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中国农学通报

中国农学通报 ›› 2026, Vol. 42 ›› Issue (15): 150-156.doi: 10.11924/j.issn.1000-6850.casb2025-0970

• 资源·环境·生态·土壤·气象 • 上一篇    下一篇

祁连山区蕨麻功能性状与根际效应对土壤因子的响应

张道百1(), 韩欣颖1, 李军乔1,2,3, 闵星星4, 景美玲1,2,3()   

  1. 1 青海民族大学生态环境与资源学院， 西宁 810007
    2 青海省特色经济植物高值化利用重点实验室， 西宁 810007
    3 国家民委青藏高原资源化学与生态环境保护重点实验室， 西宁 810007
    4 巴中市农林科学研究院， 四川巴中 636000
  • 收稿日期:2025-12-09 修回日期:2026-04-14 出版日期:2026-08-15 发布日期:2026-08-13
  • 通讯作者:
    景美玲，女，1987年出生，陕西宝鸡人，副教授，博士，研究方向：退化草地生态修复。通信地址：810007 青海省西宁市城东区八一中路3号 青海民族大学，E-mail：。
  • 作者简介:

    张道百，男，2000年出生，安徽合肥人，硕士研究生在读，研究方向：退化草地生态恢复。通信地址：810007 青海省西宁市城东区八一中路3号，青海民族大学，E-mail：。

  • 基金资助:
    青海省帅才科学家负责制项目“黑土滩修复的乡土生态草种原种繁育技术研究与应用示范”(2024-SF-101); 国家自然科学基金项目“三江源区苔藓结皮对草地早熟禾的促进作用及其机制”(32360283)

Functional Traits of Potentilla anserina L. and Rhizosphere Effects in Qilian Mountain Region: Responses to Soil Factors

ZHANG Daobai1(), HAN Xinying1, LI Junqiao1,2,3, MIN Xingxing4, JING Meiling1,2,3()   

  1. 1 College of Ecological Environment and Resources, Qinghai Minzu University, Xining 810007
    2 Qinghai Provincial Key Laboratory of High Value Utilization of Characteristic Economic Plants, Xining 810007
    3 Key Laboratory of Resource Chemistry and Eco-environmental Protection in Qinghai-Tibet Plateau, State Ethnic Affairs Commission, Xining 810007
    4 Bazhong Academy of Agricultural and Forestry Sciences, Bazhong, Sichuan 636000
  • Received:2025-12-09 Revised:2026-04-14 Published:2026-08-15 Online:2026-08-13

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摘要：

植物功能性状是反映植物生命过程及其对生境筛选结果的可量化特征，是连接环境因素与生态系统功能、结构和过程的关键媒介。植物根系通过根际效应调控根际微域的物质循环，其强度受植物种类和环境因素的显著影响，深入研究其互作机制对揭示土壤-植物系统至关重要。本研究在祁连山区高寒草甸中，通过对4种草地类型中蕨麻的功能性状和根际效应的研究，探究土壤-植物根际-功能性状之间的关系。研究发现：（1）不同草地类型中，蕨麻的根际和非根际土壤在理化性质上存在显著差异(P<0.05)。（2）蕨麻的根际效应强度在不同草地类型间存在差异，其中河滩地最高，半人工补播草地最低。（3）蕨麻的功能性状表现出对土壤理化性质的较强响应，其中单株重与多项土壤指标呈现出显著的相关性(P<0.05)。（4）功能性状与根际效应紧密相关，根长对多项指标的根际效应具有显著的正相关影响(P<0.05)。研究表明，蕨麻的根际效应对土壤有一定的改善作用，有利于高寒草甸生态系统的恢复。

关键词: 功能性状, 根际效应, 蕨麻, 高寒草甸, 不同生境

Abstract:

Plant functional traits are quantifiable characteristics measurable from the cellular to the whole-plant level. They not only represent plant life processes but also reflect the outcome of habitat filtering, thereby closely linking environmental factors to the functions, structure, and processes of ecosystems. Plant roots regulate material cycling within the rhizosphere micro zone through the rhizosphere effect, yet the intensity of this effect varies with plant species and environmental factors. In-depth investigation of such variation is essential for revealing the interaction mechanisms of the soil-plant system. In this study, we examined the functional traits and rhizosphere effect of Potentilla anserina across four grassland types in the alpine meadows of the Qilian Mountains, aiming to explore the relationships among soil properties, the plant rhizosphere, and functional traits. The results showed that: (1) within each grassland type, the physicochemical properties of rhizosphere and non-rhizosphere soils of Potentilla anserina differed significantly (P<0.05). (2) The intensity of the rhizosphere effect of Potentilla anserina varied among grassland types, being highest in the floodplain meadow and lowest in the semi-artificially reseeded grassland. (3) The functional traits of Potentilla anserina exhibited a strong response to soil physicochemical properties, among which individual plant weight was significantly correlated with multiple soil indices (P<0.05). (4) Functional traits were closely associated with the rhizosphere effect; root length had significant positive correlations with the rhizosphere effects of several soil indices (P<0.05). These findings suggest that the rhizosphere effect of Potentilla anserina exerts a certain ameliorative influence on the soil, which is conducive to the restoration of alpine meadow ecosystems.

Key words: functional trait, rhizosphere effect, Potentilla anserina, alpine meadow, different habitats

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