草地学报 ›› 2026, Vol. 34 ›› Issue (1): 191-202.DOI: 10.11733/j.issn.1007-0435.2026.01.019

• 研究论文 • 上一篇    

高寒草甸生态修复成效评估——植物群落与土壤特征对不同鼠害干扰的响应

袁颖1,2, 李希来1,2, 柴瑜1,2, 张静2, 伍希2, 周怡志1,2, 高佩1,2   

  1. 1. 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;
    2. 青海大学农牧学院, 青海 西宁 810016
  • 收稿日期:2025-02-17 修回日期:2025-04-07 发布日期:2025-12-24
  • 通讯作者: 李希来,E-mail:xilai-li@163.com;张静,E-mail:qhlxl2001@163.com
  • 作者简介:袁颖(2001-),女,汉族,青海西宁人,硕士研究生,主要从事退化草地生态修复的研究,E-mail:yying04111208@163.com;
  • 基金资助:
    国家自然科学联合基金项目(U23A20159,U21A20191);青海省科学技术厅项目(2023-QY-210)和高等学校学科创新引智计划(D18013)资助

Assessment of the Effectiveness of Alpine Meadow Ecological Restoration and the Responses of Plant Communities and Soil Characteristics to Different Rodent Disturbances

YUAN Ying1,2, LI Xi-lai1,2, CHAI Yu1,2, ZHANG Jing2, WU Xi2, ZHOU Yi-zhi1,2, GAO Pei1,2   

  1. 1. State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining, Qinghai Province 810016, China;
    2. College of Agriculture and Animal Husbandry, Qinghai University, Xining, Qinghai Province 810016, China
  • Received:2025-02-17 Revised:2025-04-07 Published:2025-12-24

摘要: 本研究以河南县高原鼠兔(Ochotona curzoniae,OC)干扰、高原鼢鼠(Eospalax fontanierii,EF)干扰及其共生干扰研究区(OC+EF)下退化高寒草甸3个生态修复区为研究对象,通过测定生态修复区植物群落物种多样性和土壤理化性质的变化,研究生态修复后高寒草甸植物群落特征和土壤理化性质对OC,EF以及OC+EF干扰的响应,评估不同啮齿动物干扰模式下生态修复的成效,为避免草地二次退化提供理论指导。结果表明:OC+EF的物种丰富度和物种多样性显著优于OC;EF的植被总盖度与植物平均高度均较高,OC,EF,OC+EF三种干扰研究区的植被总盖度分别为84.33%,97.33%,88.56%,植物群落平均高度分别为47.70,168.23,139.47 cm,EF的禾本科、豆科、莎草科及其他杂类草的地上生物量均高于OC与OC+EF,生态修复后EF牧草产量最高。EF的土壤有机碳(Soil organic carbon,SOC)含量显著高于其他干扰样地(P<0.05);OC,EF和OC+EF的土壤速效磷(Available phosphorus,A-P)含量分别为0.053,0.055和0.035 mg·g-1。综合植物群落特征和土壤理化性质各项指标,EF下生态修复成效最为显著,OC+EF次之,OC最差并容易出现二次退化。因此,OC下需要采取非传统生态修复措施,比如增加免耕补播中镇压强度和覆盖无纺布等措施,将有利于提高其生态修复的治理成效。

关键词: 修复成效评估, 高寒草甸, 生态修复, 鼠害干扰, 植物群落, 土壤养分

Abstract: This paper researched the effects of disturbances of plateau pika (Ochotona curzoniae, OC), plateau zokor (Eospalax fontanierii, EF), and the symbiotic interference of plateau pika and plateau zokor (OC+EF) on plant and soil properties in three ecologically restored areas of formerly degraded alpine meadow in Henan County. It investigated how alpine meadow plant community characteristics, as measured by the changes in plant community species diversity and soil physical and chemical properties in the ecologically restored areas, responded to the disturbances of OC, EF and OC+EF. It also evaluated the effectiveness of ecological restoration in different disturbance patterns of rodents, and provided theoretical guidance to avoid secondary degradation. The results show that species richness and species diversity in the OC+EF disturbed area are significantly higher than those in the OC disturbed area. Total vegetation coverage and average plant height in the EF disturbed area are relatively high. Total vegetation coverage in the three externally disturbed areas of OC, EF, and OC+EF is 84.33%, 97.33% and 88.56%, respectively. The height of plant communities averages 47.70 cm, 168.23 cm and 139.47 cm, respectively, in the three treatments. The aboveground biomass of Gramineae, Leguminosae, Cyperaceae, and other miscellaneous herbs in EF is higher than that in OC and OC+EF. After ecological restoration, the forage yield of EF is the highest. Its soil organic carbon content is significantly higher than that of the other two disturbed areas (P<0.05). The soil available phosphorus contents of OC, EF, and OC+EF are 0.053 mg·g-1, 0.055 mg·g-1 and 0.035 mg·g-1, respectively. Judging by the comprehensive indicators of plant community characteristics and soil physical and chemical properties studied, the ecological restoration effects in the EF disturbance is the most pronounced, followed by the OC+EF disturbance, while the effects under OC disturbance is the least tangible and likely attributable to secondary degradation. Therefore, if disturbed by OC only, it is necessary to adopt non-traditional ecological restoration measures, such as increasing soil compactness during no-tillage reseeding and covering the sowed soil with non-woven fabrics, both of which will be conducive to improving the effectiveness of ecological restoration.

Key words: Assessment of restoration effectiveness, Alpine meadow, Ecological restoration, Rodent disturbance, Plant community, Soil nutrients

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