秦岭及周边地区树木径向生长与气候因子的关系研究进展

Advances in Studies of Relationships between Tree Radial Growth and Climatic Factors in Qinling Mountains and the Surrounding Areas

使用树轮年代学的方法探讨不同地区不同气候条件下树木径向生长的气候要素响应特征,有助于深入理解局地树木生长状况的制约因素,进而有助于全球变化的应对与适应。简要回顾秦岭及周边地区的树轮年代学的研究工作,发现该地区树木生长与气候响应关系存在明显的地域分异现象:在秦岭以北,水分是树木生长的主要限制因子;秦岭分水岭和南坡,温度则是主要控制因子;秦岭以南区,海拔差异影响树木生长和气候因子的响应关系。针对当前的研究现状提出相关建议,以期对该区域后续研究有所帮助。

The relationships between tree radial growth and climatic factors are very important to un- derstand the situations of trees in local areas, as well as to take actions to deal with global change. Dendrochronological studies carried out in Qinling Mountains and the surrounding areas were reviewed, and geographical differentiations of responses between tree radial growth and climatic factors were re- vealed from the region. Water condition is main limiting factor of the growth of trees in northern Qin- ling Mountains ; temperature is the key controlling factor in watershed and the southern slope of Qinling Mountains; and, altitude differences affect response patterns of tree growth to climatic factors in south- ern Qinling Mountains. Several advices were given to tree-ring studies over this large scale region.