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首页> 外文期刊>Agriculture, Ecosystems & Environment: An International Journal for Scientific Research on the Relationship of Agriculture and Food Production to the Biosphere >Resilience of revegetated grassland for restoring severely degraded alpine meadows is driven by plant and soil quality along recovery time: A case study from the Three-river Headwater Area of Qinghai-Tibetan Plateau
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Resilience of revegetated grassland for restoring severely degraded alpine meadows is driven by plant and soil quality along recovery time: A case study from the Three-river Headwater Area of Qinghai-Tibetan Plateau

机译：用于恢复严重降级的高山草甸的恢复草地的复原力由植物和土壤质量沿恢复时间驱动：青藏高原三河下游地区的案例研究

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摘要

Resilience is crucial to promote the ecosystem sustainability and maintain ecosystem functions and services. Clarifying the variation regularity of the resilience can provide a theory foundation for the restoration and management of degraded ecosystems. Grassland cultivation has been largely used to restore extensively distributed "Black Beach", the severely degraded alpine meadow on the Qinghai-Tibetan Plateau (QTP). However, few researchers have documented the resilience of the revegetated grasslands along the succession gradients. In this study, we surveyed the revegetated grasslands on the QTP at different restoration times: 4-year, 6-year, 9-year, 12-year, 13-year, 14-year, 16-year, 18-year by using chronosequence approach to identify the resilience of the revegetated grasslands from the perspectives of plant and soil quality. We treated "Black Beach" as the baseline for restoration, and non-degraded healthy alpine meadow as the target for the restoration. We used the MDS method to identify the appropriate indicators and created an integrated assessment system that quantified the resilience of plant, soil, plant-soil system of the revegetated grasslands at different recovery years. The results showed that the non-linear resilience of revegetated grasslands were identified for the plant, soil and plant-soil systems along the temporal gradients. The plant resilience of the revegetated grasslands peaked at the 12th recovery year. The soil of the revegetated grasslands was superior to severely degraded grasslands after 13 years of revegetation. Asynchrony existed between the resilience of soil and that of the plant along the temporal gradients. The plant-soil system resilience of the revegetated grasslands peaked at the 16th recovery year. From the perspectives of plant, soil, plant-soil system, the recovery time of severely degraded grassland should be at least 16-18 years to reach a relative stable state. Revegetated grassland can be used as an effective restoration approach to improve the quality and resilience of plant and soil in the severely degraded alpine meadow on the QTP.
机译：促进促进生态系统可持续性并维持生态系统功能和服务至关重要。澄清弹性的变化规律可以为退化生态系统的恢复和管理提供理论基础。草原培养主要用于恢复广泛分布的“黑海滩”，这是青藏高原（QTP）的严重降级的高山草地。然而，很少有研究人员沿着继任梯度记录了恢复草原的恢复力。在这项研究中，我们在不同恢复时间的QTP上调查了QTP的重新定位草原：4年，6年，9年，12年，13年，14年，16年，18年，通过从植物和土壤质量的角度识别重新入门草原的复原力的逐步探测方法。我们将“黑海滩”视为恢复的基线，并非降级健康的高山草甸作为恢复的目标。我们使用MDS方法来识别适当的指标，并创建了一项综合评估系统，这些系统量化了植物，土壤，植物 - 土壤系统在不同恢复年度的植物，土壤，植物 - 土壤系统的恢复力。结果表明，沿着时间梯度的植物，土壤和植物 - 土壤系统鉴定了植物，土壤和植物土体系的非线性弹性。在第12届恢复年度，植物的植物复原力达到峰值。在13年的再训练后，再凝固草原的土壤优于严重降级的草原。沿着时间梯度的土壤和植物的韧性之间存在异步。在第16届恢复年度，植物 - 土壤系统的复原力达到峰值。从植物，土壤，植物 - 土壤系统的角度来看，严重退化的草原的恢复时间应至少16-18岁才能达到相对稳定的状态。再凝固的草原可作为一种有效的恢复方法，以提高QTP上严重降解的高山草甸植物和土壤的质量和恢复力。

著录项

  • 来源
  • 作者

    Gao Xiaoxia; Dong Shikui; Xu Yudan; Wu Shengnan; Wu Xiaohui; Zhang Xi; Zhi Yangliu; Li Shuai; Liu Shiliang; Li Yu; Shang Zhanhuan; Dong Quanmin; Zhou Huakun; Stufkens Paul;

  • 作者单位

    Beijing Normal Univ Sch Environm State Key Lab Water Environm Simulat Beijing 100875 Peoples R China;

    Beijing Normal Univ Sch Environm State Key Lab Water Environm Simulat Beijing 100875 Peoples R China;

    Beijing Normal Univ Sch Environm State Key Lab Water Environm Simulat Beijing 100875 Peoples R China;

    Beijing Normal Univ Sch Environm State Key Lab Water Environm Simulat Beijing 100875 Peoples R China;

    Beijing Normal Univ Sch Environm State Key Lab Water Environm Simulat Beijing 100875 Peoples R China;

    Beijing Normal Univ Sch Environm State Key Lab Water Environm Simulat Beijing 100875 Peoples R China;

    Beijing Normal Univ Sch Environm State Key Lab Water Environm Simulat Beijing 100875 Peoples R China;

    Beijing Normal Univ Sch Environm State Key Lab Water Environm Simulat Beijing 100875 Peoples R China;

    Beijing Normal Univ Sch Environm State Key Lab Water Environm Simulat Beijing 100875 Peoples R China;

    Beijing Normal Univ Sch Environm State Key Lab Water Environm Simulat Beijing 100875 Peoples R China;

    Lanzhou Univ Sch Life Sci Sate Key Lab Grassland Agoecosyst Lanzhou 730000 Gansu Peoples R China;

    Qinghai Univ Qinghai Acad Anim &

    Vet Sci Xining 810016 Qinghai Peoples R China;

    Chinese Acad Sci Northwest Inst Plateau Biol Key Lab Restorat Ecol Cold Area Qinghai Prov Xining 810008 Qinghai Peoples R China;

    Zamorano Univ Francisco Morazan 93 Valle Del Yeguare Honduras;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 农业科学;
  • 关键词

    Resilience; Revegetation; Plant quality; Soil quality; Recovery time; MDS;

    机译：弹性;植物;植物质量;土壤质量;恢复时间;MDS;

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