自然保护地2025，Vol.5Issue(1)：97-111,15.DOI:10.12335/2096-8981.2024040102
人工恢复条件下新疆阿魏种群的数量特征及空间分布格局
Study on the quantitative characteristics and spatial distribution pattern of Ferula sinkiangensispopulation in Xinjiang under artificial restoration
侯智文 1张雨晴 1钟智聪 1贺炯坤 1许贞魏 1杨允菲 2韩大勇1
作者信息
- 1. 伊犁师范大学生物科学与技术学院,新疆伊宁 835000
- 2. 东北师范大学草地科学研究所,长春 130024
- 折叠
摘要
Abstract
[Objectives]Ferula sinkiangensis is a rare and endangered plant species endemic to the Yili region, with a very small population in the wild. At present, the basic quantitative characteristics of Ferula sinkiangensis population remain unknown.[Methods]Based on the data of 125 m×5 m sample plots, this study predicted the population dynamics of Ferula sinkiangensis by one-time moving average method, analyzed the population density, crown diameter and other quantitative characteristics of Ferula sinkiangensis nature reserve in different slope directions and positions by one-way analysis of variance and two-way analysis of variance, and analyzed its spatial distribution pattern by point pattern method.[Results] Ferula sinkiangensis was distributed across all diameter classes witin the nature reserve, with the greatest number of individuals observed in the 0-10.0 cm diameter class. There were significant spatial differences in population density and crown diameter between different slope directions and slope positions. The population density was the highest in the east slope (7.64 ±7.62) plants/m2 and the downhill position (4.67±5.25) plants/m2, and the crown diameter was the highest in the north slope (42.4 ±20.0) plants/m2 and the downhill position (24.2±19.0) plants/m2. With regard to the spatial distribution pattern, Ferula sinkiangensis exhibited the characteristics of small-scale aggregation (< 27 cm) and large-scale random distribution (≥ 27 cm) in most plots on the eastern and southern slopes, while the western and northern slopes were mainly randomly distributed, even if there was aggregation, the degree of aggregation was small. The results of variance analysis showed that the slope direction had the greatest influence on the population density, crown diameter and population aggregation scale of Ferula sinkiangensis, while the slope position had the smallest influence, and the interaction effect between them was in the middle. [Conclusions]The growth and the spatial distribution of Ferula sinkiangensis population were significantly affected by slope direction and slope position, which was more beneficial to plant growth under the conditions of northern slope and downslope position, and can be used as a reference for in-situ artificial protection of Ferula sinkiangensis.关键词
新疆阿魏/坡向/坡位/种群数量特征/空间分布格局Key words
Ferula sinkiangensis/slope aspect/slope position/quantitative characteristics of population/spatial distribution pattern分类
生物学引用本文复制引用
侯智文,张雨晴,钟智聪,贺炯坤,许贞魏,杨允菲,韩大勇..人工恢复条件下新疆阿魏种群的数量特征及空间分布格局[J].自然保护地,2025,5(1):97-111,15.
