气候变化领域集成服务门户(CCPortal): The spatial distribution and drivers of soil microbial richness and diversity in a karst broadleaf forest

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DOI	10.1016/j.foreco.2019.03.033
	The spatial distribution and drivers of soil microbial richness and diversity in a karst broadleaf forest
	Peng W.; Zhu Y.; Song M.; Du H.; Song T.; Zeng F.; Zhang F.; Wang K.; Luo Y.; Lan X.; Zhang J.
发表日期	2019
ISSN	0378-1127
卷号	449
英文摘要	Soil microorganisms regulate ecosystem function and aboveground community dynamics in terrestrial ecosystems. However, our current understanding of the drivers of soil microbial diversity lags our understanding of macroorganisms. Here, we used Illumina sequencing of 16S and ITS rRNA genes to explore which factor(s) controlled soil microbial (i.e., bacteria and fungi) richness and diversity in a 25-ha karst broadleaf forest in Southwest China. Across the plot, all bacterial and fungal richness (number of OTUs) and diversity indices (Shannon diversity and phylogenetic diversity) showed strong spatial autocorrelations. Soil microbial richness and diversity indices displayed a unimodal pattern from south to north in the karst forest, with peaks in the low and middle areas of the plot. Slope was found to be the best predictor of soil bacterial and fungal richness and diversity indices. Soil pH was negatively related with bacterial richness, and with bacterial and fungal phylogenetic diversity. Tree Shannon diversity and density together explained much of the variations in fungal OTUs and diversity indices. Spatial factors explained much less of the variation in soil microbial richness and diversity indices than the selected environmental variables, which indicated that habitat heterogeneity rather than dispersal limitation played an important role in soil microbial richness and diversity in the karst forest. In conclusion, slope was the major driver of the spatial distribution of soil microbial richness and diversity in the karst forest due to its effects on plant (i.e., tree Shannon diversity and tree density) and soil characteristics (i.e., soil pH and available phosphorus). © 2019
英文关键词	Driver; Illumina sequencing; Karst forest; Microbial diversity; Soil microbial community
语种	英语
scopus关键词	Bacteria; Ecosystems; Forestry; Fungi; Landforms; RNA; Soils; Spatial distribution; Spatial variables measurement; Driver; Illumina; Karst forest; Microbial diversity; Soil microbial community; Soil surveys; broad-leaved forest; karst; microbial community; molecular analysis; soil microorganism; spatial distribution; species diversity; species richness; Bacteria; Ecosystems; Forestry; Fungi; Nucleic Acids; Slope; Soil; Trees; Bacteria (microorganisms); Fungi; Otus
来源期刊	Forest Ecology and Management
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/155818
作者单位	Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan 410125, China; College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, Hunan 410128, China; Huanjiang Observation and Research Station for Karst Ecosystems, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan 410125, China; Agricultural College, Hunan Agricultural University, Changsha, Hunan 410128, China; Center for Ecosystem Science and Society (Ecoss), Department of Biology Sciences, Northern Arizona University, Flagstaff, AZ 86001, United States; Department of Earth System Science, Tsinghua University, Beijing, 10084, China
推荐引用方式 GB/T 7714	Peng W.,Zhu Y.,Song M.,et al. The spatial distribution and drivers of soil microbial richness and diversity in a karst broadleaf forest[J],2019,449.
APA	Peng W..,Zhu Y..,Song M..,Du H..,Song T..,...&Zhang J..(2019).The spatial distribution and drivers of soil microbial richness and diversity in a karst broadleaf forest.Forest Ecology and Management,449.
MLA	Peng W.,et al."The spatial distribution and drivers of soil microbial richness and diversity in a karst broadleaf forest".Forest Ecology and Management 449(2019).