An examination of the fluctuation and long-term persistence of drought regimes in the Jing River basin using the PDSI–SWAT model DOI Creative Commons
Dengrui Mu, Hongbo Zhang, Chiheng Dang

et al.

Journal of Water and Climate Change, Journal Year: 2024, Volume and Issue: 15(11), P. 5357 - 5381

Published: Nov. 1, 2024

ABSTRACT Droughts are becoming more widespread around the world. Drought warnings have become complex as environmental factors affect drought severity. Furthermore, droughts an increasing impact on social and economic growth. As a result, it is critical to analyze patterns previous events. The study used Jing River basin in China example employed hydro-meteorological data from 1961 2013 feed into Soil Water Assessment Tool model. Through persistence analysis, can be found that current will likely remain, with deepening arid areas water scarcity humid ones. findings indicate monitoring sub-basin for signals of inconsistent necessary improve early warning systems relief efforts, especially slightly lower precipitation. this paper suggests zoning technique may adapt future local conditions, enabling implementation efficient drought-relief measures response shifting conditions patterns. This bring new insights best framework strategies various places.

Language: Английский

Tree‐Ring Insights Into Past and Future Streamflow Variations in Beijing, Northern China DOI Creative Commons

Honghua Cao,

Feng Chen, Mao Hu

et al.

Water Resources Research, Journal Year: 2025, Volume and Issue: 61(1)

Published: Jan. 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.

Language: Английский

Citations

4
Attribution and Risk Projections of Hydrological Drought Over Water‐Scarce Central Asia DOI Creative Commons
Xin Wu,

Wenhui Tang,

Feng Chen

et al.

Earth s Future, Journal Year: 2025, Volume and Issue: 13(1)

Published: Jan. 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.

Language: Английский

Citations

4
Role of Pacific Ocean climate in regulating runoff in the source areas of water transfer projects on the Pacific Rim DOI Creative Commons
Feng Chen, Shijie Wang, Qianjin Dong

et al.

npj Climate and Atmospheric Science, Journal Year: 2024, Volume and Issue: 7(1)

Published: June 29, 2024

Abstract Over the past two decades, more frequent and intense climate events have seriously threatened operation of water transfer projects in Pacific Rim region. However, role climatic change driving runoff variations source areas these is unclear. We used tree-ring data to reconstruct changes Hanjiang River since 1580 CE representing an important area for China’s south-north project. Comparisons with hydroclimatic reconstructions southwestern United States central Chile indicated that region has experienced multiple coinciding droughts related ENSO activity. Climate simulations indicate increased likelihood drought occurrence coming decades. The combination warming-induced stresses dynamic El Niño (warming ENSO) patterns a thread urban agglomerations agricultural regions rely on along Rim.

Language: Английский

Citations

15
Late Ming Dynasty weak monsoon induced a harmonized megadrought across north-to-south China DOI Creative Commons
Weipeng Yue, Feng Chen, Max C. A. Torbenson

et al.

Communications Earth & Environment, Journal Year: 2024, Volume and Issue: 5(1)

Published: Aug. 17, 2024

Historians and paleoclimatologists have long studied the connection between ecoclimatic changes empire growth, transformation, decline, but striking cases remain rare. Here, we introduce a tree-ring chronology from southern China to reconstruct in April-to-November water balance of middle reaches Yangtze River over last 464 years. The reconstruction supports quantitative assessment spatiotemporal structure late Ming megadrought potential effects on subsequent dynastic transitions. Our results indicate that 1625 – 1644 CE occurred both northern parts East Asian monsoon region China. However, variations onset, duration, magnitude this event differ regions. combination factors such as Pacific sea surface temperature anomalies, weakened solar activity, large-scale volcanic eruptions may contributed occurrence megadrought. These are also identified key drivers interannual decadal fluctuations drought River. provides an historical context for development adaptive measures mitigate future impacts region. across north-to-south China, lasting 1625-1644 CE, was influenced by eruptions, according River's using chronology.

Language: Английский

Citations

10
Assessing riverine fish community diversity and stability by eDNA metabarcoding DOI Creative Commons
Songsong Gu, Ye Deng, Pengyuan Wang

et al.

Ecological Indicators, Journal Year: 2023, Volume and Issue: 157, P. 111222 - 111222

Published: Nov. 8, 2023

Monitoring and evaluating river ecosystems are of paramount importance in addressing ecological environmental challenges. While eDNA (environmental deoxyribonucleic acid)-based method has emerged as a valuable tool for understanding these issues, its application assessing phylogenetic diversity, community stability, the identification key species within systems been limited. In this study, we conducted metabarcoding to assess fish composition, assembly variations, their relationship with hydrologic characteristics. We also explored stability roles system comprising mainstem (MS) tributary (TB) distinct features. Our findings uncovered previously unknown endemic exemplified by discovery Triplophysa. identified disparities between MS TB. Furthermore, established significant associations water-level water flow, changes composition. Triplophysa, high played pivotal role network, contributing significantly stability. The loss Triplophysa increased fragility co-occurrence patterns. Comparing network communities TB, found that displayed greater robustness lower vulnerability, competition likely promoting Overall, study highlights potential integrating data monitoring structure, variations communities.

Language: Английский

Citations

12
Tree‐ring‐based reconstruction of the precipitation variability in the middle Taihang Mountains (1608–2021) DOI

Tiyuan Hou,

Xiaoen Zhao, Feng Chen

et al.

International Journal of Climatology, Journal Year: 2024, Volume and Issue: 44(3), P. 871 - 886

Published: Jan. 17, 2024

Abstract Understanding historical droughts in northern China is challenging due to the limited time records of meteorological stations. In this study, we reconstructed precipitation variability middle Taihang Mountains over 414 years by using tree‐ring width Pinus tabulaeformis . Based on our climate response analysis, growth at sampling sites was mainly restricted total from August previous year June current (P8‐C6), which used as dependent variable for reconstruction. Spatial analysis demonstrated that contained obvious spatial representativeness Mountains. We compared sequence with other dryness/wetness sequences around study area, revealing common drought events most China. Furthermore, multi‐taper method (MTM) a significant period 2–4 precipitation. The may be influenced El Niño–Southern Oscillation (ENSO), Pacific Decadal (PDO), and Atlantic Multidecadal Variability (AMV) has exhibited negative correlation recent decades. This changes wet dry conditions offer reference utilization modern water resources, especially linking decrease area downfall Ming Dynasty.

Language: Английский

Citations

4
Examining the 2022 drought event in the past and future discharge changes of the Upper Jialing River from a tree-ring perspective DOI Creative Commons
Youping Chen, Yilin Ran, Feng Chen

et al.

Journal of Hydrology Regional Studies, Journal Year: 2024, Volume and Issue: 53, P. 101824 - 101824

Published: May 22, 2024

Study Region: The Jialing River, distinguished as the largest tributary of Yangtze River by watershed area Focus: In context a major drought in Basin 2022, this study examines extent low discharge its tributary, that year from long-term perspective tree-ring, then explores possible relationships between changes and large-scale ocean-atmosphere circulation, finally identifies future trends risk extreme high or based on CMIP6 multi-model mean data. New Hydrological Insights for Over past 301 years, value 2022 exceeded range normal runoff fluctuations. Simultaneously, average values recent 2019–2022, reached historical lows. These variations are primarily influenced Tropical Pacific Index North Atlantic Oscillation. Climate model projections indicate upper reaches regularly experiencing (similar to 2022) is trending downward, with probability ∼15% per 2100, while upward, ∼28% 2100.

Language: Английский

Citations

4
A century-long streamflow reconstruction reveals significant streamflow increases in the upper Yangtze River basin DOI

Jia-Zhi Hu,

Zengliang Luo, Yingying Gao

et al.

CATENA, Journal Year: 2025, Volume and Issue: 250, P. 108774 - 108774

Published: Jan. 31, 2025

Language: Английский

Citations

0
Reduced growth of Qinghai spruce due to snow cover loss in high Asian elevations since the late 20th century DOI

Jiachang Wei,

Wenhui Tang,

Feng Chen

et al.

Journal of Forestry Research, Journal Year: 2025, Volume and Issue: 36(1)

Published: April 3, 2025

Language: Английский

Citations

0
Climate change and social turmoil in the late Qing Dynasty revealed by tree rings DOI

Jinkuan Li,

Jiaxin Li,

Yameng Liu

et al.

Palaeogeography Palaeoclimatology Palaeoecology, Journal Year: 2025, Volume and Issue: unknown, P. 112955 - 112955

Published: April 1, 2025

Language: Английский

Citations

0