Your current location:HOME >world >Researchers enrich SW China regional climate history with tree ring data 正文
TIME:2024-05-22 11:27:21 Source: Internet compilationEdit:world
(Xinhua) 14:36, August 16, 2023BEIJING, Aug. 16 (Xinhua) -- Chinese researchers have provided new in
BEIJING, Aug. 16 (Xinhua) -- Chinese researchers have provided new insight into the regional climate history in southwest China's Yunnan Province through scientific analysis of the annual rings of trees in that region.
The study was recently published in the journal Palaeogeography, Palaeoclimatology, Palaeoecology.
The researchers from Xishuangbanna Tropical Botanical Garden (XTBG) under the Chinese Academy of Sciences, collected samples of Tsuga dumosa, one of the oldest local tree species, from the Wuliang Mountain area in central Yunnan.
The researchers then constructed the tree ring-width chronology of Tsuga dumosa, and analyzed its correlation with climatic factors. They found that moisture availability during the spring-to-early summer season was the key factor that limited tree growth of Tsuga dumosa in the Wuliang Mountain region.
Based on the analysis, the study reveals drought fluctuations at both inter-annual and inter-decadal scales in central Yunnan, along with an increased occurrence of extreme dry or wet events in recent decades.
Moreover, 11 extreme drought years were identified in this region over the past two centuries, with most of them confirmed by historical evidence.
"The study helps us to gain a deeper understanding of the trends and patterns of regional climate change on a 100-year scale," said Fan Zexin, a researcher at XTBG.
"Our study also highlights the dendroclimatic potential of conifer tree species growing in subtropical regions and their ability to capture regional hydroclimate signals," said Fan, adding that the study provides crucial information for evaluating long-term climate change in this region.
Yes, Australia is among the countries the NFL is scouting to host future games2024-05-22 11:20
Reading Becomes More Popular Among Chinese in 2021: Survey2024-05-22 11:15
China to Regulate Use of Chinese Characters2024-05-22 10:37
China to Step up Preservation, Publication of Ancient Books2024-05-22 10:36
Iran: Thousands mourn President Raisi and others killed in helicopter crash2024-05-22 10:33
China's College2024-05-22 10:13
Free Extracurricular Classes Nurture Talents of Tibetan Children2024-05-22 09:33
China Focus: Digitalization Helps More People in China Discover Joy of Reading2024-05-22 09:19
Cunningham throws six scoreless, Vanderbilt defeats Florida 62024-05-22 08:57
Marriages Fall in 2021 Leading to Lower Birth Rates in China, Despite Declining Divorce Rate2024-05-22 08:54
A Canadian serial killer who brought victims to a pig farm is hospitalized after a prison assault2024-05-22 11:19
China Strengthens Legal Aid for Abducted Women2024-05-22 10:48
China Rolls out Five2024-05-22 10:32
Highlights of Closing Ceremony of Beijing 2022 Paralympic Winter Games2024-05-22 10:25
The Great British Sewing Bee 2024 cast: Meet the 12 contestants competing in the BBC contest2024-05-22 09:47
Young Chinese a New Force in Rural Revitalization2024-05-22 09:38
People Celebrate Traditional Flower Festival in East China2024-05-22 09:35
Reading Becomes More Popular Among Chinese in 2021: Survey2024-05-22 09:00
France hits go2024-05-22 08:57
Art Class Enables Children with Autism to Socialize2024-05-22 08:41