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Chinese Journal of Applied Ecology ›› 2021, Vol. 32 ›› Issue (10): 3497-3504.doi: 10.13287/j.1001-9332.202110.002

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Responses of tree-ring width of Pinus tabuliformis plantation to climatic factors in Songshan Mountains, central China

CUI Jia-yue1, PENG Jian-feng1,2,3*, LI Jing-ru1, LI Xuan1, PENG Meng1, YANG Liu1   

  1. 1College of Geography and Environmental Science, Henan University, Kaifeng 475004, Henan, China;
    2National Demonstration Center for Environmental and Planning, Henan University, Kaifeng 475004, Henan, China;
    3Key Laboratory of Geospatial Technology for the Middle and Lower Yellow River Regions, Ministry of Education, Kaifeng 475004, Henan, China
  • Received:2020-12-15 Revised:2021-03-15 Online:2021-10-15 Published:2022-04-15
  • Contact: * E-mail: jfpeng@vip.henu.edu.cn
  • Supported by:
    National Natural Science Foundation of China (41671042,42077417).

Abstract: Taking Pinus tabuliformis plantations at different slopes in Songshan Mountains, Henan Province, China as subjects, we established different residual chronologies of P. tabuliformis in Paomaling (PML) and Junjifeng (JJF) and whole region (RC). The results showed that the chro-nological quality of PML was higher than that of JJF. Chronologies of PML and JJF had more climate information, which had significant positive relationship with mean temperature in current February, mean temperature and mean maximum temperature at the end of growing season (September-October), and significant negative relationship with mean maximum temperature in current May. The response of radial growth of P. tabuliformis to climate differed in PML and JJF. Radial growth of P. tabuliformis in PML was positively correlated with mean minimum temperature in March and precipitation in September, while that in JJF was positively correlated with precipitation in May and mean minimum temperature in September. Residual chronologies of P. tabuliformis in whole region contained more climate information. The multiple regression analysis method was used to simulate that the main limiting factors of tree-ring width growth of P. tabuliformis, which was a range of temperature indicators, especially current mean temperature in September. The result was consistent with that of correlation analysis. This study could provide basic services for forest protection and ecological construction in Songshan Mountains region.

Key words: Songshan Mountains, Pinus tabuliformis, tree-ring width, climate response, slope aspect