草地学报

草地学报 ›› 2026, Vol. 34 ›› Issue (5): 1787-1797.DOI: 10.11733/j.issn.1007-0435.2026.05.020

• 研究论文 • 上一篇    

高寒草甸不同演替阶段球囊霉素相关土壤蛋白与有机碳变化特征研究

杨晓璇1, 李润杰2, 崔子龙2,3, 辛继林1,2, 林成清1,2, 孔小云1,2, 党怡乐1,2, 马占明1,2, 张铭洋4,5, 张永坤2   

  1. 1. 青海大学农牧学院, 青海 西宁 810016;
    2. 青海大学省部共建三江源生态与高原农牧业国家重点实验室, 青海 西宁 810016;
    3. 青海大学生态环境工程学院, 青海 西宁 810016;
    4. 中国科学院西北高原生物研究所 高原生物适应与进化重点实验室, 青海 西宁 810008;
    5. 中国科学院大学, 北京 100049;
    6. null
  • 收稿日期:2025-01-02 修回日期:2025-07-31 发布日期:2026-05-08
  • 通讯作者: 张永坤，E-mail:zhangyongkun321@163.com
  • 作者简介:杨晓璇（1999-），女，汉族，青海海东人，硕士研究生，主要从事土壤生态学研究，E-mail:24983391802@qq.com；
  • 基金资助:
    国家自然科学基金（4220072854）；青海省应用基础研究项目（2022-ZJ-716）共同资助

Study on the Variation Characteristics of Glomalin-Related Soil Protein and Soil Organic Carbon at Different Succession Stages of Alpine Meadow

YANG Xiao-xuan1, LI Run-jie2, CUI Zi-long2,3, XIN Ji-lin1,2, LIN Cheng-qing1,2, KONG Xiao-yun1,2, DANG Yi-le1,2, MA Zhan-ming1,2, ZHANG Ming-yang4,5, ZHANG Yong-kun2   

  1. 1. College of Agriculture and Animal Husbandry, Qinghai University, Xining, Qinghai Province 810016, China;
    2. State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining, Qinghai Province 810016, China;
    3. College of Ecological and Environmental Engineering, Qinghai University, Xining, Qinghai Province 810016, China;
    4. Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, Qinghai Province 810016, China;
    5. Key Laboratory of Plateau Adaptation and Evolution, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining Qinghai Province 810008, China;
    6. University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2025-01-02 Revised:2025-07-31 Published:2026-05-08

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摘要： 为揭示高寒草甸退化与恢复过程中球囊霉素相关土壤蛋白（Glomalin-related soil protein， GRSP）变化特征及其影响因素，本研究通过测定0~10 cm与10~20 cm土层土壤理化性质、土壤有机碳（Soil organic carbon， SOC）、土壤易提取球囊霉素相关土壤蛋白（E-GRSP）和总球囊霉素相关土壤蛋白（T-GRSP）的含量，并借助皮尔逊相关分析（Pearson）与冗余分析探讨其与驱动因子的关系。结果表明：在0~10 cm土层，SOC随草地退化显著降低（P<0.05），且人工修复方式对退化草地SOC的提升效果优于自然恢复方式。在0~10 cm土层E-GRSP和T-GRSP在退化与恢复过程中表现出先降低后升高的趋势（P<0.05），而E-GRSP/SOC和T-GRSP/SOC的变化规律与之相反。Pearson相关分析表明，在0~20 cm土层T-GRSP、E-GRSP与SOC呈极显著正相关（P<0.01）；冗余分析发现，在0~20 cm土层，SOC是对GRSP含量、GRSP/SOC比值解释度最高的因子。综合分析显示，草地恢复对高寒草甸土壤中球囊霉素相关土壤蛋白（GRSP）的维持具有促进作用，而GRSP含量升高促进SOC积累，表明其在土壤碳固持及碳库维系中起关键作用。本研究对揭示草地生态系统碳固持机制、提升土壤结构稳定性、评估土壤质量及指导草地生态修复具有重要意义。

关键词: 球囊霉素相关土壤蛋白, 有机碳, 青藏高原, 高寒草地, 草地恢复

Abstract: To elucidate the variation patterns of glomalin-related soil protein （GRSP） and their underlying drivers during the degradation and restoration of alpine meadows， this study quantified key soil physicochemical properties， soil organic carbon （SOC）， easily extractable GRSP （E-GRSP）， and total GRSP （T-GRSP） in both the 0-10 cm and 10-20 cm soil layers. The relationships between these variables and potential driving factors were analyzed using Pearson correlation analysis and redundancy analysis. Results showed that in the 0-10 cm layer， SOC decreased significantly with grassland degradation （P<0.05）， and artificial restoration was more effective than natural regeneration in enhancing SOC levels. Both E-GRSP and T-GRSP in the 0-10 cm layer exhibited an initial decline followed by a subsequent increase during the processes of degradation and recovery （P<0.05）， whereas the ratios of E-GRSP/SOC and T-GRSP/SOC displayed an opposite trend. Pearson correlation analysis revealed a highly significant positive correlation （P<0.01） between T-GRSP， E-GRSP， and SOC across the 0-20 cm soil profile. Redundancy analysis indicated that SOC was the primary explanatory variable for variations in both GRSP content and GRSP/SOC ratios throughout the 0-20 cm soil depth. Collectively， these findings suggest that grassland restoration promotes the preservation of GRSP in alpine meadow soils， and increased GRSP content contributes to enhanced SOC accumulation， highlighting its crucial role in soil carbon sequestration and the stability of soil carbon pools. This study provides valuable insights into carbon sequestration mechanisms in grassland ecosystems， supports improvements in soil structure stability， facilitates soil quality assessment， and offers practical guidance for ecological restoration efforts.

Key words: Glomalin-related soil protein, Soil organic carbon, Qinghai-Tibet Plateau, Alpine grassland, Grassland restoration

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