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Shifting biomass allocation and light limitation co-regulate the temporal stability of an alpine meadow under eutrophication

文献类型：期刊论文

作者Guo, Hongbo5,6; Quan, Quan6; Niu, Shuli4,6; Li, Tingting6; He, Yicheng3,6; Fu, Yiwen2,6; Li, Jiapu6; Wang, Jinsong6; Zhang, Ruiyang6; Li, Zhaolei1
刊名SCIENCE OF THE TOTAL ENVIRONMENT
出版日期2023-02-20
卷号860页码:9
关键词Nutrient enrichment Plant community stability Plant species diversity Plant species asynchrony Plant biomass allocation Light limitation
ISSN号0048-9697
DOI10.1016/j.scitotenv.2022.160411
通讯作者Tian, Dashuan(tiands@igsnrr.ac.cn)
英文摘要Eutrophication generally promotes but destabilizes grassland productivity. Under eutrophication, plants tend to de-crease biomass allocation to roots but increase aboveground allocation and light limitation, likely affecting community stability. However, it remains unclear to understand how shifting plant biomass allocation and light limitation regulate grassland stability in response to eutrophication. Here, using a 5-yr multiple nutrient addition experiment in an alpine meadow, we explored the role of changes in plant biomass allocation and light limitation on its community stability under eutrophication as well as traditionally established mechanisms (i.e., plant Shannon diversity, species asyn-chrony and grass subcommunity stability). Our results showed that nitrogen (N) addition, rather than phosphorus (P) or potassium (K) addition, significantly reduced the temporal stability of the alpine meadow. In accordance with previous studies, we found that N addition decreased plant Shannon diversity, species asynchrony and grass subcom-munity stability, further destabilizing meadow community productivity. In addition, we also found the decrease in bio-mass allocation to belowground by N addition, further weakening its community stability. Moreover, this shifts in plant biomass allocation from below-to aboveground, intensifying plant light limitation. Further, the light limitation reduced plant species asynchrony, which finally weakened its community stability. Overall, in addition to traditionally established mechanisms, this study highlights the role of plant biomass allocation shifting from belowground to above-ground in determining grassland community stability. These "unseen" mechanisms might improve our understanding of grassland stability in the context of ongoing eutrophication.
WOS关键词PLANT FUNCTIONAL TRAITS ; ECOSYSTEM STABILITY ; NITROGEN ENRICHMENT ; DIVERSITY ; BIODIVERSITY ; PRODUCTIVITY ; DISTURBANCE ; COMPETITION ; MECHANISMS ; REDUCTION
资助项目Strategic Priority Research Program of the Chinese Academy of Sciences[XDA23080302] ; Natural Sci-ence Foundation of China[32271636] ; National Key R&D Program of China[2017YFA0604802] ; National Key R&D Program of China[2020RC003] ; Youth Innovation Promotion Association[2021050]
WOS研究方向Environmental Sciences & Ecology
语种英语
WOS记录号WOS:000919504300001
出版者ELSEVIER
资助机构Strategic Priority Research Program of the Chinese Academy of Sciences ; Natural Sci-ence Foundation of China ; National Key R&D Program of China ; Youth Innovation Promotion Association
源URL[http://ir.igsnrr.ac.cn/handle/311030/189212]  
专题中国科学院地理科学与资源研究所
通讯作者Tian, Dashuan
作者单位1.Southwest Univ, Acad Agr Sci, Coll Resources & Environm, Chongqing 400715, Peoples R China
2.Suzhou Univ, Coll Environm Mapping & Engn, Suzhou 234000, Anhui, Peoples R China
3.China Agr Univ, Coll Grassland Sci & Technol, Beijing 100193, Peoples R China
4.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China
5.Beijing Normal Univ, Fac Geog Sci, Sch Nat Resources, Beijing 100875, Peoples R China
6.Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, CAS, Beijing 100101, Peoples R China
推荐引用方式
GB/T 7714		 Guo, Hongbo,Quan, Quan,Niu, Shuli,et al. Shifting biomass allocation and light limitation co-regulate the temporal stability of an alpine meadow under eutrophication[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2023,860:9.
APA Guo, Hongbo.,Quan, Quan.,Niu, Shuli.,Li, Tingting.,He, Yicheng.,...&Tian, Dashuan.(2023).Shifting biomass allocation and light limitation co-regulate the temporal stability of an alpine meadow under eutrophication.SCIENCE OF THE TOTAL ENVIRONMENT,860,9.
MLA Guo, Hongbo,et al."Shifting biomass allocation and light limitation co-regulate the temporal stability of an alpine meadow under eutrophication".SCIENCE OF THE TOTAL ENVIRONMENT 860(2023):9.

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来源：地理科学与资源研究所

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