Опубликована: Янв. 1, 2024
Язык: Английский
Acta Geophysica, Год журнала: 2025, Номер unknown
Опубликована: Янв. 9, 2025
Язык: Английский
Процитировано
0
Hydrology, Год журнала: 2025, Номер 12(3), С. 47 - 47
Опубликована: Март 4, 2025
Wildfires are frequently observed in watersheds with a Mediterranean climate and seriously affect vegetation, soil, hydrology, ecosystems as they cause abrupt changes land cover. Assessing wildfire effects, well the recovery process, is critical for mitigating their impacts. This paper presents geospatial analysis approach that enables investigation of effects on hydrology. The prediction regeneration potential period needed restoration hydrological behavior to pre-fire conditions also presented. To this end, catastrophic occurred August 2021 wider area Varybobi, north Athens, Greece, used an example. First, extent severity fire its effect vegetation conducted using satellite imagery. history fires specific then analyzed remote sensing data regrowth model developed. affected was systematically analyzed. spatially distributed form order delineate areas which immediate interventions required rapid basin. response estimated based developed models. Curve Numbers post-fire runoff estimations were found be quite similar those derived from measured data. alignment shows SCS-CN method effectively reflects watershed, supports use assessing wildfire-affected areas. results proposed can provide important protection
Язык: Английский
Процитировано
0
Journal of Geophysical Research Earth Surface, Год журнала: 2025, Номер 130(3)
Опубликована: Март 1, 2025
Abstract Soil property changes influence material transport from hillslopes to channels after the wildfire and may indirectly trigger debris flow initiation. This study investigates post‐fire soil evolution its role in hillslope erosion following 15 March 2024 Yajiang Fire, integrating field measurements with laboratory simulations quantify temperature‐ duration‐dependent their controls. Results demonstrate that wildfire‐driven organic matter alteration is governed predominantly by peak heating temperature not exposure duration. Post‐fire profiles are stratified into three thermal impact zones: (a) a high‐temperature zone (>600°C), characterized complete combustion; (b) water‐repellent (WR) (100–600°C), subdivided highly WR layer, an aggregate stability (AS)‐enhancement low layer; (c) unaffected (<100°C). The mobilized wind gravity, accumulate as dry ravel deposits, forming primary source of immediate flows. AS‐enhancement exhibiting improved stability, temporarily mitigates raindrop splash interrill underlying soils prior first rainfall event. However, this layer delays but does prevent deeper mobilization during subsequent intense runoff. These findings clarify thresholds controlling zonation, highlight mechanisms linking initiation, provide valuable data on processes.
Язык: Английский
Процитировано
0
Climatic Change, Год журнала: 2025, Номер 178(4)
Опубликована: Март 18, 2025
Язык: Английский
Процитировано
0
Forests, Год журнала: 2025, Номер 16(4), С. 588 - 588
Опубликована: Март 28, 2025
Under the dual pressures of climate change and rapid urbanization, a comprehensive analysis vegetation’s spatiotemporal patterns their driving forces plays pivotal role for addressing global ecological challenges. However, systematic bibliometric analyses in this field remain limited. This study involved 18,270 related publications from 1989 to 2024 retrieved Web Science SCI-Expanded database, elucidating research trends, methodologies, key thematic areas. Utilizing bibliometrix biblioshiny tools, results reveal an annual average growth rate 17.62% number published articles, indicating expansion. Climate emerged as core force, with high-frequency keywords such “vegetation”, “dynamics”, “variability”. China (18,687 papers), United States (14,502 Germany (3394 papers) are leading contributors domain, showing fastest output, albeit relatively lower citation rates. Core journals, including Remote Sensing Environment Global Change Biology, have played roles advancing vegetation dynamics research, remote sensing techniques dominating field. The highlights shift single-variable (e.g., temperature, precipitation) multi-scale multidimensional approaches around 2010. Regional studies, those focusing on Loess Plateau, gaining importance, while advancements machine learning technologies enhanced precision scalability research. provides summary current state development trends forces, offering valuable insights future
Язык: Английский
Процитировано
0
European Journal of Remote Sensing, Год журнала: 2025, Номер 58(1)
Опубликована: Апрель 11, 2025
Язык: Английский
Процитировано
0
Theoretical and Applied Climatology, Год журнала: 2025, Номер 156(5)
Опубликована: Апрель 14, 2025
Язык: Английский
Процитировано
0
Environmental Research Climate, Год журнала: 2025, Номер 4(2), С. 025006 - 025006
Опубликована: Май 20, 2025
Abstract This study projects near-future (2031–2050) changes in heatwave (HW) risk across West Africa (WA) using an ensemble of eight high-resolution global climate models from the High-Resolution Model Intercomparison Project under a high-emission scenario. Using K-means clustering, we divided WA into four unique temperature zones and examined projected extreme temperatures, HW occurrence magnitude. Our results indicate statistically significant increase future events most parts WA, although considerable spread exists over region among individual models. The pronounced increases are evident Sahel/Sahara Guinea Highlands subregions, with mean ∼10 per year. In contrast, lowest is central ranging between 1 5 Similarly, magnitude to models, exhibiting largest increases. Additionally, projections suggest that strongest HWs will become more frequent, particularly northern southwestern WA. These findings highlight spatial heterogeneity emphasizing need for targeted adaptation strategies.
Язык: Английский
Процитировано
0
Water, Год журнала: 2025, Номер 17(10), С. 1557 - 1557
Опубликована: Май 21, 2025
Under the 1960 Indus Water Treaty, Pakistan owned Western rivers (Indus, Jhelum, and Chenab) India Eastern (Ravi, Suleimanki, Beas). Pakistan’s per capita water availability will reduce from 5260 m3 to less than 1000 by 2025, causing stress. The Basin’s was examined at inflow outflow gauges between 1991 2015. Basin indicated exceptionally low high flows before, during, after floods. Lower flow values vary greatly for Indus, Chenab, Jhelum rivers. During Rabi Kharif, Chenab behaved differently. (Q90 Q99) in Rivers are more periodic higher medium Q99). gauge Kotri reported 35% exceedance with zero during pre-flood post-flood seasons 50% flood season, indicating seasonal concerns. Outflow both fell, particularly year 2000, according data collected over a longer period (1976–2015). Low storage regulating upstream capacity caused reach 28 MAF (million acre feet) 1976 2015, which is 70% permitted 8.6 downstream gauge. For 65 percent of year, does not release any Kotri. As result, ecosystem relies on an annual influx least 123 sustain itself, necessitates 113.51 MAF. At high-flow seasons, experiences devastating floods, yet it dries out frightening rate before preservation ecosystems riparian zones depends large environmental eastern This achievable only fully implementing IWT improving management practices western
Язык: Английский
Процитировано
0
The Science of The Total Environment, Год журнала: 2024, Номер 950, С. 175164 - 175164
Опубликована: Авг. 2, 2024
Язык: Английский
Процитировано
3