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Reduced soil multifunctionality and microbial network complexity in degraded and revegetated alpine meadows

文献类型：期刊论文

作者Wu, Bobo5; Ding, Mingjun5; Zhang, Hua1,5; Devlin, Adam Thomas5; Wang, Peng5; Chen, Lu5; Zhang, Yueju5; Xia, Yang5; Wen, Jiawei5; Liu, Linshan3,4
刊名JOURNAL OF ENVIRONMENTAL MANAGEMENT
出版日期2023-10-01
卷号343页码:12
ISSN号0301-4797
关键词Ecological restoration Grassland patches Microbial community assembly Nutrient availability Soil structure The Qinghai-Tibetan plateau
DOI10.1016/j.jenvman.2023.118182
通讯作者Zhang, Hua(zhangh2013@jxnu.edu.cn) ; Wang, Minhuang(wangmh59@mail.sysu.edu.cn)
英文摘要Understanding how microbial processes develop and change in alpine meadow soils is key to global initiatives toward environmental sustainability and local land management. Yet, how microbial interactions mediate soil multifunctionality in disturbed and managed alpine meadows remains understudied. Here, we investigated multiple community metrics, particularly microbial network properties and assembly processes, of soil bacterial and fungal communities and their links to certain soil functions along a degradation-restoration sequence of alpine meadows in the Qinghai-Tibetan Plateau. Meadow degradation caused significant declines in soil hy-draulic conductivity (e.g., higher bulk density, reduced soil porosity and water content) and nitrogen availability, leading to lowered soil multifunctionality. Meadow degradation only caused weak changes in microbial abun-dance, alpha diversity, and community composition, but remarkably reduced bacterial network complexity, to a less extent for fungal network properties. Short-term artificial restoration with productive grass monocultures did not restore soil multifunctionality, in turn even destabilized bacterial network and favored pathogenic over mutualistic fungi. Soil fungi community are more stable than bacteria in disturbed alpine meadows, and they evolved with distinct assembly strategies (stochastic-dominant versus deterministic-driven processes, respec-tively). Further, microbial network complexity, positively and better predicts soil multifunctionality than alpha diversity. Our work shows how microbial interaction complexity may enhance soil multifunctionality in degraded alpine meadow ecosystems, noting that meadow restoration with low plant species diversity may failed in restoring multiple ecosystem functions. These findings would help predict the outcomes of global environ-mental changes and inform management strategies in regional grassland conservation and restoration.
WOS关键词QINGHAI-TIBETAN PLATEAU ; ASSEMBLY PROCESSES ; FUNGAL COMMUNITY ; BULK SOIL ; RHIZOSPHERE ; ECOSYSTEM ; MECHANISMS ; DIVERSITY ; COMPETITION ; HYPOTHESIS
资助项目Second Tibetan Plateau Scientific Expedition and Research[2019QZKK0603] ; National Natu- ral Science Foundation of China[42061018] ; National Natu- ral Science Foundation of China[32001118]
WOS研究方向Environmental Sciences & Ecology
语种英语
出版者ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
WOS记录号WOS:001005458500001
资助机构Second Tibetan Plateau Scientific Expedition and Research ; National Natu- ral Science Foundation of China
源URL[http://ir.igsnrr.ac.cn/handle/311030/194765]  
专题中国科学院地理科学与资源研究所
通讯作者Zhang, Hua; Wang, Minhuang
作者单位1.Off Heyuan Municipal Peoples Govt, Heyuan, Guangdong, Peoples R China
2.Sun Yat Sen Univ, Sch Life Sci, Guangzhou 510275, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China
5.Jiangxi Normal Univ, Sch Geog & Environm, Key Lab Poyang Lake Wetland & Watershed Res, Minist Educ, Nanchang 330022, Peoples R China
推荐引用方式
GB/T 7714		 Wu, Bobo,Ding, Mingjun,Zhang, Hua,et al. Reduced soil multifunctionality and microbial network complexity in degraded and revegetated alpine meadows[J]. JOURNAL OF ENVIRONMENTAL MANAGEMENT,2023,343:12.
APA Wu, Bobo.,Ding, Mingjun.,Zhang, Hua.,Devlin, Adam Thomas.,Wang, Peng.,...&Wang, Minhuang.(2023).Reduced soil multifunctionality and microbial network complexity in degraded and revegetated alpine meadows.JOURNAL OF ENVIRONMENTAL MANAGEMENT,343,12.
MLA Wu, Bobo,et al."Reduced soil multifunctionality and microbial network complexity in degraded and revegetated alpine meadows".JOURNAL OF ENVIRONMENTAL MANAGEMENT 343(2023):12.

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来源：地理科学与资源研究所

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