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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 |
ISSN | 0032-079X |
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 |
DOI | 10.1007/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 |
EISSN | 1573-5036 |
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 | |
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 |
推荐引用方式 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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