树木径向生长形成的年轮与气候变化密切相关,不同气候条件(例如温度、降水)能影响树木生长,年轮的宽度变化能够反映气候变化情况。树木年轮具有定年准确、连续性强、分辨率高和记录性好等优点,应用树木年轮信息进行气候变化的研究是现今气候变化研究的重要手段。我国树轮气候学的研究区域主要集中在新疆、内蒙等西北干旱、半干旱地区以及东北地区的长白山自然保护区,研究的主要方向为历史时期的气候重构和树木年轮信息的气候变化响应。近年来,国内树轮气候学界以邵雪梅、史江峰等学者开始将研究区域拓展到我国东南沿海地区,并取得了一定的进展。本文利用采自湖南丘陵山区双牌县阳明山西北坡3个采样点的马尾松年轮宽度样本,建立了一个长度为36年的区域马尾松年轮宽度年表。阐述了马尾松年轮宽度年表的建立过程,并论述了马尾松年轮宽度年表与气候要素之间的关系,旨在探讨我国南方丘陵湿润山区树木在生长前期(径向连年生长达到最大值)的年轮宽度对气候要素响应研究的可靠性,同时揭示该地区过去环境变化的一般规律及其对树木生长的影响。相关分析发现:阳明山三个采样点的区域马尾松树木年轮宽度变化和当地气候要素存在良好的相关性。树木生长季前的径向生长与当年1–5月份的平均温度显著正相关,相关系数0.596(P<0.01),与上一年的夏季6、7月份的平均温度显著正相关,相关系数0.630(P<0.01);降水对马尾松的径向生长的影响主要表现在“滞后效应”方面,上一年生长季外的11–3月份以及夏季6、7月份的降水对马尾松径向生长存在负相关,相关系数分别为-0.46、-0.582(P<0.05)。 The tree rings formed by radial growth are closely related to climate change. Different climatic conditions (such as temperature and precipitation) can affect the growth of trees. The change of the width of the ring can reflect the climate change. Tree rings have the advantages of accurate dating, strong continuity, high resolution and good recordability. The study on the use of tree ring information to study climate change is an important means of climate change research. The research areas of tree-ring climatology in China are mainly concentrated in the arid and semi-arid regions of northwestern Xinjiang and Inner Mongolia, and the Changbai Mountain Nature Reserve in northeastern China. The main research directions are the climatic reconstruction of historical periods and the climate change response of tree-ring information . In recent years, domestic tree-ring climatologists have started to expand the research area to the southeast coastal areas in China with scholars such as Shao Xuemei and Shi Jiangfeng, and some progress has been made. In this paper, we use a sample of annual width of Pinus massoniana Pinus thunbergii collected from 3 sampling points on the northwestern slope of Yangmingshan, a mountainous area in Hunan Province, to establish a chronological table of annual width of Pinus massoniana pine with a length of 36 years. The paper describes the establishment of chronology of Pinus massoniana annual ring and discusses the relationship between chronological ages and climatic elements of Pinus massoniana Pinus thunbergii in order to investigate the effect of tree growth on the growth of trees in humid southern hills Value) of the annual ring width response to climate factors study the reliability of the region at the same time reveal the general laws of past changes in the environment and its impact on the growth of trees. Correlation analysis showed that there was a good correlation between the annual ring width of Masson pine trees and the local climatic elements in the three sampling sites in Yangmingshan. The radial growth before the tree growth season was significantly and positively correlated with the average temperature in January-May of that year, and the correlation coefficient was 0.596 (P <0.01), which was significantly and positively correlated with the average temperature in June and July in the previous year with a correlation coefficient of 0.630 (P <0.01). The effects of precipitation on the radial growth of Pinus massoniana were mainly manifested in the aspects of “hysteresis effect”, the precipitation in November-March except in the last growing season and the precipitation in June and July in summer were negatively correlated with the radial There was a negative correlation between the growth and the correlation coefficient (-0.46, -0.582, P <0.05).