应用生态学报2025，Vol.36Issue(2)：403-410,8.DOI:10.13287/j.1001-9332.202502.009
不同波段树轮图像对气候要素的响应
Response of tree-ring images in different bands to climatic factors
摘要
Abstract
To deeply explore the climate signals contained in tree rings,we extracted red,green,and blue light intensities from the tree rings of Abies fargesii in the Jinhouling(altitude:2564 m)and Taiziya(altitude:2494 m)areas of Shennongjia,using the CooRecorder software.With an age-dependent spline,we fitted the growth trends,established chronologies,and analyzed the correlation between tree ring chronology and climate factors from 1953 to 2020.The results showed that the red,green,and blue light intensities of earlywood of trees from Jinhouling showed a significant positive correlation with mean maximum temperature,mean temperature,and mean minimum temperature in June.In Taiziya,the red,green,and blue intensities of earlywood was significantly positively corre-lated with the mean maximum temperature in June and significantly negatively correlated with March precipitation.In Jinhouling,latewood red,green,and blue light intensities showed significant positive correlation with mean maximum temperature of June,July and August,as well as with mean temperature and mean minimum temperature in July and August,and significant negative correlations with July precipitation.In Taiziya,latewood red,green and blue light intensities were significantly positively correlated with mean maximum temperature,mean tempera-ture,and mean minimum temperature in August and negatively correlated with August precipitation.The responses of the red,green,and blue bands of tree rings to climate factors often showed a regular trend of variation with wavelength changes,but the trends varied across different bands.关键词
巴山冷杉/树轮/波段/气候响应Key words
Abies fargesii/tree ring/band/climate response引用本文复制引用
苏绮华,郑永宏,胡正生,廖慧慧,陆呈瑜..不同波段树轮图像对气候要素的响应[J].应用生态学报,2025,36(2):403-410,8.基金项目
本文由国家自然科学基金区域创新发展联合基金重点项目(U23A2021)资助. （U23A2021）
