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Linkage of plant and abiotic properties to the abundance and activity of N-cycling microbial communities in Tibetan permafrost-affected regions
Chen, Yongliang; Kou, Dan1; Li, Fei1; Ding, Jinzhi; Yang, Guibiao1; Fang, Kai1; Yang, Yuanhe1
2019
发表期刊PLANT AND SOIL
ISSN0032-079X
卷号434期号:1-2页码:453-466
摘要AimsAmmonia oxidation and denitrification are crucial for nitrogen (N) availability and nitrous oxide production in N-limited permafrost soils. However, it remains unclear about the relative roles of abiotic and biotic properties in controlling the abundance and activity of ammonia-oxidizing and denitrifying microorganisms in permafrost-affected soils.MethodsWe analysed the potential ammonia oxidation and denitrification rates (PAO and PDR), the abundance of archaeal amoA, bacterial amoA, nirK, nirS and nosZ genes, soil characteristics, climatic and plant properties across two vegetation types in Tibetan permafrost-affected soils. The relative importance of abiotic and biotic properties in driving functional N gene abundance, PAO and PDR were assessed using variation partition analysis (VPA) and random forest (RF) model.ResultsThe functional N gene abundance and PDR were lower in alpine steppe than in alpine meadow. Variations in the PAO and PDR and functional N gene abundance were mainly explained by abiotic variables such as organic carbon and total N, then by plant properties such as plant N concentration, plant species richness and productivity based on the VPA. The RF model showed that abiotic properties (e.g., precipitation) and plant properties (e.g., plant N concentration or plant productivity) predicted the PDR and the abundance of functional N genes. Both VPA and RF model showed that the PAO and PDR could be determined by the abundance of functional N genes such as archaeal amoA gene and nosZ gene, respectively.ConclusionsOur study highlights that abiotic and plant properties are important predictors of the abundance and activity of ammonia-oxidizing and denitrifying communities in permafrost-affected regions, implying that plant properties, which were previously overlooked, should be incorporated into ecosystem models for improved prediction of belowground N process rates in a changing environment.
关键词Ammonia oxidation Ammonia-oxidizing microorganism Biogeography Denitrifiers denitrification Permafrost
学科领域Agronomy ; Plant Sciences ; Soil Science
DOI10.1007/s11104-018-3845-9
收录类别SCI
语种英语
WOS关键词AMMONIA-OXIDIZING BACTERIA ; NITROUS-OXIDE PRODUCTION ; DENITRIFIER ABUNDANCE ; ARCTIC ECOSYSTEMS ; POPULATION-SIZE ; N2O PRODUCTION ; ARCHAEA ; DIVERSITY ; OXIDATION ; FERTILIZATION
WOS研究方向Agriculture ; Plant Sciences
WOS记录号WOS:000458270300029
出版者SPRINGER
文献子类Article
出版地DORDRECHT
EISSN1573-5036
资助机构National Key Research and Development Program of China [2017YFA0604803, 2016YFC0500701] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [41877046, 41501265, 31670482] ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences [QYZDB-SSW-SMC049] ; Chinese Academy of Sciences-Peking University Pioneer Cooperation Team
作者邮箱yhyang@ibcas.ac.cn
引用统计
被引频次:19[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ibcas.ac.cn/handle/2S10CLM1/19573
专题植被与环境变化国家重点实验室
作者单位1.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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GB/T 7714
Chen, Yongliang,Kou, Dan,Li, Fei,et al. Linkage of plant and abiotic properties to the abundance and activity of N-cycling microbial communities in Tibetan permafrost-affected regions[J]. PLANT AND SOIL,2019,434(1-2):453-466.
APA Chen, Yongliang.,Kou, Dan.,Li, Fei.,Ding, Jinzhi.,Yang, Guibiao.,...&Yang, Yuanhe.(2019).Linkage of plant and abiotic properties to the abundance and activity of N-cycling microbial communities in Tibetan permafrost-affected regions.PLANT AND SOIL,434(1-2),453-466.
MLA Chen, Yongliang,et al."Linkage of plant and abiotic properties to the abundance and activity of N-cycling microbial communities in Tibetan permafrost-affected regions".PLANT AND SOIL 434.1-2(2019):453-466.
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