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应用生态学报 ›› 2023, Vol. 34 ›› Issue (9): 2330-2336.doi: 10.13287/j.1001-9332.202309.008

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太岳山不同年龄油松早材树脂道面积对气候变化的响应

董一博1, 解萍萍1, 刘洋1, 孙冰喆1, 张先亮1,2,3*   

  1. 1河北农业大学林学院, 河北保定 071001;
    2河北省城市森林健康技术创新中心, 河北保定 071001;
    3国家林业与草原局塞罕坝森林培育国家长期科研基地, 河北承德 068456
  • 收稿日期:2023-03-21 修回日期:2023-07-28 出版日期:2023-09-15 发布日期:2024-03-16
  • 通讯作者: *E-mail: lxzhxl@hebau.edu.cn; zhxianliang85@gmail.com
  • 作者简介:董一博, 女, 2002年生, 本科生。主要从事树木年轮研究。E-mail: yishifucun@126.com
  • 基金资助:
    河北省省级科技计划项目(226Z6801G)和河北农业大学大学生创新创业训练计划项目(2023220)资助

Response of resin canal area of Pinus tabuliformis with different ages to climate change in Taiyue Mountains, China

DONG Yibo1, XIE Pingping1, LIU Yang1, SUN Bingzhe1, ZHANG Xianliang1,2,3*   

  1. 1College of Forestry, Hebei Agricultural University, Baoding 071001, Hebei, China;
    2Urban Forest Healthy Technology Innovation Center in Hebei Province, Baoding 071001, Hebei, China;
    3National Forestry and Grassland Bureau Saihanba Forest Cultivation National Long-term Scientific Research Base, Chengde 068456, Hebei, China
  • Received:2023-03-21 Revised:2023-07-28 Online:2023-09-15 Published:2024-03-16

摘要: 为探究不同年龄阶段油松树脂道面积对气候变化的响应,以山西省太岳山油松人工林为对象,研究1972—2017年幼龄期、中龄期、近熟期、成熟期和过熟期油松的树脂道面积与气候因子的关系。结果表明:55.7%~75.2%的树脂道出现在早材中,成熟期与过熟期树脂道面积最大,其次是近熟期、中龄期、幼龄期。晚材年均树脂道面积在近熟期至成熟期显著增大,而在其他时期差异不显著。中龄期早材每年树脂道总面积与生长季(5—7月)最低气温呈显著负相关。过熟期早材每年树脂道总面积与生长季最低气温呈显著负相关,而与非生长季(前一年9月—当年4月)的干旱指数(PDSI)呈显著正相关。幼龄期、近熟期和成熟期的早材树脂道总面积受气候影响较小。生长季最低气温是早材树脂道总面积的限制因子,随着树龄的增加,非生长季的干旱逐渐成为早材树脂道总面积的限制因子。非生长期干旱程度增强以及生长季最低气温的升高,均导致早材树脂道总面积减少。在全球变暖的背景下,早材树脂道面积可能会逐渐减少,并且过熟期油松的早材树脂道面积减少得最多。

关键词: 油松, 早材, 晚材, 树脂道

Abstract: To investigate the responses of resin canal area of Pinus tabuliformis with different ages to climate change, we analyzed the relationship between the resin canal area and climate factors from 1972 to 2017 in P. tabuliformis plantation at young age, middle age, near-mature, mature, and over-mature periods in Taiyue Mountains, Shanxi Province. The results showed that 55.7% to 75.2% of resin canal occurred in earlywood. The mature and over-mature periods had the largest resin channel area, sequentially followed by near mature, middle age, and young age periods. Annual mean latewood resin canal area increased significantly in near-mature period and mature period, but not in other periods. There was a significant negative correlation between earlywood resin canal area and minimum temperature during the growing season (May to July) for trees at middle age period. Earlywood resin canal area of mature trees showed significant negative correlation with minimum temperature during the growing season, but significant positive correlation with drought (PDSI) in the non-growing season (previous September to current April). The total area of earlywood resin canal at the young, near-mature, and mature periods was less influenced by climate than other periods. The minimum growing season temperature was a limiting factor to earlywood resin canal growth, while the non-growing season drought gradually became a limiting factor for earlywood resin canal with increasing tree age. The total area of earlywood resin canal decreased with increasing non-growing season drought and increasing growing season minimum temperature. In the context of global warming, the earlywood resin canal area may gradually decrease at all five periods, and the most reduction in the over-mature stage.

Key words: Pinus tabuliformis, earlywood, latewood, resin canal