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Chinese Journal of Applied Ecology ›› 2023, Vol. 34 ›› Issue (5): 1178-1186.doi: 10.13287/j.1001-9332.202305.004

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Radial growth responses of three coniferous species to climate change on the southern slope of Funiu Mountains, China

LI Zhenjiang1, YU Chenyi1, LIU Shengyun1, YAN Ruihuan1, HUANG Xindeng1, LIU Xiaojing2, CHEN Zhicheng3, WANG Ting1*   

  1. 1College of Forestry, Henan Agricultural University, Zhengzhou 450002, China;
    2Baotianman National Nature Reserve, Nanyang 474420, Henan, China;
    3Key Laboratory of Forest Ecology and Environment of National Forestry and Grassland Administration, Ecology and Nature Conservation Institute, Chinese Academy of Forestry, Beijing 100091, China
  • Received:2022-12-28 Accepted:2023-02-15 Online:2023-05-15 Published:2023-11-15

Abstract: Funiu Mountains are located in a transition region between warm temperate zone and northern subtropical region, where a variety of plant species are distributed with sensitive response to climate change. Their response characteristics to climate change are still unclear. We developed the basal area increment (BAI) index chronologies of Pinus tabuliformis, P. armandii, and P. massoniana in the Funiu Mountains to examine their growth trend and their sensitivity to climatic change. The results showed that the BAI chronologies gave a clue that the three conife-rous species had similar radial growth rate. The large Gleichlufigkeit (GLK) indices among the three BAI chronologies also indicated that the three species had a similar growth trend. Results of correlation analysis showed that the three species also had similar response to climatic change to a certain extent. Radial growth of all the three species was significantly positively correlated with the total monthly precipitation in December of previous year and June of the current year, but negatively correlated with the precipitation in September and the mean monthly temperature in June of the current year. There were some differences in the responses of the three coniferous to climate change. P. massoniana had a significant negative correlation with the mean temperature in March, and a significant positive correlation with the precipitation in March, while P. armandii and P. massoniana were affected negatively by the maximum temperature in August. Results of the moving correlation analysis showed that the three coniferous species had some similar sensitivity to climate change. Their positive responses to precipitation in previous December consistently increased, as well as the negative correlation with precipitation in current September. As to P. masso-niana, they had a relatively stronger climatic sensitivity and higher stability than the other two species. It would be more suitable for P. massoniana trees on the southern slope of the Funiu Mountains under global warming.

Key words: Funiu Mountains, coniferous tree, basal area increment index, climate response