Cryosphere–groundwater connectivity is a missing link in the mountain water cycle

Nature Water, Год журнала: 2024, Номер 2(7), С. 624 - 637

Опубликована: Июль 19, 2024

Язык: Английский

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Locating Hydrologically Unsustainable Areas for Supporting Ecological Restoration in China's Drylands

Earth s Future, Год журнала: 2024, Номер 12(3)

Опубликована: Март 1, 2024

Abstract China has undertaken extensive ecological restoration (ER) projects since the late 1970s in drylands, dominating greening of drylands. The greening, especially ER‐induced, can affect regional water availability and even cause hydrological unsustainability (i.e., lead to a negative shift ecosystem supply demand balances). However, there is still limited research on accurately identifying hydrologically unsustainable areas (GA) China's Here, we developed an supply‐demand indicator, namely, self‐sufficiency (WSS), defined as ratio precipitation. Using remote sensing multisource synthesis data sets combined with trend analysis time series detection, conducted spatially explicit assessment sustainability risk drylands context ER over period 1987–2015. results showed that 17.15% (6.36 × 10 4 km 2 ) GA faced WSS (indicating unsustainability), mainly Inner Mongolia, Shanxi, Xinjiang provinces, driven by evapotranspiration. Moreover, 29.34% (1.09 5 GA, whose area roughly double exhibited potential shortage significant decline (−0.014 yr −1 ), concentrated Shaanxi, Gansu provinces. reliability our findings was demonstrated through previous studies at local scale soil moisture changes. Our offer precise grid‐scale identification providing more specific spatial guidance for implementation adaptation

Язык: Английский

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China’s Black Soil Granary is increasingly facing extreme hydrological drought threats

Science Bulletin, Год журнала: 2023, Номер 68(5), С. 481 - 484

Опубликована: Фев. 9, 2023

Язык: Английский

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Dynamic change and driving response of shallow groundwater level based on random forest in southwest Songnen Plain

Journal of Hydrology Regional Studies, Год журнала: 2024, Номер 53, С. 101800 - 101800

Опубликована: Апрель 29, 2024

The southwest Songnen Plain in China. Study focus: This study investigated the multi-time groundwater dynamic types and trends of level. Random forest model was applied to analyse on driving factors New hydrological insights: selected following data from four periods 2005, 2010, 2015, 2020: depth, precipitation, evaporation, extraction, dry field area, paddy area. Pearson correlation analysis, Kriging interpolation, Mann-Kendall test, other methods were employed determine changes level within periods. analysis shows that table change greatly periods, between depth precipitation decreases first then increases. interpolation showed lower west, around irrigation areas higher. test changed abruptly over time during period rainy season; average increased by 1.36 m 2005 but only 0.09 2010 2020. random dynamics its established, it found size had greatest influence dynamics, affecting 32.15%.

Язык: Английский

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An appraisal of the local‐scale spatio‐temporal variations of drought based on the integrated GRACE/GRACE‐FO observations and fine‐resolution FLDAS model

Hydrological Processes, Год журнала: 2023, Номер 37(11)

Опубликована: Ноя. 1, 2023

Abstract The gravity recovery and climate experiment (GRACE) observations have so far been utilized to detect trace the variations of hydrological extremes worldwide. However, applying coarse resolution GRACE estimates for local‐scale analysis remains a big challenge. In this study, new version fine (1 km) Famine early warning systems network Land Data Assimilation System (FLDAS) model data was integrated into machine learning along with evaluate subbasin‐scale water storage, drought. With correlation root mean square error (RMSE) its results, downscaling turned out be very successful in modelling finer TWSA. storage deficit (WSD) Water Storage Deficit Index (WSDI) were used determine episodes severity drought events. Accordingly, two severe droughts (January 2008 March 2009 September 2019 December 2020) discerned Kizilirmak Basin (KB) located Central Türkiye. characterization evaluated based on WSDI, scPDSI, model‐based indices soil moisture percentile (SMSP) groundwater (GWSP). results indicated discrepancies classes different indices. WSDI more correlated GWSP, suggesting high ability monitor as well.

Язык: Английский

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Spatiotemporal Variations and Sustainability Characteristics of Groundwater Storage in North China from 2002 to 2022 Revealed by GRACE/GRACE Follow-On and Multiple Hydrologic Data

Remote Sensing, Год журнала: 2024, Номер 16(7), С. 1176 - 1176

Опубликована: Март 27, 2024

North China (NC) is experiencing significant groundwater depletion. We used GRACE and GRACE-FO RL06 Level-2 data with Mascon from April 2002 to July 2022. fused these two types of through the generalized three-cornered hat method further combined them hydrological models, precipitation, in situ groundwater-level, extraction (GWE) determine verify temporal spatial variations storage (GWS) NC. quantitatively assessed sustainability by constructing a index explored dynamic cyclic process change quantified impact South-to-North Water Transfer Project (SNWTP) on GWS The overall shows decreasing trend. GRACE/GRACE-FO-derived results are consistent those shown groundwater-level monitoring well. Groundwater NC various states unsustainability throughout period SNWTP affected water use structure some extent This study elucidates latest spatial–temporal GWS, especially assessment quantitative description effects changes may provide reference for resource management.

Язык: Английский

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GRACE-based groundwater drought in the Indochina Peninsula during 1979–2020: Changing properties and possible teleconnection mechanisms

The Science of The Total Environment, Год журнала: 2023, Номер 908, С. 168423 - 168423

Опубликована: Ноя. 10, 2023

Язык: Английский

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Impacts of groundwater storage variability on soil salinization in a semi-arid agricultural plain

Geoderma, Год журнала: 2025, Номер 454, С. 117162 - 117162

Опубликована: Янв. 6, 2025

Язык: Английский

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Evaluation and Tradeoff‐Synergy Analysis of Ecosystem Services in an Ecologically Vulnerable Region in the Northern China

Land Degradation and Development, Год журнала: 2025, Номер unknown

Опубликована: Март 10, 2025

ABSTRACT The Northern Hebei Province (NHB) in China serves as a crucial geographical barrier for ensuring the ecological security of mega city‐group Beijing –Tianjin‐Hebei. Due to rapid urbanization and anthropogenic afforestation, NHB is confronted with significant challenge coordinating preservation ecosystem services (ESs) socio‐economic development. Consequently, understanding impacts these human disturbances on ESs essential future decision‐making management optimal provisions ESs. Integrated Valuation Ecosystem Services Trade‐offs Tools (InVEST) model was used evaluating long‐term trends five key NHB, namely carbon storage (CS), habitat quality (HQ), water yield (WY), net primary productivity (NPP) food production (FP). Further, trade‐offs/synergy were analyzed, bundles identified. main conclusions are follows: (1) From 1996 2020, impervious surface (+122.84%), barren (+169.74%), forest (+19.8%) shrub (+49.03%) increased; waters (−39%), cropland (−20.22%) grassland (−6.14%) decreased. (2) HQ, CS, WY decreased by −5.68%, −10.69% − 20.55%, respectively, while other increased (NPP 115.09%, FP 137.14%). Increases area improved multiple but reduced WY. significantly enhanced land use efficiency. (3) Five pairs showed synergies, another trade‐offs. trade‐offs between three (CS‐WY, FP‐WY, FP‐NPP) strengthened, synergies enhanced. (4) ecologically fragile bundle 19.44% at county level 83.89% pixel level. As evidenced ES two levels, there distinct goals different levels. planning should be based spatial which can provide necessary information support sustainable development regional ecosystems.

Язык: Английский

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How Urban Expansion and Climatic Regimes Affect Groundwater Storage in China’s Major River Basins: A Comparative Analysis of the Humid Yangtze and Semi-Arid Yellow River Basins

Remote Sensing, Год журнала: 2025, Номер 17(7), С. 1292 - 1292

Опубликована: Апрель 4, 2025

This study investigated and compared the spatiotemporal evolution driving factors of groundwater storage anomalies (GWSAs) under dual pressures climate change urban expansion in two contrasting river basins China. Integrating GRACE GLDAS data with multi-source remote sensing using attribution analysis, we reveal divergent GWSA dynamics between humid Yangtze River Basin (YZB) semi-arid Yellow (YRB). The GWSAs YZB grids showed a marked increasing trend at 3.47 mm/yr (p < 0.05) during 2002–2020, aligning upward patterns observed agricultural land types including dryland paddy fields, rather than exhibiting anticipated decline. Conversely, YRB experienced pronounced decline (−5.59 mm/yr, p 0.05), exceeding those adjacent regions (−5.00 mm/yr). climatic regimes form fundamental drivers. YZB’s (1074 mean precipitation) balanced seasonality amplified recharge through enhanced surface runoff (+6.1%) driven by precipitation increases (+7.4 In contrast, YRB’s water deficit intensified, despite marginal gains (+3.5 mm/yr), as evapotranspiration (+4.1 mm/yr) exacerbated moisture scarcity. Human interventions further differentiated trajectories: clusters demonstrated growth across all city types, highlighting synergistic effects climates optimized drainage infrastructure reduced from impervious surfaces. over-exploitation due to rapid urbanization coupled irrigation intensification drove cross-sector depletion. Quantitative revealed dominated (86% contribution), while anthropogenic accounted for 72% These findings provide critical insights developing basin-specific management strategies, emphasizing climate-adaptive planning water-rich versus demand-side controls water-stressed basins.

Язык: Английский

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