Distinguishing Stoichiometric Homeostasis of Soil Microbial Biomass in Alpine Grassland Ecosystems: Evidence From 5,000 km Belt Transect Across Qinghai-Tibet Plateau
文献类型：期刊论文
| 作者 | Fan, Jihui2; Liu, Tianyuan1,3; Liao, Ying2,3; Li, Yiying2,3; Yan, Yan2; Lu, Xuyang2 |
| 刊名 | FRONTIERS IN PLANT SCIENCE
 |
| 出版日期 | 2021-12-02 |
| 卷号 | 12页码:12 |
| ISSN号 | 1664-462X |
| 关键词 | Qinghai-Tibet Plateau (QTP) alpine grassland soil microbe stoichiometric homeostasis trade-off |
| DOI | 10.3389/fpls.2021.781695 |
| 通讯作者 | Yan, Yan(yy@imde.ac.cn) |
| 英文摘要 | The biogeographic characteristics of soil microbial biomass stoichiometry homeostasis and also its mechanisms are commonly thought to be key factors for the survival strategies and resource utilization of soil microbes under extreme habitat. In this work, we conducted a 5,000-km transect filed survey in alpine grassland across Qinghai-Tibet Plateau in 2015 to measure soil microbial biomass carbon (MBC) and nitrogen (MBN) across alpine steppe and meadow. Based on the differences of climate and soil conditions between alpine steppe and meadow, the variation coefficient was calculated to investigate the homeostatic degree of MBC to MBN. Furthermore, the "trade-off" model was utilized to deeply distinguish the homeostasis degree of MBC/MBN between alpine steppe and meadow, and the regression analysis was used to explore the variability of trade-off in response to environmental factors in the alpine grassland. The results showed that the coefficient of variation (CV) of MBC/MBN in alpine meadow (CV = 0.4) was lower than alpine steppe (CV = 0.7). According to the trade-off model, microbial turnover activity of soil N relative to soil C increased rapidly and then decreased slightly with soil organic carbon (SOC), soil total nitrogen (STN), and soil water content across alpine meadow. Nevertheless, in alpine steppe, SOC/STN had a positive effect on microbial turnover of soil N. These results suggested that water, heat, and soil nutrients availability were the key factors affecting the C:N stoichiometry homeostasis of soil microbial biomass in Qinghai-Tibet Plateau (QTP)'s alpine grassland. Since the difference of survival strategy of the trade-off demands between soil C and N resulting in different patterns and mechanism, the stoichiometry homeostasis of soil microbial biomass was more stable in alpine meadow than in alpine steppe. |
| WOS关键词 | FUMIGATION-EXTRACTION METHOD ; N-P STOICHIOMETRY ; PHOSPHORUS STOICHIOMETRY ; LEAF NITROGEN ; BIOLOGICAL STOICHIOMETRY ; ECOLOGICAL STOICHIOMETRY ; CARBON ; COMMUNITY ; AVAILABILITY ; DEGRADATION |
| 资助项目 | National Natural Science Foundation of China[41871072] ; National Natural Science Foundation of China[1871040] ; National Natural Science Foundation of China[41877338] |
| WOS研究方向 | Plant Sciences |
| 语种 | 英语 |
| 出版者 | FRONTIERS MEDIA SA |
| WOS记录号 | WOS:000730870400001 |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/168625]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Yan, Yan |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Ecosyst Network Observat & Modelling, Synth Res Ctr Chinese Ecosyst Res Network, Inst Geog Sci & Nat Resources Res, Beijing, Peoples R China 2.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu, Peoples R China 3.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Fan, Jihui,Liu, Tianyuan,Liao, Ying,et al. Distinguishing Stoichiometric Homeostasis of Soil Microbial Biomass in Alpine Grassland Ecosystems: Evidence From 5,000 km Belt Transect Across Qinghai-Tibet Plateau[J]. FRONTIERS IN PLANT SCIENCE,2021,12:12. |
| APA | Fan, Jihui,Liu, Tianyuan,Liao, Ying,Li, Yiying,Yan, Yan,&Lu, Xuyang.(2021).Distinguishing Stoichiometric Homeostasis of Soil Microbial Biomass in Alpine Grassland Ecosystems: Evidence From 5,000 km Belt Transect Across Qinghai-Tibet Plateau.FRONTIERS IN PLANT SCIENCE,12,12. |
| MLA | Fan, Jihui,et al."Distinguishing Stoichiometric Homeostasis of Soil Microbial Biomass in Alpine Grassland Ecosystems: Evidence From 5,000 km Belt Transect Across Qinghai-Tibet Plateau".FRONTIERS IN PLANT SCIENCE 12(2021):12. |
入库方式： OAI收割
来源：地理科学与资源研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。