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生态学杂志 ›› 2025, Vol. 44 ›› Issue (9): 2880-2886.doi: 10.13292/j.1000-4890.202509.025

• 研究报告 • 上一篇    下一篇

新疆塔里木河上游不同生境植物多样性与群落稳定性

曾勇1,2*,买热孜亚·吾买尔江1,2,阿卜杜合力力·伊敏1,2,艾克拜尔·努力买买提1,2,梁月佳1,2,刘亚璇1,2
  

  1. (1新疆师范大学地理科学与旅游学院, 乌鲁木齐 830054;  2新疆干旱区湖泊环境与资源重点实验室, 乌鲁木齐 830054)

  • 出版日期:2025-09-10 发布日期:2025-09-03

Plant diversity and community stability in different habitats in the upper reaches of Tarim River, Xinjiang.

ZENG Yong1,2*, Maireziya Wumaierjiang1,2, Abuduhelili Imin1,2, Aikebaier Nulimaimaiti1,2, LIANG Yuejia1,2, LIU Yaxuan1,2   

  1. (1School of Geography and Tourism, Xinjiang Normal University, Urumqi 830054, China;  2Key Laboratory of Lake Environment and Resources in Arid Regions of Xinjiang, Urumqi 830054, China).

  • Online:2025-09-10 Published:2025-09-03

摘要: 塔里木河上游是典型的干旱脆弱生态体系,其植物多样性和群落稳定性对生态系统平衡和可持续发展起着重要作用。本研究探讨了塔里木河上游3种不同生境(河岸边、过渡带、沙漠边缘)的物种多样性与群落稳定性及其影响因素。结果表明,在塔里木河上游的3种不同生境中,优势种分别是芦苇(Phragmites australis)、胡杨(Populus euphratica)和白茎盐生草(Halogeton arachnoideus)。物种数量随着离岸距离的增大呈先增加后减少的趋势。沿着河岸边过渡带沙漠边缘,物种多样性先增加后减少。群落稳定性大小表现为沙漠边缘>过渡带>河岸边。PCA分析表明,物种多样性与土壤有机质呈正相关,而与地下水埋深、土壤pH值、总盐呈负相关。结构方程模型表明,物种多样性、总盐与群落稳定性呈负相关。这些结果为进一步研究塔里木河上游生态环境的稳定性和可持续性提供了理论依据。


关键词: 物种多样性, 群落稳定性, 环境因子, 塔里木河上游

Abstract: The upper reaches of the Tarim River are a typical arid and fragile ecosystem. Plant diversity and community stability play an important role in ecosystem balance and sustainable development. We explored species diversity and community stability in different habitats (riverbank, transition zone, and desert margin) in the upper reaches of the Tarim River Basin, as well as the influencing factors. The results showed that Phragmites australis, Populus euphratica, and Halogeton arachnoideus were the dominant species in the habitats of riverbank, transition zone, and desert margin, respectively. Along the riverbank-transition zone-desert margin, species diversity increased first and then decreased. The community stability in different habitats was manifested as follows: desert margin > transition zone > riverbank. The results of PCA showed that species diversity was positively correlated with soil organic matter and was negatively correlated with groundwater depth, soil pH, and total salt content. Structural equation modeling revealed that total salt content and species diversity were negatively correlated with community stability. These results provide a theoretical basis for further research on ecosystem stability and sustainability in the upper reaches of the Tarim River.


Key words: species diversity, community stability, environmental factor, the upper reaches of the Tarim River