Effects of Different Restoration Measures on Degraded Alpine Grasslands of the Tibetan Plateau: A meta-analysis

doi:10.11733/j.issn.1007-0435.2021.Z1.022

Acta Agrestia Sinica ›› 2021, Vol. 29 ›› Issue (S1): 190-198.DOI: 10.11733/j.issn.1007-0435.2021.Z1.022

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Effects of Different Restoration Measures on Degraded Alpine Grasslands of the Tibetan Plateau: A meta-analysis

YAN He-piao^1,2, LI Wen-long^1,2, LIANG Tian-gang^1,2, ZHOU Hua-kun³, CAO Ya-peng¹, LIAO Yuan-cheng¹

1. State Key Laboratory of Grassland Agro-ecosystems, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, Gansu Province 730000, China;
2. Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural Affairs, Lanzhou University; Engineering Research Center of Grassland Industry, Ministry of Education, Lanzhou University, Lanzhou, Gansu Province 730000, China;
3. Northwest Plateau Institute of Biology, Chinese Academy of Sciences, Xining, Qinghai Province 810001, China

Received:2021-04-08 Revised:2021-05-24 Online:2021-10-30 Published:2021-11-17

青藏高原退化高寒草地恢复对不同措施响应的Meta分析

晏和飘^1,2, 李文龙^1,2, 梁天刚^1,2, 周华坤³, 曹亚鹏¹, 廖元成¹

1. 草地农业生态系统国家重点实验室, 兰州大学草地农业科技学院, 甘肃兰州 730000;
2. 兰州大学农业农村部草牧业创新重点实验室, 兰州大学草地农业教育部工程研究中心, 甘肃兰州 730000;
3. 中国科学院西北高原生物研究所, 青海西宁 810008

通讯作者: 李文龙,E-mail:wllee@lzu.edu.cn
作者简介:晏和飘(1996-),男,贵州盘县人,硕士研究生,主要从事草地生态遥感研究,E-mail:yanhp19@lzu.edu.cn
基金资助:
国家重点研发计划项目（2018YFC0406602）；国家自然科学基金项目（41471450）；现代农业产业技术体系建设专项资金（CARS-34）；中央高校基本科研业务专项资金（lzujbky-2019-it03）；中科院西北高原生物研究所青海省寒区恢复生态学重点实验室开放课题（2020-KF-09）；三江源国家公园生态系统承载力评估与区域民保障模式研究（LHZX-2020-08）共同资助

Abstract

Abstract: To quantitatively evaluate the effects of different restoration measures applied on alpine grasslands with different degrees of degradation, a meta analysis was performed using 2, 478 sets of data from 92 papers published on Chinese or international journals. The main findings were as follows:In un-degraded alpine grasslands, natural restoration measures can significantly improve plant productivity and plant diversity without decreasing soil quality;In mildly degraded alpine grasslands, both natural and intervening restoration significantly improve vegetation primary productivity and soil quality, but intervening restoration decreases plant diversity while the former turns out to be the opposite. Therefore, it is more suitable to restore mildly degraded alpine grasslands naturally by using enclosure;In moderately degraded grasslands, intervening restoration is more effective than natural restoration. The specific measures are more effective with short-term fertilization and short-term and medium-term reseeding for restoration;In severely degraded alpine grassland, artificial grassland is the most effective measure, but it takes a long time to restore plant diversity and soil quality.

Key words: Degraded alpine grassland, Restoration measures, Plant productivity, Plant diversity, Soil quality, Meta-analysis

摘要： 为定量评估不同退化程度高寒草地的植物生产力、植物多样性与土壤质量对不同恢复措施的综合响应，本研究基于92篇文献，通过荟萃分析（Meta分析），对2 478组恢复实验数据进行综合分析。结果表明：在未退化草地上，自然恢复显著提高植被生产力和植物多样性，且不会使土壤质量下降；在轻度退化草地上，自然和人工辅助恢复均显著提高植被生产力和土壤质量；但人工辅助恢复显著降低植物多样性，而自然恢复则相反。具体措施以中期围栏封育恢复效果最好；在中度退化草地上，人工辅助恢复比自然恢复效果好。具体措施以短期施肥以及短期和中期补播恢复效果较好；在重度退化草地上，人工建植效果最好，但人工建植恢复植物多样性以及土壤质量所需年限较长。

关键词: 退化高寒草地, 恢复措施, 植物生产力, 植物多样性, 土壤质量, Meta分析

CLC Number:

S283

YAN He-piao, LI Wen-long, LIANG Tian-gang, ZHOU Hua-kun, CAO Ya-peng, LIAO Yuan-cheng. Effects of Different Restoration Measures on Degraded Alpine Grasslands of the Tibetan Plateau: A meta-analysis[J]. Acta Agrestia Sinica, 2021, 29(S1): 190-198.

晏和飘, 李文龙, 梁天刚, 周华坤, 曹亚鹏, 廖元成. 青藏高原退化高寒草地恢复对不同措施响应的Meta分析[J]. 草地学报, 2021, 29(S1): 190-198.

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Effects of Different Restoration Measures on Degraded Alpine Grasslands of the Tibetan Plateau: A meta-analysis

青藏高原退化高寒草地恢复对不同措施响应的Meta分析

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