Arid Zone Research ›› 2022, Vol. 39 ›› Issue (6): 1885-1895.doi: 10.13866/j.azr.2022.06.19

• Plant Ecology • Previous Articles     Next Articles

Forestry structure and spatial distribution pattern of different age tree species in forest area of eastern Altai Mountain

XU Qiao1,2(),ZHAO Wanyu2(),WEI Yan1,YE Mao3,ZHAO Xinfeng2   

  1. 1. College of Grassland Sciences, Xinjiang Agricultural University, Urumqi 830052, Xinjiang, China
    2. Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, Xinjiang, China
    3. College of Grassland and Environment Sciences, Xinjiang Agricultural University, Urumqi 830054, Xinjiang, China
  • Received:2022-04-27 Revised:2022-06-02 Online:2022-11-15 Published:2023-01-17
  • Contact: Wanyu ZHAO E-mail:15739036377@sina.cn;wanyuzhao@ms.xjb.ac.cn

Abstract:

To clarify the spatial distribution pattern of trees in the Fuyun forest area of the Altai Mountain and provide a reference for biodiversity protection and forest management in this area, the tree species composition, tree diameter class structure, habitat characteristics of different tree species in different age forests, and spatial distribution pattern of dominant species in the Fuyun forest region of the Altai mountain were analyzed. The results showed that: (1) Picea obovata, Larix sibirica, Betula pendula, and Populus tremula were the dominant species in the Fuyun forest region, the individual number accounted for 99.99% of the total number, rare species accounted for 0.013% of the total species. (2) The diameter class structure of the dominant species was similar to that of all trees, which was similar to the inverted “U” shape, with medium diameter class individuals in the majority. (3) From the relationship between species distribution and environmental factors, altitude and slope direction have great influence, but the relationship with soil thickness is not obvious. (4) The spatial distribution pattern of the four tree species is cluster distribution, and according to the age groups, their young forests are evenly distributed. The spatial distribution pattern of trees is the result of long-term adaptation between the plant species and its environment,and it can be signals, such as the forest dynamics, plant revival, and expansion of different tree species, and the relationship between trees as well as the environments.

Key words: Picea obovata, Larix sibirica, diameter class structure, spatial distribution pattern, habitat characteristics, Altai Mountain