不同时空尺度下土壤微生物群落分布及驱动因素研究进展  

Distribution Patterns and Drivers of Soil Microbial Communities at Different Spatiotemporal Scales: A Review

作　　者：康小虎 刘鑫[1] 刘姗姗 李玥萍 贾婷婷 KANG Xiaohu;LIU Xin;LIU Shanshan;LI Yueping;JIA Tingting(School of Biological and Pharmaceutical Engineering,Lanzhou Jiaotong University,Key Laboratory of Extreme Environmental Microbial Resources and Engineering of Gansu Province,Lanzhou 730070,China)

机构地区：[1]兰州交通大学生物与制药工程学院,甘肃省极端环境微生物资源与工程重点实验室,兰州730070

出　　处：《土壤》2024年第4期689-696,共8页Soils

基　　金：甘肃省自然科学基金项目(23JRRA916);甘肃省高等学校创新基金项目(2021A-039)资助。

摘　　要：不同时空尺度下土壤微生物多样性及群落结构的分布特征,是理解群落构建过程与驱动机制、预测全球气候变化背景下微生物群落响应的理论基础。近二十年,随着高通量测序技术的广泛应用,土壤微生物群落时空分布研究取得了多项重要进展。本文重点综述了土壤细菌和真菌多样性和群落结构在不同空间尺度(微小尺度、局域尺度、区域和全球尺度)和时间尺度(短期、季节、多年及数百年以上)下的分布模式及关键驱动因素。目前研究表明,细菌、真菌群落的时空分布模式不同,主要受土壤空间异质性的驱动,空间距离的影响作用大于时间,时间演变是空间分布的补充。未来研究中需重点关注区域和全球尺度下,不同微生物群落及其更高分类水平上的群落分布格局,探究普适性分布模式及驱动机制,为厘清复杂的土壤微生物群落时空分布规律提供新的研究思路。Reviewing of spatiotemporal distribution patterns of soil microbial community diversities and structures at different scales gives rise to understanding the mechanisms of community assembling and responding to global climate change.Many advances have been made in this field in the past two decades with widely-used high-throughput sequencing technology.An overview of the distribution patterns and drivers of soil bacteria and fungi communities at different spatial scales(micro,local,regional and continental scales)and temporal scales(short-term,seasonal,multi-years and more than hundreds of years)was provided in this paper.The recent studies indicated that spatiotemporal distribution patterns are different between bacteria and fungi,which are mainly driven by the spatial heterogeneity of soil,and space is more important than time in regulating soil microbial community,or time variables act as a supplement for space.Based on the existing progresses and problems,future perspectives in this field are pointed to explore the spatial distribution patterns at higher taxonomy levels at regional and continental scales for specific community,and reveal the universal distribution pattern and driving mechanism that attempts to simplify this question in a new way.

关 键 词：土壤微生物群落 分布格局 空间尺度 时间尺度 驱动因素 

分 类 号：X171.1[环境科学与工程—环境科学]