Your current location:HOME >entertainment >Researchers enrich SW China regional climate history with tree ring data 正文
TIME:2024-05-21 11:32:23 Source: Internet compilationEdit:entertainment
(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.
Why US Catholics are planning pilgrimages in communities across the nation2024-05-21 11:30
China to speed up development of new quality productive forces: top legislator2024-05-21 11:28
Tennessee schools would have to out transgender students to parents under bill heading to governor2024-05-21 11:27
Padres sign veteran infielder Donovan Solano to minor league deal2024-05-21 11:23
Jon Wysocki dead at 53: Staind drummer passes away2024-05-21 11:10
Chinese organization to boost recycling of renewable resources2024-05-21 10:58
Retrial underway for ex2024-05-21 10:58
Justin Verlander is likely to make his season debut for the Astros this weekend at Washington2024-05-21 10:26
Rangers are undefeated at .500 to keep World Series champs from a losing record with Bochy2024-05-21 10:01
Paris Hilton backs California bill to bring more transparency to youth treatment facilities2024-05-21 08:47
Pentagon vows to keep weapons moving to Ukraine as Kyiv faces a renewed assault by Russia2024-05-21 11:32
Two bodies are found in hunt for Kansas moms who disappeared two weeks ago2024-05-21 11:15
NASA confirms mystery object that crashed through roof of Florida home came from space station2024-05-21 11:03
China expects over 750 mln inter2024-05-21 10:57
Yu Darvish extends scoreless innings streak to 25 in Padres' 92024-05-21 10:50
Chinese organization to boost recycling of renewable resources2024-05-21 10:35
Idaho can enforce ban on gender2024-05-21 10:02
Busch Gardens Tampa Bay: Endangered Bornean orangutan born in Florida2024-05-21 09:47
Georgia Republicans choose Amy Kremer, organizer of pro2024-05-21 09:41
Tennessee lawmakers pass bill to involuntarily commit some defendants judged incompetent for trial2024-05-21 08:57