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林业资源管理 ›› 2019, Vol. 0 ›› Issue (2): 60-66.doi: 10.13466/j.cnki.lyzygl.2019.02.009

• 科学研究 • 上一篇    下一篇

天然华北落叶松径向生长对气候变化的响应

陈忠震1,2(), 石君杰1,2, 贾存1,2, 李永祥3, 刘家丞3, 金辉4, 李永宁1,2()   

  1. 1.河北农业大学 林学院,河北 保定 071000
    2.河北省林木种质资源与森林保护重点实验室,河北 保定 071000
    3.河北省木兰围场国有林场管理局,河北 围场 068450
    4.陕西省凤翔县林业技术推广站,陕西 凤翔 721400
  • 收稿日期:2018-12-20 修回日期:2019-04-01 出版日期:2019-04-28 发布日期:2020-09-22
  • 通讯作者: 李永宁
  • 作者简介:陈忠震(1992-),男,山东聊城人,在读硕士,主要从事森林经理学研究。Email: 18513119539@163.com
  • 基金资助:
    国家重点研发计划项目(2016YFD060020303)

Response of Radial Growth of Natural Larix principis-rupprechtii to Climatic Change

CHEN Zhongzhen1,2(), SHI Junjie1,2, JIA Cun1,2, LI Yongxiang3, LIU Jiacheng3, JIN Hui4, LI Yongning1,2()   

  1. 1. College of Forestry,Agricultural University of Hebei Province,Baoding 071000,Hebei,China
    2. Hebei Province Key Laboratory of Forest Trees Germplasm Resources and Forest Protection,Baoding 071000,Hebei,China
    3. Mulanweichang National Forest Farm Management Bureau of Hebei Province,Weichang 068450,Hebei,China
    4. Fengxiang County Forestry Technology Promotion Station of Shaanxi Province,Fengxiang 721400,Shaanxi,China
  • Received:2018-12-20 Revised:2019-04-01 Online:2019-04-28 Published:2020-09-22
  • Contact: LI Yongning

摘要:

在气候暖干化趋势下,进行森林经营树种对气候变化的响应研究,有助于适宜的经营技术构建以及森林经营对气候变化的应对。选取围场县龙头山林场天然华北落叶松,建立年轮宽度年表,应用相关分析、Mann-Kendall检验、逐步回归等方法,研究华北落叶松径向生长对气候变化的响应。结果表明:1)近60年来,本地区气温显著升高,在1980年发生升高突变;降水量有减少趋势,但变化趋势不明显。2)华北落叶松径向生长受气温与降水的双重影响,与多数气温因子呈显著负相关,与多数降水因子呈显著正相关,当年3,4月份降水是树木径向生长的重要限制因素。3)生长季极端高温与径向生长呈显著负相关,湿润指数与径向生长呈极显著正相关。4)利用当年生长季平均温度及3,4月份降水量和湿润指数模拟华北落叶松径向生长,发现在暖干化趋势下,研究区华北落叶松的生长将呈现减缓趋势。

关键词: 华北落叶松, 气候变化, 径向生长, 年表, 围场县

Abstract:

Under the trend of climate warming and drying,the study on response of forest management tree species to climate change helps contribute to the development of adaptive management technologies and to the reaction to climate change.Natural Larix principis-rupprechtii trees were selected to establish the tree ring width chronology at Longtoushan Forest Farm in Weichang County.Correlation analysis,Mann-Kendall test and stepwise regression were used to analyze the response of radial growth of Larix principis-rupprechtii to climate change.The results indicated that:(1)The temperature in the region has increased significantly with an abrupt change in 1980,and the precipitation has decreased with an unobvious trend for nearly 60 years.(2)The radial growth of Larix principis-rupprechtii was jointly affected by temperature and precipitation,and had significantly negative correlation with most temperature factors and significantly positive correlation with most precipitation factors.The precipitation in March and April was an important limiting factor for radial growth in this region.(3)There was significant negative correlation between extreme high temperature and radial growth in the growing season.The wetness index was significantly positively correlated with radial growth.(4)The prediction model of tree ring width growth was constructed using average temperature of current growing season,total precipitation in March and April,and wetness index as independent variables.It was found that the radial growth of Larix principis-rupprechtii would become slower with the warmer and drier climate.

Key words: Larix principis-rupprechtii, climate change, radial growth, chronology, Weichang county

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