Periglacial aeolian activities in the Headwater Region of the Yellow River, northeastern Tibetan Plateau

Palaeogeography Palaeoclimatology Palaeoecology, Год журнала: 2025, Номер unknown, С. 112984 - 112984

Опубликована: Апрель 1, 2025

Язык: Английский

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Decadal shifts in Qingzang Plateau lake carbon dynamics (1970–2020): From predominant carbon sources to emerging sinks

Environmental Science and Ecotechnology, Год журнала: 2024, Номер 21, С. 100389 - 100389

Опубликована: Янв. 7, 2024

The evasion of carbon dioxide (CO

Язык: Английский

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A multiscale attribution framework for separating the effects of cascade and individual reservoirs on runoff

The Science of The Total Environment, Год журнала: 2024, Номер 933, С. 172784 - 172784

Опубликована: Апрель 26, 2024

Язык: Английский

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Sensitivity of Runoff to Climatic Factors and the Attribution of Runoff Variation in the Upper Shule River, North-West China

Water, Год журнала: 2024, Номер 16(9), С. 1272 - 1272

Опубликована: Апрель 29, 2024

Climate change and human activities exert significant impact on the mechanism of runoff generation confluence. Comprehending reasons is crucial for sustainable development water resources. Taking Upper Shule River as research area, M-K test moving t were used to diagnose mutation time. Furthermore, slope changing ratio cumulative quantity method (SCRCQ), climate elasticity method, Budyko equation utilized quantitatively evaluate impacts contribution rates activities. The following results obtained: (1) experienced a increase in from 1972 2021, with 1998 marking year abrupt change. (2) sensitivity showed downward trend 2021. main factor affecting decrease was characteristic parameters underlying surface (n), followed by precipitation (P), while influence potential evapotranspiration (ET0) weakest. (3) response changes influencing factors 90.32% 9.68%, respectively. (4) three attribution methods indicated that primary causing alteration River. supplement hydrological mechanisms provide scientific basis future resources management flood control measures.

Язык: Английский

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Controls on runoff efficiency and its spatiotemporal variability in South Asian river basins

Journal of Hydrology, Год журнала: 2025, Номер unknown, С. 132680 - 132680

Опубликована: Янв. 1, 2025

Язык: Английский

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Runoff Simulation in Data-Scarce Alpine Regions: Comparative Analysis Based on LSTM and Physically Based Models

Water, Год журнала: 2024, Номер 16(15), С. 2161 - 2161

Опубликована: Июль 31, 2024

Runoff simulation is essential for effective water resource management and plays a pivotal role in hydrological forecasting. Improving the quality of runoff forecasting continues to be highly relevant research area. The complexity terrain scarcity long-term observation data have significantly limited application Physically Based Models (PBMs) Qinghai–Tibet Plateau (QTP). Recently, Long Short-Term Memory (LSTM) network has been found learning dynamic characteristics watersheds outperforming some traditional PBMs simulation. However, extent which LSTM works data-scarce alpine regions remains unclear. This study aims evaluate applicability basins QTP, as well performance transfer-based (T-LSTM) regions. Lhasa River Basin (LRB) Nyang (NRB) were areas, model was compared that by relying solely on meteorological inputs. results show average values Nash–Sutcliffe efficiency (NSE), Kling–Gupta (KGE), Relative Bias (RBias) B-LSTM 0.80, 0.85, 4.21%, respectively, while corresponding G-LSTM 0.81, 0.84, 3.19%. In comparison PBM- Block-Wise use TOPMEDEL (BTOP), an enhancement 0.23, 0.36, −18.36%, respectively. both basins, outperforms BTOP model. Furthermore, transfer learning-based at multi-watershed scale demonstrates that, when input are somewhat representative, even if amount limited, T-LSTM can obtain more accurate than models specifically calibrated individual watersheds. result indicates effectively improve applied

Язык: Английский

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Quantifying the impacts of climate change and human activities on runoff and suspended sediment load in the Lhasa River Basin, Tibetan Plateau

Earth Surface Processes and Landforms, Год журнала: 2024, Номер 49(11), С. 3471 - 3488

Опубликована: Июль 9, 2024

Abstract Quantifying the attribution of climate change and human activities on runoff suspended sediment load is crucial for formulating future watershed management measures, especially in ecologically fragile alpine region, which more susceptible to activities. In this study, temporal changes runoff‐suspended potential impact factors (i.e., precipitation, evapotranspiration (PET), land use/land cover (LULC) reservoir operation) were investigated Lhasa River Basin (LRB) from 1956 2020. addition, contributions those quantitatively evaluated based physically‐based Soil Water Assessment Tools (SWAT). The results indicated that annual showed an increasing but insignificant trend during 1956–2020, while precipitation PET a significant at rate 0.94 1.07 mm/yr, respectively. LULC mainly presented increase forestland area followed by decrease grassland bare due implementation ecological projects. Runoff changed abruptly approximately 1995 2005 three abrupt identification methods, thus, study period was further divided into substages: baseline (P 0 , 1956–1994), dramatically increased 1 1995–2004) slightly decreased 2 2005–2020). analysis dominant contributor increments P . caused decline both with their contribution significantly 0.40% 4.73% 50.24% 51.79% Reservoir operation second key factor reduction contributing 42.07% 43.72%, These findings provide scientific foundation reasonably allocating water resources statistical support benefit evaluation implementing projects basin.

Язык: Английский

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Sedimentation history linked to global change in the alpine Damqu Wetland of the Yangtze River headwater in interior Tibetan Plateau

Quaternary Geochronology, Год журнала: 2024, Номер 83, С. 101598 - 101598

Опубликована: Авг. 1, 2024

Язык: Английский

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The recent trends of runoff in China attributable to climate change

Climatic Change, Год журнала: 2024, Номер 177(11)

Опубликована: Окт. 17, 2024

Язык: Английский

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Molecular Identification of Babesia and Theileria Infections in Livestock in the Qinghai–Tibetan Plateau Area, China

Animals, Год журнала: 2024, Номер 14(3), С. 476 - 476

Опубликована: Фев. 1, 2024

The northwestern region of China, known as the Qinghai–Tibet Plateau Area (QTPA), is characterized by unique climate conditions that support breeding various highly-adapted livestock species. Tick vectors play a significant role in transmitting Babesia and Theileria species, posing serious risks to animal health well economy husbandry QTPA. A total 366 blood samples were collected from Tibetan sheep (n = 51), goats 67), yaks 43), cattle 49), Bactrian camels 50), horses 65), donkeys 40). These examined using conventional nested PCR techniques detect overall infection rates 0.3% (1/366) for spp. 38.2% (140/366) Notably, neither nor species detected yaks. among animals different prefectures significantly (p < 0.05). Furthermore, bovis, B. bigemina, caballi, ovis not current study. To our knowledge, this first documented detection luwenshuni goats, T. sinesis equi on Qinghai plateau. novel findings shed light distribution

Язык: Английский

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