气候变化领域集成服务门户(CCPortal): Edaphic factors but not plant characteristics mainly alter soil microbial properties along a restoration chronosequence of Pinus tabulaeformis stands on Mt. Ziwuling, China

CCPortal

DOI	10.1016/j.foreco.2019.117625
	Edaphic factors but not plant characteristics mainly alter soil microbial properties along a restoration chronosequence of Pinus tabulaeformis stands on Mt. Ziwuling, China
	Zhong Z.; Wang X.; Zhang X.; Zhang W.; Xu Y.; Ren C.; Han X.; Yang G.
发表日期	2019
ISSN	0378-1127
卷号	453
英文摘要	Soil microorganisms play an important role in the functional connection between above- and below-ground ecosystems during vegetation restoration. However, the influencing patterns of plants and soils on the microbial properties in the process remain unclear, especially in ecologically fragile zones. Here, we investigated soil bacterial and fungal communities at twelve Pinus tabulaeformis stands on Ziwuling Mountain in Loess Hilly Region, along an age gradient from 15- to 45-year-old stands, with respect to abundance and diversity using Illumina sequencing of the 16S rRNA gene and ITS gene, respectively. Soil microbial biomass, enzyme activity, vegetation characteristics (i.e., coverage, fine root biomass, and the composition and diversity) and soil properties (i.e., bulk density, organic C, total N, and available N) were also determined. The results showed that the microbial biomass increased significantly along the restoration chronosequence, being consistently the highest at the 45-y site. However, the saccharase, urease, catalase, and alkaline phosphatase that regulate soil organic matter and nutrient transformation were less impacted by the restoration time. Bacterial alpha diversity gradually increased with time whereas fungal alpha diversity was highest at the 30-y site, which was related to increasing levels of NO3 −, coverage, and fine root biomass. The response of soil bacterial beta diversity to the age gradients was larger than that of fungal beta diversity, although both groups were significantly affected by vegetation restoration. Moreover, bacterial communities were dominated by oligotrophic Actinobacteria at 15-y and 25-y sites and transformed into copiotrophic Proteobacteria-dominant at 30-y and 45-y sites. However, no significant variation in the fungal dominant phyla (i.e., Ascomycota, Basidiomycota, and Zygomycota) were detected with restoration. Furthermore, the dominant species [Pinus tabulaeformis (tree) and Carex tristachya (herb)] affected the microbial biomass, diversity, and abundance of bacterial dominant phyla significantly, but affected the fungal community composition much less. Vegetation diversity has no significant effect on microbial diversities (alpha and beta diversity). Soil physicochemical factors could widely explain the variations in microbial diversity and community composition, enzyme activity, and microbial biomass in restoration processes, especially bulk density and NO3 −. Overall, our results demonstrate that soil bacteria rather than fungi can reflect the changes in plant and soil properties with increasing stand age, and the shifts in the predominant bacterial and fungal characteristics along the age gradient were mainly the result of differences in soil physicochemical factors prevailing at each restoration stage. © 2019 Elsevier B.V.
英文关键词	Illumina sequencing; Plant diversity; Restoration chronosequence; Soil microbial communities; Soil properties
语种	英语
scopus关键词	Bacteria; Biomass; Ecosystems; Enzyme activity; Forestry; Fungi; Genes; Phosphatases; Physicochemical properties; Restoration; RNA; Vegetation; Chronosequences; Illumina; Plant diversity; Soil microbial community; Soil property; Soils; chronosequence; coniferous tree; genetic analysis; microbial activity; microbial community; soil microorganism; soil property; species diversity; stand structure; Biomass; Bulk Density; Characteristics; Patterns; Pinus Tabulaeformis; Plants; Restoration; Soil; China; Shaanxi; Ziwuling Mountain; Actinobacteria; Ascomycota; Bacteria (microorganisms); Basidiomycota; Carex; Fungi; Pinus tabuliformis; Proteobacteria; Tristachya; Zygomycota
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/155712
作者单位	College of Agronomy, Northwest A&F University, Yangling 712100, Shaanxi, China; The Research Center of Recycle Agricultural Engineering and Technology of Shaanxi Province, Yangling 712100, Shaanxi, China
推荐引用方式 GB/T 7714	Zhong Z.,Wang X.,Zhang X.,et al. Edaphic factors but not plant characteristics mainly alter soil microbial properties along a restoration chronosequence of Pinus tabulaeformis stands on Mt. Ziwuling, China[J],2019,453.
APA	Zhong Z..,Wang X..,Zhang X..,Zhang W..,Xu Y..,...&Yang G..(2019).Edaphic factors but not plant characteristics mainly alter soil microbial properties along a restoration chronosequence of Pinus tabulaeformis stands on Mt. Ziwuling, China.Forest Ecology and Management,453.
MLA	Zhong Z.,et al."Edaphic factors but not plant characteristics mainly alter soil microbial properties along a restoration chronosequence of Pinus tabulaeformis stands on Mt. Ziwuling, China".Forest Ecology and Management 453(2019).