祁连山西部青海云杉径向生长对气候因子的响应

doi:10.13287/j.1001-9332.202110.020

应用生态学报 ›› 2021, Vol. 32 ›› Issue (10): 3585-3593.doi: 10.13287/j.1001-9332.202110.020

祁连山西部青海云杉径向生长对气候因子的响应

夏敬清^1,2, 勾晓华^1,2, 王玲玲^1,2, 王放^1,2, 张军周^1,2, 张芬^1,2*

¹兰州大学资源环境学院西部环境教育部重点实验室, 兰州 730000;
²兰州大学甘肃连城森林生态野外科学观测研究站, 兰州 730333

收稿日期:2021-04-15 修回日期:2021-07-20 出版日期:2021-10-15 发布日期:2022-04-15
通讯作者: * E-mail: fzhang@lzu.edu.cn
作者简介:夏敬清, 男, 1996年生, 硕士研究生。主要从事树轮生态学及树轮解剖学研究。E-mail: xiajq2019@lzu.edu.cn
基金资助:
国家自然科学基金项目(41771046,41790422,41991254,42001043)资助

Stem radial growth of Picea crassifolia in response to climatic factors in the western Qilian Mountains, China

XIA Jing-qing^1,2, GOU Xiao-hua^1,2, WANG Ling-ling^1,2, WANG Fang^1,2, ZHANG Jun-zhou^1,2, ZHANG Fen^1,2*

¹Ministry of Education Key Laboratory of Western China's Environmental Systems, College of Earth Environmental Sciences, Lanzhou University, Lanzhou 730000, China;
²Gansu Liancheng Forest Ecosystem Field Observation and Research Station, Lanzhou University, Lanzhou 730333, China

Received:2021-04-15 Revised:2021-07-20 Online:2021-10-15 Published:2022-04-15
Contact: * E-mail: fzhang@lzu.edu.cn
Supported by:
National Nature Science Foundation of China (41771046, 41790422, 41991254, 42001043).

摘要/Abstract

摘要： 利用树木径向生长监测仪(Dendrometer)和自动气象站在祁连山西部对8棵青海云杉的径向生长及环境因子进行了连续监测研究。结果表明: Gompertz函数拟合结果显示,2018—2020年青海云杉的径向生长分别开始于4月19日、4月17日和4月10日,在日平均气温超过5.5 ℃时径向生长开始;青海云杉生长结束时间分别为8月17日、8月21日和7月19日,生长结束时间与生长季末期降水量有关。研究区青海云杉径向生长量受干旱抑制强烈,其中与7月的日均温(负相关)和日降水量(正相关)相关性最高,与生长季初期(5月)的日降水量的相关关系存在年际间差异。

关键词: 青海云杉, 旱地森林, 环境因子, 径向生长, Dendrometer

Abstract: The radial growth of eight individuals of Picea crassifolia and environmental factors were monitored by Dendrometer and automatic meteorological station in the western Qilian Mountains. The Gompertz function fitted results showed that the radial growth of P. crassifolia started on April 19, April 17, and April 10 in 2018, 2019 and 2020, respectively, and that the radial growth started when daily mean temperature exceeded 5.5 ℃. The radial growth of P. crassifolia ended on August 17, August 21, and July 19 in the three years, respectively. The ending time of radial growth was related to precipitation at the end of growing season. The radial growth of P. crassifolia was strongly inhibited by drought, and it had the strongest correlation with daily mean temperature (negative correlation) and daily precipitation (positive correlation) in July. The correlation of radial growth with the daily precipitation in the early growing season (May) showed significant inter-annual variation.

Key words: Picea crassifolia, dryland forest, environmental factor, stem radial growth, Dendrometer

夏敬清, 勾晓华, 王玲玲, 王放, 张军周, 张芬. 祁连山西部青海云杉径向生长对气候因子的响应[J]. 应用生态学报, 2021, 32(10): 3585-3593.

XIA Jing-qing, GOU Xiao-hua, WANG Ling-ling, WANG Fang, ZHANG Jun-zhou, ZHANG Fen. Stem radial growth of Picea crassifolia in response to climatic factors in the western Qilian Mountains, China[J]. Chinese Journal of Applied Ecology, 2021, 32(10): 3585-3593.

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祁连山西部青海云杉径向生长对气候因子的响应

Stem radial growth of Picea crassifolia in response to climatic factors in the western Qilian Mountains, China

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