Evaluating vegetation vulnerability under compound dry and hot conditions using vine copula across global lands

Journal of Hydrology, Год журнала: 2024, Номер 631, С. 130775 - 130775

Опубликована: Фев. 1, 2024

Язык: Английский

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The influence of the 2022 extreme drought on groundwater hydrodynamics in the floodplain wetland of Poyang Lake using a modeling assessment

Journal of Hydrology, Год журнала: 2023, Номер 626, С. 130194 - 130194

Опубликована: Сен. 20, 2023

Язык: Английский

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Mapping and Analyzing the Spatiotemporal Patterns and Drivers of Multiple Ecosystem Services: A Case Study in the Yangtze and Yellow River Basins

Remote Sensing, Год журнала: 2024, Номер 16(2), С. 411 - 411

Опубликована: Янв. 20, 2024

The Yangtze River Basin (YZRB) and the Yellow (YRB), which are crucial for ecology economy in China, face growing challenges to ecosystem service (ES) functions due global population growth, urbanization, climate change. This study assessed spatiotemporal dynamics of ESs YZRB YRB between 2001 2021, comprehensively encompassing essential aspects such as water yield (WY), carbon sequestration (CS), soil conservation (SC), habitat quality (HQ) while also analyzing trade-offs synergies among these at grid cells. GeoDetector was employed ascertain individual or interactive effects natural anthropogenic factors on their trade-offs/synergies. results showed that (1) from four exhibited significant spatial disparities distribution within two basins, with overall trend mainly increasing. consistently substantially higher ES values than YRB. (2) Complex were apparent both characterized by distinct heterogeneity. relationships WY–CS, WY–SC, CS–SC, CS–HQ synergistic. (3) Precipitation, potential evapotranspiration, elevation, land use cover (LULC), slope influenced basins. Notably, factors, particularly interactions involving LULC other demonstrated more robust explanatory power trade-offs/synergies drivers. These findings significantly affect refined management sustainable development decision-making large rivers regions.

Язык: Английский

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Spatial and temporal divergence and driving mechanisms of carbon sinks in terrestrial ecosystems in the middle reaches of the Yangtze River urban agglomerations during 2008–2020

Ecological Indicators, Год журнала: 2024, Номер 165, С. 112205 - 112205

Опубликована: Июнь 4, 2024

Urban cluster carbon sinks are key parts of the terrestrial cycle, and play an important role in global climate change. Based on inversion results net ecosystem productivity (NEP) Middle Reaches Yangtze River Agglomeration (MRYRUA), this study considered influence both natural environmental socioeconomic factors NEP, investigated driving mechanism sink emphasizing spatial temporal heterogeneity by geographically temporally weighted regression model (GTWR). Results demonstrated that (1) During 2008–2020, annual average NEP was positive MRYRUA, effect increased. (2) In Precipitation DEM were positively correlated with sinks, opposite for temperature, percentage water areas population density. (3) period, factors, such as temperature precipitation grew gradually weaker, whereas The urbanization rate, night lights index industrial structure changed from negative to positive, while built-up area had increasing NEP. conclusions above, proposed differentiated policy implications, including improving vegetation hydrothermal environment, controlling urban expansion accelerating transformation. It would provide empirical inspiration attaining peak carbon, neutrality, sustainable development goals.

Язык: Английский

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Soil salinization poses greater effects than soil moisture on field crop growth and yield in arid farming areas with intense irrigation

Journal of Cleaner Production, Год журнала: 2024, Номер 451, С. 142007 - 142007

Опубликована: Март 28, 2024

Язык: Английский

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Extreme Meteorological Drought Events over China (1951–2022): Migration Patterns, Diversity of Temperature Extremes, and Decadal Variations

Advances in Atmospheric Sciences, Год журнала: 2024, Номер unknown

Опубликована: Сен. 5, 2024

Язык: Английский

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Examining future spatiotemporal changes in blue and green water using an enhanced SWAT model: A Jialing River basin case study

Ecological Indicators, Год журнала: 2024, Номер 170, С. 112941 - 112941

Опубликована: Дек. 12, 2024

Язык: Английский

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Groundwater Storage Response to Extreme Hydrological Events in Poyang Lake, China’s Largest Fresh-Water Lake

Remote Sensing, Год журнала: 2025, Номер 17(6), С. 988 - 988

Опубликована: Март 12, 2025

Groundwater systems are important for maintaining ecological balance and ensuring water supplies. However, under the combined pressures of shifting climate patterns human activities, their responses to extreme events have become increasingly complex. As China’s largest freshwater lake, Poyang Lake supports critical resources, health, adaptation efforts. Yet, relationship between groundwater storage (GWS) hydrological in this region remains insufficiently studied, hindering effective management. This study investigates GWS response by downscaling Gravity Recovery Climate Experiment (GRACE) data validating it with five years observed daily levels. Using GRACE, Global Land Data Assimilation System (GLDAS), ERA5 data, a convolutional neural network (CNN)–attention mechanism (A)–long short-term memory (LSTM) model was selected downscale high resolution (0.1° × 0.1°) estimate recovery times return baseline. Our analysis revealed seasonal fluctuations that phase precipitation, evapotranspiration, runoff. durations flood (2020) drought (2022) ranged from 0.8 3.1 months 0.2 4.8 months, respectively. A strong correlation meteorological droughts, while agricultural significantly weaker. These results indicate precipitation runoff more sensitive than evapotranspiration influencing changes. findings highlight significant sensitivity GWS, despite improved management

Язык: Английский

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Differential impacts of compound dry- and humid-hot events on global vegetation productivity

Frontiers in Environmental Science, Год журнала: 2025, Номер 13

Опубликована: Июнь 3, 2025

Introduction The increasing frequency of compound heat events (CHEs), including dry-hot (CDHEs) and humid-hot (CHHEs), poses significant threats to terrestrial ecosystems. While previous studies have examined the independent combined effects drought on vegetation productivity, specific roles CHHEs differential impacts CDHEs remain poorly understood. Methods Using Gross Primary Productivity (GPP) estimated from satellite-based near-infrared reflectance (NIRv), monthly meteorological data Standardized Precipitation Evapotranspiration Index (SPEI), this study calculated Compound Event Indicator (SCEI) quantify severity CHEs, investigated immediate lagged global GPP 2001 2018. Results Our results demonstrated that occurred more frequently with greater than during period. reduced in 68% vegetated areas, whereas enhanced 58% areas. Globally, caused net changes −5.26 Pg C yr −1 1.67 , respectively. In contrast, polar zone, boreal shrubs, grasslands increased decreased CHHEs, average 0.17 −0.04 Additionally, lag were most prominent periods 0 3 months 10 12 post-event. Discussion These findings highlight contrasting dry- ecosystem carbon fluxes provide a better understanding cycles under climate extremes.

Язык: Английский

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Determining the critical threshold of meteorological heat damage to tea plants based on MODIS LST products for tea planting areas in China

Ecological Informatics, Год журнала: 2023, Номер 77, С. 102235 - 102235

Опубликована: Июль 26, 2023

Язык: Английский

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