understanding states support effective infrastructure stewardship.

Язык: Английский

Wildfire risk in Alaska: Spatial association between social vulnerability, wildfire hazard, and wildfire mitigation programs DOI Creative Commons
Xiaoyu Liang, Desheng Liu

Landscape and Urban Planning, Год журнала: 2025, Номер 258, С. 105321 - 105321

Опубликована: Фев. 17, 2025

Язык: Английский

Процитировано

0
Compounding effects of climate change and WUI expansion quadruple the likelihood of extreme-impact wildfires in California DOI Creative Commons
Mukesh Kumar, Amir AghaKouchak, John T. Abatzoglou

и другие.

npj natural hazards., Год журнала: 2025, Номер 2(1)

Опубликована: Фев. 21, 2025

Abstract Previous research has examined individual factors contributing to wildfire risk, but the compounding effects of these remain underexplored. Here, we introduce “Integrated Human-centric Wildfire Risk Index (IHWRI)” quantify fire-weather intensification and anthropogenic factors—including ignitions human settlement into wildland—on risk. While climatic trends increased frequency high-risk by 2.5-fold, combination this trend with wildland-urban interface expansion led a 4.1-fold increase in conditions conducive extreme-impact wildfires from 1990 2022 across California. More than three-quarters wildfires—defined as top 20 largest, most destructive, or deadliest events on record—originated within 1 km interface. The destructive wildfires—90% which were human-caused—primarily occurred fall, while largest wildfires—56% human-caused—mostly took place summer. By integrating activity climate change impacts, provide holistic understanding human-centric crucial for policy development.

Язык: Английский

Процитировано

0
Disproportionately large impacts of wildland-urban interface fire emissions on global air quality and human health DOI Creative Commons
Wenfu Tang, L. K. Emmons, Christine Wiedinmyer

и другие.

Science Advances, Год журнала: 2025, Номер 11(11)

Опубликована: Март 14, 2025

Fires in the wildland-urban interface (WUI) are a global issue with growing importance. However, impact of WUI fires on air quality and health is less understood compared to that wildland. We analyze fire impacts at scale using multi-scale atmospheric chemistry model—the Multi-Scale Infrastructure for Chemistry Aerosols model (MUSICA). have notable key pollutants [e.g., carbon monoxide (CO), nitrogen dioxide (NO 2 ), fine particulate matter (PM 2.5 ozone (O 3 )]. The emission disproportionately large wildland primarily because closer human settlement. Globally, fraction fire–caused annual premature deaths (APDs) all APDs about three times emissions emissions. developed framework can be applied address critical needs understanding mitigating their impacts.

Язык: Английский

Процитировано

0
An expert system to quantify wildfire hazards in gardens and create effective defensible space DOI Creative Commons
Stefania Ondei, Grant J. Williamson, Scott M. Foyster

и другие.

International Journal of Disaster Risk Reduction, Год журнала: 2025, Номер unknown, С. 105424 - 105424

Опубликована: Март 1, 2025

Язык: Английский

Процитировано

0
Urbanization Pressures on Climate Adaptation Capacity of Forest Habitats DOI
Anqi Huang, Xiyan Xu, Gensuo Jia

и другие.

Global Change Biology, Год журнала: 2025, Номер 31(4)

Опубликована: Апрель 1, 2025

Urbanization extensively shapes the wildland-urban interfaces (WUIs). However, effects of urbanization on forest habitats in WUIs as thermal refuges for biodiversity remain elusive. Here, we show that urbanization-induced increases human footprints cause canopy degradation WUIs, including declines coverage (-12.61% ± 0.05%), leaf area index (-0.45 0.01 m2 m-2), and height (-3.74 0.02 m). Canopy weakens forest-based climate change adaptation, inferred by reduced habitat connectivity (-9.45% 0.08%) elevated daily mean surface temperature (0.41°C 0.01°C) leading to a rise frequency (0.22 days) intensity (1.05°C 0.02°C) annual extremes compared nearby wildlands. A 10.01% 0.07% lower species richness than wildlands demonstrates local loss driven intense footprints, declined connectivity, increased stress. We highlight need urban planning fully integrate solutions adaptation conservation.

Язык: Английский

Процитировано

0
Garden design can reduce wildfire risk and drive more sustainable co-existence with wildfire DOI Creative Commons
Stefania Ondei, Owen Price, David M. J. S. Bowman

и другие.

npj natural hazards., Год журнала: 2024, Номер 1(1)

Опубликована: Авг. 1, 2024

Abstract Destructive wildfire disasters are escalating globally, challenging existing fire management paradigms. The establishment of defensible space around homes in wildland and rural urban interfaces can help to reduce the risk house loss provide a safe area for residents firefighters defend property from wildfire. Although is well-established concept management, it has received surprisingly limited scientific discussion. Here we reviewed guidelines on creation Africa, Europe, North America, South Oceania. We developed conceptual model framed key recommended approaches mitigate attack mechanisms, which address fuel types, amount, spatial distribution. found that zonation within commonly recommended; reduction (or removal) all fuels, particularly dead plant material, usually suggested close ( < 1.5 m; Fuel-free zone) proximity house. Conversely, an intermediate (1.5–10 Open zone), focus predominantly minimizing horizontal vertical connectivity. Finally, outer part garden (10–30 Tree trees canopy shielding ember radiant energy, but on-ground still recommended. Evidence literature broadly supported these design elements, although many studies were highly localised. Further empirical modelling research required identify optimal surrounding houses, better understand how structure, species composition moisture status affects ignition embers, heat, flames.

Язык: Английский

Процитировано

2
Unveiling interprovincial geographic patterns of 5A-level tourism cultural ecosystem service flows and tourist preferences in China's metacoupled systems DOI
Tao Liu, Le Yu, Jianguo Liu

и другие.

Applied Geography, Год журнала: 2024, Номер 172, С. 103432 - 103432

Опубликована: Окт. 15, 2024

Язык: Английский

Процитировано

2
Effects of Dust Storm and Wildfire Events on Phytoplankton Growth and Carbon Sequestration in the Tasman Sea, Southeast Australia DOI Creative Commons
Hiep Nguyen Duc, John Leys, Matthew Riley

и другие.

Atmosphere, Год журнала: 2024, Номер 15(3), С. 337 - 337

Опубликована: Март 8, 2024

Dust storms and wildfires occur frequently in south-eastern Australia. Their effects on the ecology, environment population exposure have been focus of many studies recently. do not emit ground-sequestered carbon, but significant quantities carbon into atmosphere. However, both natural events promote phytoplankton growth water bodies because other trace elements such as iron, deposit surface oceans. Carbon dioxide is reabsorbed by via photosynthesis. The balance cycle due to dust well known. Recent emission 2019–2020 summer eastern Australia indicated that this megafire event emitted approximately 715 million tonnes CO2 (195 Tg C) atmosphere from burned forest areas. This study focusses association southeastern with Tasman Sea February 2019 storm Black Summer wildfires. Central western New South Wales were sources (11 16 2019), occurred along coast Victoria (from early November January 2020). WRF-Chem model used for simulation AFWA (Air Force Weather Agency US) version GOCART model, wildfire FINN (Fire Emission Inventory NCAR) data. results show similarities differences deposition particulate matter, reabsorption patterns these events. A higher rate PM2.5 ocean corresponds a growth. Using during 5-day 2019, ~1230 tons total was predicted deposited Sea, while ~132,000 PM10 stage 1 8 2019.

Язык: Английский

Процитировано

1
Forest firefighting technology: Strategic water reservoir placement for terrestrial and aerial vehicles DOI
Antônio Henrique Cordeiro Ramalho, Nilton César Fiedler, Alexandre Rosa dos Santos

и другие.

International Journal of Disaster Risk Reduction, Год журнала: 2024, Номер 108, С. 104496 - 104496

Опубликована: Апрель 25, 2024

Язык: Английский

Процитировано

1
Compound risk of wildfire and inaccessible shelters is disproportionately impacting disadvantaged communities DOI Creative Commons
Alireza Ermagun,

Fatemeh Janatabadi

Progress in Disaster Science, Год журнала: 2024, Номер 23, С. 100358 - 100358

Опубликована: Июль 27, 2024

This study proposes measuring access to shelters and wildfire risks in tandem rather than isolation prevent wildfires from turning into human disasters. By leveraging a human-centered design approach California, which has an active history experience with some of the deadliest wildfires, three key findings are discerned. First, California experiences undesirable resource allocation where regions high risk surrounded by low level emergency shelters, shelters. Second, neither nor is evenly distributed across space. uneven distribution, however, discriminates against exurban areas. As one moves away core cities, higher comparatively limited noticed, underscoring heightened susceptibility areas wildfires. Third, contrast existing research solely focusing on risk, it revealed that elderly, people disabilities, Hispanics at experiencing The suggest instilling equity preparedness strategies while minimizing gap resources between disadvantaged advantaged communities, given trichotomy exposure hazard (risk wildfire), proximity aid (access shelters), vulnerability threat (community characteristics).

Язык: Английский

Процитировано

1