Global and Planetary Change, Год журнала: 2024, Номер unknown, С. 104622 - 104622
Опубликована: Ноя. 1, 2024
Язык: Английский
Water Resources Research, Год журнала: 2025, Номер 61(1)
Опубликована: Янв. 1, 2025
Abstract As the largest city in northern China and capital of China, rapid increases Beijing’s water consumption recent years have made resources provision an increasing problem. To rationally allocate resources, it is important to obtain long‐term runoff information Beijing. In this study we develop a 236‐year chronology tree‐ring widths based on cores from Pinus tabuliformis four sampling sites. The resulting regression model reconstructs December–July Yongding River Beijing, with 49.5% variance explained, back 1786 CE. Among last 236 years, 1868, 1956, 1991, 1998, 2018, 2021 were extremely high years; 1900, 1906, 1999, 2000 low years. Comparison reconstruction results climate grid data demonstrated large magnitude change North during period. Linkage analysis between reconstructed large‐scale vapor indicated that occurred negative phases Pacific Decadal Oscillation, which may be influenced by East Asian Summer Monsoon. Projections indicate flow will increase future. Supported policies such as Ecological Water Supply South‐to‐North Diversion, regional vegetation productivity increased substantially since 2000. Vegetation growth interacts volume. It unclear how long these continue.
Язык: Английский
Процитировано
4
Earth s Future, Год журнала: 2025, Номер 13(1)
Опубликована: Янв. 1, 2025
Abstract Central Asia (CA), a typical arid and semiarid region, has experienced worsening droughts, adversely impacting agricultural production socioeconomic development. However, the evolution of hydrological droughts in CA remains unclear. Here, we used instrumental streamflow reanalysis to demonstrate decline surface runoff since 1990s, with 44.6% 33.2% area dominated by reductions snowmelt precipitation, respectively. We found that global warming contributes long‐term decrease runoff, while short‐term fluctuations are caused El Niño‐Southern Oscillation, such as southern drying induced decreasing precipitation during La Niña. project future drought characteristics based on state‐of‐the‐art simulations increasing duration severity CA, especially Amu Darya basin, Caspian Sea East Coast basin. These exacerbated higher anthropogenic emissions, posing high‐level risks 39.01% land 35.9% human population under an extremely high emissions scenario. findings highlight need for improved water conservation technologies concerted development strategies should be considered national policy makers this water‐scarce climatically sensitive region.
Язык: Английский
Процитировано
4
Climate of the past, Год журнала: 2024, Номер 20(10), С. 2287 - 2307
Опубликована: Окт. 11, 2024
Abstract. Investigations of past extreme climate events offer insights into the interactions between natural forces, ecosystems, and human societies. The Chongzhen drought, which occurred from 1627 to 1644 CE, stands as possibly most severe drought in central eastern China over last 1500 years, remarkable for its duration extent vast number people affected. Concurrently, a widespread famine emerged, triggering peasant uprisings that are argued having contributed Ming Dynasty's downfall. This study extracted 1802 records 1977 Chinese historical documents reconstruct spatio-temporal progression impact on famine. provided information season, duration, intensity, enabled classification four severity levels. Then kernel density estimation reconstructed spatial pattern index (DKDI) series sub-regions. Between 1644, affected China. zone was mainly located north 29° N, shifting northwestern region northern then expanding south. development different regions not synchronized. faced earliest outbreak, eased middle period peaked 1640. region's DKDI forms single-peaked curve, indicating gradual aggravation 1633 Yangtze–Huai shows multi-peaked with repeated cycles worsening easing peaking 1641. Furthermore, reconstruction revealed overlapped ranges similar trends drought. years marking peak (FKDI) region, coincided those DKDI. Regression analysis identified primary factor famine, accounting approximately 67.3 % occurrence. In contribution higher (73.4 %). Series correlation analyses indicate continuity drought's impacts paper further clarifies dominant pathway transmission this case: → declining agricultural harvest food shortage Other socio-economic factors, such locust infestations, nomadic invasions, economic decline, also played role occurrence Human response measures were instrumental regulating change impacts.
Язык: Английский
Процитировано
4
CATENA, Год журнала: 2025, Номер 250, С. 108774 - 108774
Опубликована: Янв. 31, 2025
Язык: Английский
Процитировано
0
Global and Planetary Change, Год журнала: 2025, Номер unknown, С. 104824 - 104824
Опубликована: Апрель 1, 2025
Язык: Английский
Процитировано
0
Journal of Forestry Research, Год журнала: 2025, Номер 36(1)
Опубликована: Апрель 3, 2025
Язык: Английский
Процитировано
0
Palaeogeography Palaeoclimatology Palaeoecology, Год журнала: 2025, Номер unknown, С. 112955 - 112955
Опубликована: Апрель 1, 2025
Язык: Английский
Процитировано
0
Palaeogeography Palaeoclimatology Palaeoecology, Год журнала: 2024, Номер unknown, С. 112529 - 112529
Опубликована: Окт. 1, 2024
Язык: Английский
Процитировано
0
Theoretical and Applied Climatology, Год журнала: 2024, Номер 155(11), С. 9657 - 9671
Опубликована: Окт. 8, 2024
Язык: Английский
Процитировано
0
Global and Planetary Change, Год журнала: 2024, Номер unknown, С. 104622 - 104622
Опубликована: Ноя. 1, 2024
Язык: Английский
Процитировано
0