Global Ecology and Conservation, Journal Year: 2024, Volume and Issue: 56, P. e03341 - e03341
Published: Dec. 1, 2024
Language: Английский
Hydrology and earth system sciences, Journal Year: 2025, Volume and Issue: 29(3), P. 613 - 625
Published: Feb. 4, 2025
Abstract. Recovery time, referring to the duration that an ecosystem needs return its pre-drought condition, is a fundamental indicator of ecological resilience. Recently, flash droughts – characterised by rapid onset and development have gained increasing attention. Nevertheless, spatiotemporal patterns in gross primary productivity (GPP) recovery time factors influencing it remain largely unknown. In this study, we investigate terrestrial China based on GPP using random forest regression model SHapley Additive exPlanations (SHAP) method. A was developed analyse establish response functions through partial correlation for typical drought periods. The dominant driving were determined SHAP results reveal average across approximately 37.5 d, with central southern regions experiencing longest durations. Post-flash-drought radiation emerges as environmental factor, followed aridity index post-flash-drought temperature, particularly semi-arid sub-humid areas. Temperature exhibits non-monotonic relationship where both excessively cold hot conditions lead longer Herbaceous vegetation recovers more rapidly than woody forests, deciduous broadleaf forests demonstrating shortest time. This study provides valuable insights comprehensive water resource management contributes large-scale monitoring efforts.
Language: Английский
Citations
1
European Journal of Agronomy, Journal Year: 2025, Volume and Issue: 166, P. 127568 - 127568
Published: March 1, 2025
Language: Английский
Citations
0
Journal of Geophysical Research Biogeosciences, Journal Year: 2025, Volume and Issue: 130(3)
Published: March 1, 2025
Abstract High vapor pressure deficit (VPD) and low soil moisture (SM) lead to atmospheric droughts, which can stress carbon‐water coupling in terrestrial ecosystems. However, the strong collinearity between VPD SM, particularly under certain climatic conditions, makes it challenging disentangle their independent contributions carbon water dynamics land‐atmosphere interactions. This study aimed clarify long‐term response of global vegetation coupling, based on ecosystem water‐use efficiency (WUE E ) plant canopy Et ), decoupled SM from 1982 2100. WUE is defined as ratio gross primary productivity evapotranspiration, while transpiration. The results indicate that 2018, both before after decoupling over 64% zones experienced stronger than drought consistently impacting . influence gradually declined, presented a tendency increase. small difference responses attributed effects varied across cover gradients, biomes, zones. As intensifies coming decades, are those all four socio‐economic shared pathway (SSP) scenarios. In high SSP scenarios (SSP5‐8.5 for SSP3‐7.0 dominant expected expand.
Language: Английский
Citations
0
Geophysical Research Letters, Journal Year: 2025, Volume and Issue: 52(6)
Published: March 16, 2025
Abstract Global climate change has intensified flash droughts, which differ from traditional and have significant ecological impacts. However, differences in ecosystem responses to normal droughts China remain unclear, particularly terms of vegetation vulnerability resilience. Using a three‐dimensional clustering method, we identified disparities between these drought types 1982 2022 found that developed 40% faster than but caused more severe damage. With the transition sensitivity increased. Shapley's additive interpretation assessed role each environmental factor recovery. The results show characteristics drive resilience vegetation, whereas temperature vapor pressure deficit become significant. These insights provide deeper understanding tolerance under changing climatic conditions.
Language: Английский
Citations
0
Remote Sensing, Journal Year: 2024, Volume and Issue: 16(8), P. 1408 - 1408
Published: April 16, 2024
The phenomenon of flash droughts, marked by their fast onset, limited predictability, and formidable capacity for devastation, has elicited escalating concern. Despite this growing interest, a comprehensive investigation the spatiotemporal dynamics drought events within zones ecological sensitivity, alongside consequential ramifications, remains elusive. Songnen Plain, distinguished as both an important granary commodity crops keystone China, emerges indispensable locus inquiry into droughts repercussions on terrestrial biomes. Through application daily soil moisture raster datasets encompassing years 2002 to 2022, delves progression two distinct categories droughts—those instigated heatwaves those precipitated water deficits—within Plain. Moreover, ecosystem’s response, with particular focus gross primary productivity (GPP), these climatic variables was investigated. Flash phenomena have been observed manifest relative frequency approximately one event every three predominantly lasting periods 28–30 days. incidence heatwave-induced deficit-induced found be comparable, pronounced prevalence during summer autumn. Nevertheless, caused scarcity demonstrated more extensive distribution heightened occurrence, whereas rooted in were less frequent but exhibited propensity localization specific sectors. sensitivity GPP meteorological anomalies pronounced, average response rate surpassing 70%. This spatial revealed elevated values northwestern segment Plain diminished towards southeastern sector. Intriguingly, GPP’s reaction pace onset heatwave-driven rapid comparison that scarcity. Additionally, use efficiency development recovery largely deviated from base efficiency. insights study hold profound implications advancement regional surveillance adaptive management.
Language: Английский
Citations
1
Atmospheric Research, Journal Year: 2024, Volume and Issue: 311, P. 107681 - 107681
Published: Sept. 8, 2024
Language: Английский
Citations
0
Global Ecology and Conservation, Journal Year: 2024, Volume and Issue: 56, P. e03341 - e03341
Published: Dec. 1, 2024
Language: Английский
Citations
0