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Nitrogen enrichment alters climate sensitivity of biodiversity and productivity differentially and reverses the relationship between them in an alpine meadow

文献类型：期刊论文

作者Peng, Jinlong3,4; Ma, Fangfang3,4; Quan, Quan3,4; Chen, Xinli1; Wang, Jinsong3; Yan, Yingjie3,4; Zhou, Qingping2; Niu, Shuli3,4
刊名SCIENCE OF THE TOTAL ENVIRONMENT
出版日期2022-08-20
卷号835页码:8
ISSN号0048-9697
关键词Biodiversity Productivity Nitrogen deposition Climate change Temporal scale Alpine meadow
DOI10.1016/j.scitotenv.2022.155418
通讯作者Niu, Shuli(sniu@igsnrr.ac.cn)
英文摘要Biodiversity and productivity that highly determine ecosystem services are varying largely under global change. However, the climate sensitivity of them and their relationship are not well understood, especially in the context of increasing nitrogen (N) deposition. Here, based on a six-year N manipulation experiment in an alpine meadow, we quantified inter annual climate sensitivity of species richness (SR) and above-ground net primary productivity (ANPP) as well as SR-ANPP relationship as affected by six N addition rate (N-rate) gradients. We found that interannual variations in ANPP and SR were mainly driven by temperature instead of precipitation. In the plots without N addition, higher temperature substantially increased ANPP but reduced SR across years, thus resulting in a negative SR-ANPP relationship. However, the negative and positive responses of SR and ANPP to temperature increased and declined significantly with increasing N-rate, respectively, leading to a shift of the negative relationship between SR and ANPP into a positive one under high N-rate.Moreover, the adverse influence of drought on SR and ANPP would be aggravated by N fertilization, as indicated by the increased positive effect of precipitation on them under N enrichment. Our findings indicate that climate sensitivity of productivity and biodiversity may be misestimated if the impact of N deposition is not considered, and the importance of biodiversity to maintain productivity would enhance as N deposition increases. This study provides a new insight to explain variation of biodiversity-productivity relationship along with environmental changes.
WOS关键词PLANT BIODIVERSITY ; SPECIES RICHNESS ; TIBETAN PLATEAU ; ELEVATED CO2 ; DEPOSITION ; DIVERSITY ; PHOTOSYNTHESIS ; ACCLIMATION ; RESPONSES ; PATTERNS
资助项目National Natural Science Foundation of China[31988102] ; Second Tibetan Plateau Scientific Expedition and Research (STEP) program[2019QZKK0302]
WOS研究方向Environmental Sciences & Ecology
语种英语
出版者ELSEVIER
WOS记录号WOS:000796616500012
资助机构National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research (STEP) program
源URL[http://ir.igsnrr.ac.cn/handle/311030/177312]  
专题中国科学院地理科学与资源研究所
通讯作者Niu, Shuli
作者单位1.Lakehead Univ, Fac Nat Resources Management, Thunder Bay, ON, Canada
2.Southwest Univ Nationalities, Inst Qinghai Tibetan Plateau, Chengdu 610041, Peoples R China
3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, 11A,Datun Rd, Beijing 100101, Peoples R China
4.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Peng, Jinlong,Ma, Fangfang,Quan, Quan,et al. Nitrogen enrichment alters climate sensitivity of biodiversity and productivity differentially and reverses the relationship between them in an alpine meadow[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2022,835:8.
APA Peng, Jinlong.,Ma, Fangfang.,Quan, Quan.,Chen, Xinli.,Wang, Jinsong.,...&Niu, Shuli.(2022).Nitrogen enrichment alters climate sensitivity of biodiversity and productivity differentially and reverses the relationship between them in an alpine meadow.SCIENCE OF THE TOTAL ENVIRONMENT,835,8.
MLA Peng, Jinlong,et al."Nitrogen enrichment alters climate sensitivity of biodiversity and productivity differentially and reverses the relationship between them in an alpine meadow".SCIENCE OF THE TOTAL ENVIRONMENT 835(2022):8.

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来源：地理科学与资源研究所

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