史江峰,
史逝远,
马晓琦,
赵业思,
张伟杰,
王博闻
南京大学地理与海洋科学学院, 江苏 南京 210023

基金项目: 国家自然科学基金项目（批准号：41671193）、国家重点研究发展计划——全球变化及应对项目（批准号：2016YFA0600503）、江苏省科技厅自然科学基金项目（批准号：BK20161394）和国家留学基金委青年骨干教师出国研修项目（批准号：201806195033）共同资助


详细信息

作者简介: 史江峰, 男, 43岁, 副教授, 树木年轮学与全球变化, E-mail:shijf@nju.edu.cn

中图分类号: P467

收稿日期:2018-06-07
修回日期:2018-08-23
刊出日期:2018-11-30

Progress of tree-ring studies in climate and environment in Southeast China and North China

Shi Jiangfeng,
Shi Shiyuan,
Ma Xiaoqi,
Zhao Yesi,
Zhang Weijie,
Wang Bowen
School of Geography and Ocean Science, Nanjing University, Nanjing 210023, Jiangsu



MSC: P467

--> Received Date: 07 June 2018
Revised Date: 23 August 2018
Publish Date: 30 November 2018


摘要
摘要:我国东南和华北季风区的树木年轮学研究已经经历了30多年的风雨历程，取得了显著的成效，总体上可以分为3个阶段。第一阶段为1990年代及之前，主要工作为树轮宽度和树轮化学。树轮宽度研究引入了交叉定年技术，但对树木生长对气候响应的规律认识不明确；树轮化学方面建立了树轮与树下土壤之间金属元素含量的对数线性关系方程，为采用树轮中金属元素恢复环境污染史打下了良好基础。第二阶段为2000年代，树轮宽度研究在东南地区缓慢发展，在华北地区发现树木生长受到水分胁迫；树轮化学方面开始尝试建立污染历史与污染源之间的关系。这段时间一个显著的进展是树轮碳同位素研究的开展，认识到树轮碳同位素包含大气CO₂浓度与气候要素信息。第三阶段为2010年以来，这段时期树轮宽度研究取得了爆发式增长，大量研究发现中低海拔树木生长对冷季温度显著响应、中高海拔对暖季温度显著响应，还有一些样点的树木生长同时受到冷季和暖季温度的影响，东南地区仅有零星点上的树木生长受到水分条件的制约，而华北地区树木生长主要受到水分的胁迫；同时，引入树轮氧同位素的研究工作，氧同位素主要反映暖季的水分条件，对具体过程也给予了较多关注；树轮化学有了一定的发展，但是仍需要开展大量的测试工作，才能解决测试数据的可重复性、元素的横向迁移等污染史重建研究中的关键问题。
关键词: 中国东南/
华北/
树轮宽度/
树轮稳定同位素/
树轮化学/
温度/
水分

Abstract:Dendrochronology has experienced a development over 30 years in the monsoon region of Southeast and North China, and it has made significant achievements in climate and environmental studies. Generally, the developing period can be classified as 3 stages. The first stage is prior to and the 1990s, when work mainly focused on tree-ring width and dendrochemistry. The critical technique of cross-dating was introduced in the tree-ring studies, however, the relationship between tree growth and climate was unclear. In dendrochemistry, it was found that there is a logarithmic linear relationship between the concentration of metal elements in tree rings and that in the underlying soils, building a strong basis on reconstructing the environmental pollution history using tree rings. The second stage is the 2000s. Tree-ring width studies developed very slowly in Southeast China with only a few case studies, and tree growth suffered from water stress in North China. In dendrochemistry, the connection between pollution history and pollution source had been explored. A significant progress occurred in tree-ring stable carbon isotopes. The concentration of atmospheric CO₂ and climatic signals can be extracted from carbon isotopes. The third stage is from 2010 onward. Tree-ring width studies have exploded in Southeast China with over 50 papers published. A large amount of studies show that tree growth significantly responded to cold-season temperature in low and middle elevations, and to warm-season temperature in middle and high elevations. At some sites tree growth responded both to cold-season and warm-season temperatures. Only at a few sites tree growth suffered from water stress. That tree growth was limited by water was further verified in North China. A key progress is the input of tree-ring stable oxygen isotopes which mainly reflect the warm-season water conditions. Meanwhile, a lot of attention has been paid to the details in oxygen isotope studies, such as the replication of tree-ring samples, intra-annual stable oxygen isotopes variations, etc. Dendrochemistry has achieved some development, however, a large amount of measurements should be done in order to solve some critical problems in dendrochemistry studies, such as the repeatability of measurements among different samples, and the lateral transfer of elements among tree rings.
Key words:Southeast China/
North China/
tree-ring width/
tree-ring stable isotope/
dendrochemistry/
temperature/
moisture



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