Chin J Plant Ecol ›› 2021, Vol. 45 ›› Issue (12): 1303-1313.DOI: 10.17521/cjpe.2021.0289

• Research Articles • Previous Articles     Next Articles

Comparative analysis of growth characteristics and climate responses in four coniferous tree species of southern Luoxiao Mountains

WANG Zhao-Peng1,2, ZHANG Tong-Wen2, YUAN Yu-Jiang2, ZHANG Rui-Bo2, YU Shu-Long2, LIU Rui2, Shirenna JIAHAN2,3, GUO Dong2,3, WANG Yong-Hui1,*()   

  1. 1Key Laboratory of Lake Environment and Resources in Arid Land, School of Geographical Science and Tourism, Xinjiang Normal University, Ürümqi 830054, China
    2Key Laboratory of Tree-ring Physical and Chemical Research of China Meteorological Administration, Xinjiang Laboratory for Tree Ring Ecology, Ürümqi 830002, China
    3College of Resources and Environmental Sciences, Xinjiang University, Ürümqi 830046, China
  • Received:2021-08-11 Accepted:2021-10-08 Online:2021-12-20 Published:2021-11-11
  • Contact: WANG Yong-Hui
  • Supported by:
    National Natural Science Foundation of China(41975095);Key Laboratory Opening Subject of Xinjiang Uygur Autonomous Region(2018D04028);Tianshan Youth Project of Xinjiang Uygur Autonomous Region-Outstanding Young Talent(2019Q007)

Abstract:

Aims In this study we constructed and analyzed the standardized chronology of tree-ring width in four coniferous tree species, Abies beshanzuensisvar. ziyuanensis, Fokienia hodginsii, Pinus massoniana and Tsuga chinensis, in southern Luoxiao Mountains, in order to investigate the radial growth characteristics of each species before and after the abrupt change in temperature, and to compare the similarities and differences among the four species in response to climate factors.

Methods Chronologies were developed from the cross-dated ring width series using the program ARSTAN, based on the standardized dendrochronological method. The time trend series of meteorological data from 1960 to 2013 and tree-ring chronologies were analyzed with a linear fitting method. The Mann-Kendall method was used to test the mutation of meteorological data. Growth-climate relationships were determined by calculating the Pearson correlation coefficients between tree-ring width chronologies and climatic factors.

Important findings The tree-ring width chronology of F. hodginsii provided less climatic signals than other three species. The radial growth of T. chinensis was affected by both temperature and precipitation: it was positively correlated with the precipitation in October of the previous year, but negatively with temperature. A. beshanzuensis var. ziyuanensis had a significant positive correlation with precipitation only in August of the previous year. P. massoniana was significantly positively correlated with the mean maximum air temperature in March of the previous year and January of the current year, and significantly negatively with the mean minimum air temperature in July of the previous year and August of the current year. F. hodginsii had a significant positive correlation with precipitation only in March of the current year. When temperature changed abruptly, the pattern of changes in the tree-ring width index was similar among the four species, all with a downward trend. The radial growth response to climate factors was enhanced in all species but A. beshanzuensis var. ziyuanensis, and their growth was inhibited by drought stress following warming. Results from this study provide information concerning the effects of climate change on tree growth and theoretical basis for forest ecosystem management and protection in the southern Luoxiao Mountains.

Key words: Luoxiao Mountains, tree-ring width, coniferous trees, climatic factor