树木径向生长研究方法及进展

Research Methods and Progress of Radial Growth of Trees

在全球气候变暖的背景下,树木年轮宽度与气候变化间的响应关系逐渐进入研究者的视野.大兴安岭地区位于欧亚大陆的气候敏感区和气候脆弱区,是中国纬度最高和增温最快的地区.同时地处寒温带明亮针叶林的南缘,地下存在多年冻土层.所以大兴安岭地区对气候具有独特的区域变化,在树木年轮宽度与气候变化的响应研究中以该地区作为研究区更具有研究意义.主要综述了树轮气候学的研究背景、树木径向生长的研究方法、气候变化对树木径向生长影响的研究进展,重点分析大兴安岭地区树木径向生长的研究情况.为未来树轮气候学的研究发展方向上提供依据,在气候变化对森林植被的影响和预测未来全球变化对陆地生态系统的影响等方面有重要的理论意义.

In the context of global warming,the relationship between tree ring width and climate change has gradually entered the field of view of researchers.Daxing’anling area,located in the climate-sensitive and climate-fragile region of Eurasia,is the region with the highest latitude and the fastest warming in China.At the same time,it is located in the southern edge of the bright coniferous forest of cold temperate zone,and there is permafrost underground.Therefore,Daxing’anling area has unique regional change to climate,and it is more meaningful to take this area as a research case in the response study of tree ring width to the climate change.This paper mainly focuses on the research background of dendroclimatology,the research methods of tree radial growth,and the research progress of the influence of climate change on tree radial growth.It will not only provide a basis for the future research and development direction of dendroclimatology,but also has important theoretical significance in the impact of climate change on forest vegetation and the prediction of the impact of future global change on terrestrial ecosystems.