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The complexity of the bacterial community in response to fertilization determines forage production in a semiarid grassland | |
Chen, Xiang; Tian, Jianqing1; Liu, Shixian1,2; Wei, Zhijun; Wang, Yang1; Song, Xiangyang; Zhang, Xiaoyan3; Bai, Yongfei1 | |
2022 | |
发表期刊 | ECOLOGICAL INDICATORS |
ISSN | 1470-160X |
卷号 | 139 |
摘要 | The role of soil microbial diversity and interactions in controlling plant productivity after fertilization remains unknown in grassland systems. This knowledge gap hampers our understanding of how shifts in soil microbial diversity and interactions can modify soil functioning and grassland production under changing environments. In this study, we evaluated the influence of short-term field fertilization on soil microbial diversity, particularly the complexity of microbial ecological networks in controlling aboveground plant productivity under five nitrogen addition rates (0, 6, 12, 20, 32 g N m(-2) year(-1)). The N fertilization resulted in higher forage production. The bacterial and fungal alpha diversity and taxonomic composition were relatively stable across the N addition rates. Network analysis showed that the complexity of the bacterial network increased gradually with increasing N addition rates, peaking at 20 g N m(-2) year(-1), while modularity and |negative|: positive cohesion had contrasting patterns across the N addition rates. Additionally, the changes of bacterial interactions were predominantly driven by the keystone taxa richness and abundance. Compared with the bacterial co-occurrence network, the fungal co-occurrence network remained relatively stable. Strong positive linkages between plant production and the complexity of the bacterial network were also observed. Furthermore, the increment of forage production was highly related to the keystone taxa abundance. Together, our results highlighted that the complexity of the soil bacterial network plays a vital role in enhancing the connection between soil microbial diversity and plant production. Our findings exemplify a significant progress in projecting the effects of soil microbial diversity on ecosystem functions in grassland ecosystems. |
关键词 | Co-occurrence patterns Microbial network topology Nitrogen fertilizer Plant above ground productivity Stability |
学科领域 | Biodiversity Conservation ; Environmental Sciences |
DOI | 10.1016/j.ecolind.2022.108918 |
收录类别 | SCI |
语种 | 英语 |
WOS关键词 | SOIL MICROBIAL COMMUNITIES ; BELOW-GROUND COMMUNITIES ; NITROGEN ENRICHMENT ; DIVERSITY ; BIODIVERSITY ; THRESHOLDS ; NETWORKS ; FUNGI |
WOS研究方向 | Science Citation Index Expanded (SCI-EXPANDED) |
WOS记录号 | WOS:000913330600001 |
出版者 | ELSEVIER |
文献子类 | Article |
出版地 | AMSTERDAM |
EISSN | 1872-7034 |
资助机构 | Inner Mongolia Key Project [2021ZD0044-02] |
作者邮箱 | tianjq@ibcas.ac.cn ; nmndwzj@163.com |
作品OA属性 | gold |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ibcas.ac.cn/handle/2S10CLM1/28757 |
专题 | 植被与环境变化国家重点实验室 |
作者单位 | 1.Inner Mongolia Agr Univ, Coll Grassland Resources & Environm, Hohhot 010011, Peoples R China 2.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 3.Univ Chinese Acad Sci, Coll Life Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China 4.M Grass Ecol & Environm Grp Co Ltd, Hohhot 010000, Peoples R China |
推荐引用方式 GB/T 7714 | Chen, Xiang,Tian, Jianqing,Liu, Shixian,et al. The complexity of the bacterial community in response to fertilization determines forage production in a semiarid grassland[J]. ECOLOGICAL INDICATORS,2022,139. |
APA | Chen, Xiang.,Tian, Jianqing.,Liu, Shixian.,Wei, Zhijun.,Wang, Yang.,...&Bai, Yongfei.(2022).The complexity of the bacterial community in response to fertilization determines forage production in a semiarid grassland.ECOLOGICAL INDICATORS,139. |
MLA | Chen, Xiang,et al."The complexity of the bacterial community in response to fertilization determines forage production in a semiarid grassland".ECOLOGICAL INDICATORS 139(2022). |
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