%0 Journal Article
%A Yue GUAN
%A Yan-Xin WANG
%A Jia-Yao CHU
%A Lin-Jiao FENG
%A Xiao-Meng SONG
%A Long ZHOU
%T Age structure and dynamic analysis of *Amygdalus ledebouriana* population in Xinjiang, China
%D 2023
%R 10.17521/cjpe.2022.0396
%J Chinese Journal of Plant Ecology
%P 967-977
%V 47
%N 7
%X **Aims** Taking the population of *Amygdalus ledebouriana* in Balruk Mountain of Xinjiang as the research object, through the investigation of the natural population of *A*.* ledebouriana* in Xinjiang, and to provide a certain theory and research basis for the conservation, management and restoration of *A*.* ledebouriana*population.

**Methods** The population of *A*.* ledebouriana* was investigated and counted by typical sample method. The static life table of *A*.* ledebouriana*population was compiled using “space substitution time” and uniform sliding technologies, and thus the dynamic change of the population number was analyzed.

**Important findings** 1) The number of individuals in the III age class of *A*.* ledebouriana*population in Xinjiang was the largest, accounting for 19.19% of the total individual number. The number of individual plants in the population increased first and then decreased with the increase of age class. The diameter class structure of the population was “spindle”. The age structure of *A*.* ledebouriana*population in Xinjiang belongs to the recession type. 2) The survival curve of *A*. *ledebouriana* was close to the distribution of Deevey-II, and the death peak of the population appeared in the VIII age class, with a mortality rate of 58%. 3) Dynamic change index (*V*_{pi}), dynamic change index under external disturbance (*V*′_{pi}) of *A*. *ledebouriana* population > 0, but *V'*_{pi} was close to 0, and the maximum risk probability in random disturbance (*P*_{max}) of the population under external environmental interference was 0.38%, indicating that the growth trend of the population was not obvious when it was randomly disturbed by the outside world. 4) After 2, 3, 4, 5, 6, 7, 8, 9 and 10 age classes in the future, the number of young and middle-aged individuals gradually decreases, and the elderly individuals dominate. The lack of seedlings in young individuals is one of the main reasons for the decline of *A*.* ledebouriana* population in Xinjiang. Therefore, in order to ensure the normal regeneration of *A*.* ledebouriana* population, it is very important to adopt some valid measures, for example, increase the research in the regeneration of *A*.* ledebouriana* seedlings in the future, including properly carrying out artificial tending, and protect the *A*.* ledebouriana* population by closing the mountains and raising forests in Xinjiang.

%U https://www.plant-ecology.com/EN/10.17521/cjpe.2022.0396