Plant-microbe interactions regulate the aboveground community nitrogen accumulation rate in different environmental conditions on the Tibetan Plateau
文献类型：期刊论文
| 作者 | Zhou, Tiancai1,2,3; Sun, Jian2,3; Shi, Peili1,3
|
| 刊名 | CATENA
 |
| 出版日期 | 2021-09-01 |
| 卷号 | 204页码:8 |
| ISSN号 | 0341-8162 |
| 关键词 | Alpine ecosystem Environmental conditions Plant nitrogen Soil microbes Nitrogen accumulate rate Tibetan Plateau |
| DOI | 10.1016/j.catena.2021.105407 |
| 通讯作者 | Sun, Jian(sunjian@itpcas.ac.cn) ; Shi, Peili() |
| 英文摘要 | Experimental studies have well illustrated that plant and microbe interactions play an important role in the absorption of nitrogen (N) under different environmental conditions. However, it remains to be seen what role plant-microbe interactions play in regulating plant N accumulation rates (NAR) over broad climatic and geographic scales. Here, a transect survey was conducted in alpine grassland on the Tibetan Plateau to measure aboveground net primary production and plant N concentration corresponding with phenology indexes, the NAR patterns were measured by "changepoint" analysis. Meanwhile, matrix correlation analysis and variation partitioning analysis were performed to explore the dynamic of NAR in response to environment factors. Finally, structural equation model was employed to express the path coefficients of environmental factors on NAR. A significantly (P<0.05) lower NAR (8.9 mg/m(2)/day) in cold-dry climates than that in warm-wet climates (31.1 mg/m(2)/day) were detected. Our results further demonstrated a cooperative interaction between microbes and plants stimulated NAR in weakly resource-limited environments but a competitive effect of microbes on plants-constrained NAR in strongly resource-limited environments. The NAR was strongly governed by coupled water-heat availability and microbial biomass via their effects on plant diversity. Our findings highlighted that plant-microbe interactions offered an important framework to better understand the generalizable mechanisms of plant N accumulation in different environmental conditions. The knowledge of ecological N accumulation mechanisms obtained here not only emphasized the importance of incorporating plant phenology and dynamics of plant N into the ecological N cycle model but also promoted our understanding of resource utilization between plants and soil microbes under ongoing global climate change. |
| WOS关键词 | SOIL BACTERIAL ; ELEVATED CO2 ; RESPONSES ; CARBON ; WATER ; ECOSYSTEM ; DYNAMICS ; CLIMATE ; AVAILABILITY ; PRODUCTIVITY |
| 资助项目 | Second Tibetan Plateau Scientific Expedition and Research[2019QZKK0405] ; National Science Foundation of China[31870406] ; National Science Foundation of China[41871040] |
| WOS研究方向 | Geology ; Agriculture ; Water Resources |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:000657369600023 |
| 资助机构 | Second Tibetan Plateau Scientific Expedition and Research ; National Science Foundation of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/164044]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Sun, Jian; Shi, Peili |
| 作者单位 | 1.Chinese Acad Sci, Synth Res Ctr Chinese Ecosyst Res Network, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modelling, Beijing 100101, Peoples R China 2.Chinese Acad Sci, Inst Tibetan Plateau Res, State Key Lab Tibetan Plateau Earth Syst Sci LATP, Beijing 100101, Peoples R China 3.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhou, Tiancai,Sun, Jian,Shi, Peili. Plant-microbe interactions regulate the aboveground community nitrogen accumulation rate in different environmental conditions on the Tibetan Plateau[J]. CATENA,2021,204:8. |
| APA | Zhou, Tiancai,Sun, Jian,&Shi, Peili.(2021).Plant-microbe interactions regulate the aboveground community nitrogen accumulation rate in different environmental conditions on the Tibetan Plateau.CATENA,204,8. |
| MLA | Zhou, Tiancai,et al."Plant-microbe interactions regulate the aboveground community nitrogen accumulation rate in different environmental conditions on the Tibetan Plateau".CATENA 204(2021):8. |
入库方式： OAI收割
来源：地理科学与资源研究所
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