首页|Climatic implications in earlywood and latewood width indices of Chinese pine in north central China

Climatic implications in earlywood and latewood width indices of Chinese pine in north central China

扫码查看
原文链接
  • 万方数据
  • 维普
Latewood width(LWW)indices of trees are considered a reliable proxy of summer precipitation in the Northern Hemisphere.However,the strong coupling and high correlation between earlywood width(EWW)and LWW indices often prevent registration of climate signals of the LWW index.In this study,328-year-long earlywood width and latewood width chronologies were developed from Chinese pine at two sites in the Hasi Mountains,north central China.The climate responses of these chronologies were analyzed and the LWW index used to derive sum-mer precipitation signals.Correlation analyses showed that LWW was particularly influenced by earlywood growth and recorded stronger climate signals of the previous year as EWW,rather than those of the current year with infrequent summer climate signals.However,after removing the effect of earlywood growth using a simple regression model,the adjusted LWW chronology(LWWadj)showed a strong rela-tionship with July precipitation in dry years.This suggests that the LWWadj chronology has the potential to be used to investigate long-term variability in summer precipitation in drought-limited regions.

DendroclimatologyLatewood widthClimate responseSummer precipitationEarlywood effect

Kaixuan Yang、Junzhou Zhang、Haowen Fan、Yuan Yan

展开 >

College of Geographic Sciences,Qinghai Normal University,Xining 810016,People's Republic of China

Key Laboratory of Tibetan Plateau Land Surface Processes and Ecological Conservation(Ministry of Education),Xining 810016,People's Republic of China

Key Laboratory of Western China's Environmental Systems(Ministry of Education),College of Earth and Environmental Sciences,Lanzhou University,Lanzhou 730030,People's Republic of China

Gansu Liancheng Forest Ecosystem Field Observation and Research Station,Lanzhou U

Gansu Liancheng Forest Ecosystem Field Observation and Research Station,Lanzhou University,Lanzhou 730333,People's Republic of China

School of Geography and Information Engineering,University of Geoscience,Wuhan 430074,People's Republic of China

展开 >

National Natural Science Foundation of ChinaNational Natural Science Foundation of China

U21A200642001043

2024

10.1007/s11676-024-01702-0

林业研究(英文版)
东北林业大学,中国生态学学会

林业研究(英文版)

CSTPCDEI
影响因子：0.365
ISSN：1007-662X
年,卷(期)：2024.35(3)