Urbanization significantly impacts the connectivity of soil microbes involved in nitrogen dynamics at a watershed scale
文献类型：期刊论文
| 作者 | Zhang, Yan; Ji, Guodong; Wu, Tong; Qiu, Jiangxiao |
| 刊名 | ENVIRONMENTAL POLLUTION
 |
| 出版日期 | 2020-03 |
| 卷号 | 258页码:1-10 |
| 关键词 | Microbial interactions Soil bacterial communities Impervious surface Watershed urbanization Nitrogen removal |
| ISSN号 | 0269-7491 |
| 英文摘要 | As one of the most dominant ecosystems of urban green space, turfgrasses provide a wide range of ecosystem services. However, little is known about the interactions of microbial communities in turfgrass soils and how these interactions respond to expanding development of impervious surfaces during watershed urbanization. In this study, we analyzed bacterial communities and their co-occurrence patterns in turfgrass soils along an urbanization gradient as measured by the proportion of impervious surfaces in Jiulong River watershed in Fujian, China. Results show that the diversity and network size of bacterial communities negatively associated with impervious surfaces. The bacterial communities showed non-random co-occurrence patterns, with more intra-module connections observed for urbanized networks. The co-occurrence network with distinct modules of soil samples with contrasting land cover imperviousness suggested different functional organizations with altered microbial nitrogen processes. Structural equation modelling revealed that watershed impervious surfaces had indirect impacts on microbial connectivity by altering soil properties, including pH, temperature, moisture, C/N and nitrate (NO3-). Moreover, impervious surfaces affected microbial connectivity far more than human population density. Our study highlights the significance of human disturbances in affecting microbial interactions and assemblies in turfgrass ecosystems through impervious surfaces and provides benefits for sustainable urban planning and management at a watershed scale. (C) 2019 Elsevier Ltd. All rights reserved. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/44506]  |
| 专题 | 生态环境研究中心_城市与区域生态国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Zhang, Yan,Ji, Guodong,Wu, Tong,et al. Urbanization significantly impacts the connectivity of soil microbes involved in nitrogen dynamics at a watershed scale[J]. ENVIRONMENTAL POLLUTION,2020,258:1-10. |
| APA | Zhang, Yan,Ji, Guodong,Wu, Tong,&Qiu, Jiangxiao.(2020).Urbanization significantly impacts the connectivity of soil microbes involved in nitrogen dynamics at a watershed scale.ENVIRONMENTAL POLLUTION,258,1-10. |
| MLA | Zhang, Yan,et al."Urbanization significantly impacts the connectivity of soil microbes involved in nitrogen dynamics at a watershed scale".ENVIRONMENTAL POLLUTION 258(2020):1-10. |
入库方式： OAI收割
来源：生态环境研究中心
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