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林业资源管理 ›› 2019›› Issue (2): 67-72.doi: 10.13466/j.cnki.lyzygl.2019.02.010

• 科学研究 • 上一篇    下一篇

哈巴雪山高山松径向生长对气候变化的响应

王荷1(), 周军1, 覃鑫浩2, 张贇3   

  1. 1.苏州农业职业技术学院,江苏 苏州 215008
    2.国家林业和草原局调查规划设计院,北京 100714
    3.西南林业大学,昆明 650224
  • 收稿日期:2018-11-18 修回日期:2019-02-26 出版日期:2019-04-28 发布日期:2020-09-22
  • 作者简介:王荷(1982-),女,云南红河州人,讲师,硕士,主要从事树木生态学及园林植物的研究工作。Email: 86978943@qq.com
  • 基金资助:
    国家自然科学基金项目(31600395)

Radial Growth Responses of Pinus densata to Climate Change in Haba Snow Mountain,Southwest China

WANG He1(), ZHOU Jun1, QIN Xinhao2, ZHANG Yun3   

  1. 1. Suzhou Polytechnic Institute of Agriculture,Suzhou 215008,China
    2. Academy of Forest and Grassland Inventory and Planning,National Forestry and Grassland Administration,Beijing 100714,China
    3. Southwest Forestry University,Kunming 650224,China
  • Received:2018-11-18 Revised:2019-02-26 Online:2019-04-28 Published:2020-09-22

摘要:

基于树木年轮学方法,在哈巴雪山海拔上、下限采集高山松年轮样本,建立差值年表并分析其与气候因子关系,以揭示影响该区域高山松(Pinus densata)径向生长的主要气候因子。结果表明:海拔上限高山松径向生长主要受上年8月水热状况影响,还与当年3月平均最高温呈显著正相关、与5月平均温和6月降水均呈显著负相关;海拔下限高山松径向生长主要受当年5月水热状况影响,还与上年12月降水呈显著正相关;哈巴雪山高山松径向生长与气候因子关系较为稳定。通过对横断山区树轮研究的补充,可为未来气候变化下森林保护提供理论依据。

关键词: 滇西北高原, 树木年轮, 气候响应, 横断山脉, 温度与降水

Abstract:

Based on the dendrochonological method,we collected tree ring samples at upper and lower distributional limits of Pinus densata in Haba Snow Mountain to reveal the key climatic factors affecting tree radial growth by studying the relationship between residual chronologies and climatic factors.The results showed that radial growth of P.densata at the upper distributional limits was mainly affected by the hydrothermal condition in previous August,its growth was also significantly correlated with monthly maximum temperature in current March (positive),monthly mean temperature in current May (negative),and precipitation in current June (negative). At lower distributional limits,hydrothermal condition in current May was the main factor affecting its radial growth,while precipitation in December of previous year also promoted its growth.The relationship between the radial growth of P.densata and climate factors was stable.This study is a favorable supplement to the tree ring research in Hengduan Mountains,and it can also provide a theoretical basis for forest protection under future climate change.

Key words: northwest Yunnan plateau, tree ring, climate response, Hengduan mountains, temperature and precipitation

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