Spatial variation in soil microbial community structure and its relation to plant distribution and local environments following afforestation in central China
文献类型：期刊论文
| 作者 | Li, Qianxi2; Feng, Jiao2; Wu, Junjun2; Jia, Wei1,2; Zhang, Qian1,2; Chen, Qiong1,2; Zhang, Dandan1,2; Cheng, Xiaoli2 |
| 刊名 | SOIL & TILLAGE RESEARCH
 |
| 出版日期 | 2019-10-01 |
| 卷号 | 193页码:8-16 |
| 关键词 | Spatial variation Microbial community Local environment |
| ISSN号 | 0167-1987 |
| DOI | 10.1016/j.still.2019.05.015 |
| 英文摘要 | Land use change directly influences soil microbial communities by altering vegetation cover. However, how soil microbial community structure responds spatially to plant distribution within a land use type following afforestation remains unclear. Here, we investigated the spatial variations in soil microbial biomass [e.g., bacteria (B), fungi (F), gram-positive bacteria (G(+)), and gram-negative bacteria (G(-))] and community composition (the F:B ratio and G(+):G- ratio) in woodland, shrubland and adjacent open areas (i.e., control) in the Danjiangkou Reservoir of central China, using geostatistical methods and phospholipid fatty acid (PLFA) analysis. We also explored the underlying mechanisms of whether or not and how environmental drivers, including biotic factors (e.g., tree distribution, present litter and root biomass) and abiotic factors [e.g., soil organic carbon (SOC) and total nitrogen (TN), soil pH, and soil moisture], regulated the spatial variations in these microbial properties using partial Mantel tests. Afforestation increased the PLFA content and the G(+):G- ratio but reduced the F:B ratio compared to that of the open area. Spatial analysis revealed that spatial variations in microbial communities were governed by local environmental drivers affected by tree distribution. Generally, SOC was a critical control on microbial biomass and community composition in all land use types, but the major drivers varied with land use type. Soil pH, SOC and TN affected almost all types of microbial PLFAs in shrubland, whereas litter biomass, SOC and TN were selectively correlated with specific groups of PLFAs (mainly from bacteria) in woodland. Soil pH affected the F:B ratio rather than the G(+):G- ratio in both woodland and shrubland, while root biomass, SOC and TN were proved to be determinants of the F:B ratio and G(+):G- ratio in shrubland. Other than SOC, the soil pH and N level were the primary controls on spatial variations in microbial biomass following afforestation. Overall, our results revealed that tree distribution-induced shifts in local environments controlled the spatial variations in soil microbial community structure within one land use type, highlighting that the role of spatial heterogeneity in microbial communities has important implications for land management. |
| 资助项目 | National Natural Science Foundation of China[31470557] ; National Natural Science Foundation of China[31770563] ; Strategic Priority Research Program B of the Chinese Academy of Sciences[XDB15010200] |
| WOS研究方向 | Agriculture |
| 语种 | 英语 |
| WOS记录号 | WOS:000477787800002 |
| 出版者 | ELSEVIER |
| 源URL | [http://202.127.146.157/handle/2RYDP1HH/8638]  |
| 专题 | 中国科学院武汉植物园 |
| 通讯作者 | Cheng, Xiaoli |
| 作者单位 | 1.Grad Univ Chinese Acad Sci, Beijing 10039, Peoples R China 2.Chinese Acad Sci, Wuhan Bot Garden, Key Lab Aquat Bot & Watershed Ecol, Wuhan 430074, Hubei, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Qianxi,Feng, Jiao,Wu, Junjun,et al. Spatial variation in soil microbial community structure and its relation to plant distribution and local environments following afforestation in central China[J]. SOIL & TILLAGE RESEARCH,2019,193:8-16. |
| APA | Li, Qianxi.,Feng, Jiao.,Wu, Junjun.,Jia, Wei.,Zhang, Qian.,...&Cheng, Xiaoli.(2019).Spatial variation in soil microbial community structure and its relation to plant distribution and local environments following afforestation in central China.SOIL & TILLAGE RESEARCH,193,8-16. |
| MLA | Li, Qianxi,et al."Spatial variation in soil microbial community structure and its relation to plant distribution and local environments following afforestation in central China".SOIL & TILLAGE RESEARCH 193(2019):8-16. |
入库方式： OAI收割
来源：武汉植物园
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