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229 results on '"Qiu, Shaojun"'

16. Warming-induced shifts in alpine soil microbiome: An ecosystem-scale study with environmental context-dependent insights

Author

Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Ministerio de Ciencia e Innovación (España), Agencia Estatal de Investigación (España), European Commission, Delgado-Baquerizo, Manuel [0000-0002-6499-576X], Bing, Haijian [0000-0002-9813-6939], Wang, Jianjun [0000-0001-7039-7136], Chen, Ji [0000-0001-7026-6312], Fang, Linchuan [0000-0003-1923-7908], Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72], Liu, Ye, Delgado-Baquerizo, Manuel, Bing, Haijian, Wang, Yuhan, Wang, Jianjun, Chen, Ji, Qiu, Shaojun, Zhu, He, Wu, Yanhong, Fang, Linchuan, Chang, Ruiying, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Ministerio de Ciencia e Innovación (España), Agencia Estatal de Investigación (España), European Commission, Delgado-Baquerizo, Manuel [0000-0002-6499-576X], Bing, Haijian [0000-0002-9813-6939], Wang, Jianjun [0000-0001-7039-7136], Chen, Ji [0000-0001-7026-6312], Fang, Linchuan [0000-0003-1923-7908], Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72], Liu, Ye, Delgado-Baquerizo, Manuel, Bing, Haijian, Wang, Yuhan, Wang, Jianjun, Chen, Ji, Qiu, Shaojun, Zhu, He, Wu, Yanhong, Fang, Linchuan, and Chang, Ruiying

Abstract

Climate warming is a pressing global issue with substantial impacts on soil health and function. However, the influence of environmental context on the responses of soil microorganisms to warming remains largely elusive, particularly in alpine ecosystems. This study examined the responses of the soil microbiome to in situ experimental warming across three elevations (3850 m, 4100 m, and 4250 m) in the meadow of Gongga Mountain, eastern Tibetan Plateau. Our findings demonstrate that soil microbial diversity is highly resilient to warming, with significant impacts observed only at specific elevations. Furthermore, the influence of warming on the composition of the soil microbial community is also elevation-dependent, underscoring the importance of local environmental context in shaping microbial evolution in alpine soils under climate warming. Notably, we identified soil moisture at 3850 m and carbon-to-nitrogen ratio at 4250 m as indirect predictors regulating the responses of microbial diversity to warming at specific elevations. These findings underscore the paramount importance of considering pre-existing environmental conditions in predicting the response of alpine soil microbiomes to climate warming. Our study provides novel insights into the intricate interactions between climate warming, soil microbiome, and environmental context in alpine ecosystems, illuminating the complex mechanisms governing soil microbial ecology in these fragile and sensitive environments.

Published
2024

18. An Efficient Resource Allocation Algorithm for LTE Uplink VMIMO Systems

Author

Cai, Yang, Qiu, Shaojun, Cai, Jia, Cheng, Wenchi, Lu, Xiaofeng, Akan, Ozgur, Editorial Board Member, Bellavista, Paolo, Editorial Board Member, Cao, Jiannong, Editorial Board Member, Coulson, Geoffrey, Editorial Board Member, Dressler, Falko, Editorial Board Member, Ferrari, Domenico, Editorial Board Member, Gerla, Mario, Editorial Board Member, Kobayashi, Hisashi, Editorial Board Member, Palazzo, Sergio, Editorial Board Member, Sahni, Sartaj, Editorial Board Member, Shen, Xuemin (Sherman), Editorial Board Member, Stan, Mircea, Editorial Board Member, Xiaohua, Jia, Editorial Board Member, Zomaya, Albert Y., Editorial Board Member, Han, Shuai, editor, Ye, Liang, editor, and Meng, Weixiao, editor

Published
2019
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21. Role of added carbon in the transformation of surplus soil nitrate-nitrogen to organic forms in an intensively managed calcareous soil

Author

Qiu, Shaojun, Ju, Xiaotang, Ingwersen, Joachim, Guo, Zide, Stange, Claus Florian, Bisharat, Riyad, Streck, Thilo, Christie, Peter, and Zhang, Fusuo

Subjects
Nutrient Management and the Sustainability of Agriculture in the Developing World, C source availability, greenhouse gases, soil organic N, soil surplus nitrate
Abstract

Excessive amounts of nitrate have accumulated in many soils on the North China Plain due to the large amounts of chemical N fertilizer used combined with low carbon inputs. The present study investigated the promotion of soil nitrate transformation to soil organic N by different carbon amendments. A laboratory incubation experiment using 15N tracer (K15NO3) was employed to elucidate the proportion of soil organic N derived from accumulated soil nitrate following amendment with glucose (G) or maize straw (S) at controlled soil temperature and moisture content. During the 56-d incubation period we determined the dynamics and isotopic abundance of mineral N (NO3- and NH4+) and soil organic N and greenhouse gas (N2O and CO2) emissions. Carbon amendment markedly stimulated transformation of nitrate to soil organic N. Mineralization of native soil organic N was also enhanced because soil organic N at the end of the incubation period was not significantly different from that in the control without added C. Glucose had a greater effect on nitrate-N immobilization (25.0 mg kg-1) than maize straw (9.4 mg kg-1) and glucose addition also led to highest greenhouse gas emissions. With glucose and straw amendment total N2O-N emissions were 1.01 and 0.03 mg kg-1, respectively. Similarly, glucose amendment lowered the concentration and abundance of NO3--N and increased that of NH4+-N more than maize straw. In agricultural practice straw amendment may be an effective strategy to deplete the excess NO3--N pool and restrict leaching, to promote nitrate-N immobilization and to decrease greenhouse gas emissions.

Published
2009

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