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应用生态学报 ›› 2017, Vol. 28 ›› Issue (11): 3451-3460.doi: 10.13287/j.1001-9332.201711.008

• •    下一篇

小兴安岭红松和鱼鳞云杉径向生长对气候变化的响应

于健1,2, 刘琪璟1*, 周光1, 孟盛旺1, 周华1, 徐振招1, 史景宁1, 杜文先1   

  1. 1 北京林业大学林学院, 北京 100083
    2 江苏农林职业技术学院, 江苏句容 212400
  • 出版日期:2017-11-18 发布日期:2017-11-18
  • 通讯作者: *mail:liuqijing@bjfu.edu.cn
  • 作者简介:于健, 男, 1986年生, 博士研究生.主要从事年轮气候学研究.E-mail:yujian1986829@sina.com
  • 基金资助:
    本文由国家自然科学基金项目(31670436)资助

Response of radial growth of Pinus koraiensis and Picea jezoensis to climate change in Xiao-xing’anling Mountains, Northeast China

YU Jian1,2, LIU Qi-jing1*, ZHOU Guang1, MENG Sheng-wang1, ZHOU Hua1, XU Zhen-zhao1, SHI Jing-ning1, DU Wen-xian1   

  1. 1 College of Fore-stry, Beijing Forestry University, Beijing 100083, China
    2 Jiangsu Vocational College of Agriculture and Forestry, Jurong 212400, Jiangsu, China
  • Online:2017-11-18 Published:2017-11-18
  • Contact: *mail:liuqijing@bjfu.edu.cn
  • Supported by:
    This work was supported by the National Natural Science Foundation of China (31670436)

摘要: 基于树木年代学方法,利用小兴安岭低海拔阔叶红松林优势树种红松和鱼鳞云杉树轮宽度资料,分别建立年轮宽度年表,探讨影响2个树种径向生长的关键气候因子.结果表明:2个树种对气候因子的响应存在差异,红松较鱼鳞云杉对气候因子的响应更加敏感,更适合用于年轮气候学研究;响应函数分析表明,红松径向生长与当年6月平均温度呈显著负相关,与当年6月降水量呈显著正相关,而鱼鳞云杉与气候因子未表现出显著相关关系;空间相关分析揭示,红松年表具有较大的空间代表性,相关性最高出现在研究区域附近;升温导致的干旱胁迫是限制红松树木生长的主要原因,如果未来全球气温进一步增加,将对红松产生不利的影响;一些大尺度的大气-海洋变化的耦合作用可能对小兴安岭红松径向生长产生影响.

Abstract: Based on dendrochronological methods, we established residual chronologies of Pinus koraiensis and Picea jezoensis, with the dominant species of broadleaved Korean pine mixed forest at low altitudes chosen as the research object, to identify the key climatic factors affecting the radial growth of the two species in Xiaoxing’anling Mountains, Northeast China. The results showed that the responses of the two species to climate factors were different, and P. koraiensis was more sensitive, and hence more suitable for dendroclimatological analysis. Response function coefficients indicated that the radial growth of P. koraiensis negatively correlated with June mean temperature of current year, while positively correlated with precipitation in June of current year. There was no significant correlation between P. jezoensis and all climate variables. Spatial correlation analysis revealed that variations in chronology of P. koraiensis contained strong regional signals, and the highest correlation occurred in the vicinity of the study area. Warming caused drought stress, which was the main factor that limited the growth of P. koraiensis, and it might have adverse effects on the Korean pine if global temperature continues to increase. The coupling effects of large-scale atmospheric-oceanic variability may affect the radial growth of P. koraiensis in Xiaoxing’anling Mountains.