气候变化领域集成服务门户(CCPortal): Mixed Eucalyptus plantations induce changes in microbial communities and increase biological functions in the soil and litter layers

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DOI	10.1016/j.foreco.2018.11.018
	Mixed Eucalyptus plantations induce changes in microbial communities and increase biological functions in the soil and litter layers
	Pereira A.P.A.; Durrer A.; Gumiere T.; Gonçalves J.L.M.; Robin A.; Bouillet J.-P.; Wang J.; Verma J.P.; Singh B.K.; Cardoso E.J.B.N.
发表日期	2019
ISSN	0378-1127
起始页码	332
结束页码	342
卷号	433
英文摘要	Mixed plantations of Eucalyptus and N2-fixing trees are ecologically beneficial because they stimulate organic matter cycling and increase carbon (C) and nitrogen (N) pools in the soil. However, the microbial mechanisms that contribute to the improvement of C and N dynamics remain poorly understood in managed forest ecosystems. Here, we evaluated interactions between the bacterial community and biological functions involved in C and N cycles in the soil and litter layers resulting from pure or mixed Eucalyptus grandis and Acacia mangium plantations. We hypothesized that the mixed plantations induce changes in the bacterial community that would drive increases in C and N pools in soil and litter layers. We established a field experiment with treatments including pure E. grandis without (E) and with nitrogen fertilization (E + N), pure A. mangium (A), and mixed E. grandis and A. mangium (E + A). Soil and litter from all treatments were sampled 27 and 39 months after planting. We evaluated the soil and litter bacterial community and biological functions involved in C and N cycles (i.e., microbial and enzyme activities, functional gene abundance, and soil-litter nutrient cycling). The treatments A and E + A showed an increase in C and N contents in the organic soil fractions. We found higher bacterial diversity and OTU richness in soil and litter, and higher nifH gene abundance in the soil under A and E + A, when compared to pure E. grandis (especially E + N) plantation. Our data suggest that the total N content influences the bacterial community structure of the litter, which undergoes alterations according to the treatment and forest age. Equally, Rhizobium, Bradyrhizobium and Sphingomonas showed a positive correlation with nifH and soil N. Our study provided evidence that changes in the microbial community in mixed A. mangium and E. grandis plantations is correlated with increased C and N cycling. These findings have implications for increased productivity and environmental sustainability, besides allowing for the optimization of mineral fertilization in forest plantations. © 2018 Elsevier B.V.
英文关键词	Eucalyptus sustainability; Forest ecosystems; Microbial diversity and ecology; Mixed forest; Nutrient cycling
语种	英语
scopus关键词	Biological systems; Digital storage; Ecosystems; Forestry; Genes; Nitrogen; Nutrients; Soils; Sustainable development; Bacterial community structure; Environmental sustainability; Eucalyptus plantations; Forest ecosystem; Microbial diversity; Mixed forests; Nitrogen fertilization; Nutrient cycling; Bacteria; bacterium; carbon cycle; community structure; evergreen tree; forest ecosystem; induced response; litter; microbial community; mixed forest; nitrogen cycle; nitrogen fixation; plantation; soil carbon; soil microorganism; soil nitrogen; soil organic matter; species diversity; Bacteria; Ecosystems; Forestry; Genes; Nitrogen; Nutrients; Acacia mangium; Bacteria (microorganisms); Bradyrhizobium; Eucalyptus; Eucalyptus grandis; Rhizobium; Sphingomonas
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/156273
作者单位	Luiz de Queiroz College of Agriculture, University of São Paulo, Piracicaba, Brazil; Hawkesbury Institute for the Environment, Western Sydney University, Sydney, Australia; Institut national de la recherche scientifique, Centre Eau Terre Environnement, Quebec City, Canada; La recherche agronomique pour le développement, Montpellier, France; Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, China; Institute of Environment and Sustainable Development, Banaras Hindu UniversityUttar Pradesh, India; Global Centre for Land-Based Innovation, Western Sydney University, Sydney, Australia
推荐引用方式 GB/T 7714	Pereira A.P.A.,Durrer A.,Gumiere T.,et al. Mixed Eucalyptus plantations induce changes in microbial communities and increase biological functions in the soil and litter layers[J],2019,433.
APA	Pereira A.P.A..,Durrer A..,Gumiere T..,Gonçalves J.L.M..,Robin A..,...&Cardoso E.J.B.N..(2019).Mixed Eucalyptus plantations induce changes in microbial communities and increase biological functions in the soil and litter layers.Forest Ecology and Management,433.
MLA	Pereira A.P.A.,et al."Mixed Eucalyptus plantations induce changes in microbial communities and increase biological functions in the soil and litter layers".Forest Ecology and Management 433(2019).