中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Diverse responses of belowground internal nitrogen cycling to increasing aridity

文献类型:期刊论文

作者Kou, Dan4; Peng, Yunfeng; Wang, Guanqin4; Ding, Jinzhi4; Chen, Yongliang; Yang, Guibiao4; Fang, Kai4; Liu, Li4; Zhang, Beibei; Mueller, Christoph2,3
刊名SOIL BIOLOGY & BIOCHEMISTRY
出版日期2018
卷号116页码:189-192
关键词Ammonia oxidation archaea Drylands Mineralization Microbial inunobilization Nitrification Nitrogen cycle
ISSN号0038-0717
DOI10.1016/j.soilbio.2017.10.010
文献子类Article
英文摘要Belowground microbial nitrogen (N) processes play key roles in regulating terrestrial ecosystem services such as vegetation production, however, our understanding of their responses to climate change remains limited. We determined patterns and controls of five gross N transformation processes along a typical aridity gradient on the Tibetan Plateau. Potential gross N transformation rates responded diversely to the changing aridity. Both mineralization (M-N, average rate: 2.87 mg N kg(-1) soil d(-1)) and ammonium inunobilization (I-NH4, 3.35 mg N kg(-1) soil d(-1)) declined as aridity increased. Autotrophic nitrification (O-NH4, 1.72 mg N kg(-1) soil d(-1)) exhibited a bell-shaped pattern along the gradient, with an optimum aridity of 0.53 (1- aridity index (AI)). By contrast, rates of nitrate immobilization (I-NO3, 0.46 mg N kg(-1) soil d(-1)) and dissimilatory nitrate reduction to ammonium (DNRA, 0.10 mg N kg(-1) soil d(-1)) did not respond to the changing aridity. These results suggest that predicted increases in aridity will exert different effects on various soil internal N cycling processes, and thus potentially have profotmd impact on structure and function of dryland ecosystems.
学科主题Soil Science
出版地OXFORD
电子版国际标准刊号1879-3428
WOS关键词RETENTION ; DRYLANDS ; FOREST
语种英语
WOS记录号WOS:000419417900022
出版者PERGAMON-ELSEVIER SCIENCE LTD
资助机构National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31670482, 41371213] ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences [QYZDB-SSW-SMC049] ; Chinese Academy of Sciences-Pelting University Pioneer Cooperation Team ; Thousand Young Talents ProgramChinese Academy of Sciences
源URL[http://ir.ibcas.ac.cn/handle/2S10CLM1/20639]  
专题植被与环境变化国家重点实验室
作者单位1.Nanjing Normal Univ, Sch Geog Sci, Nanjing 210047, Jiangsu, Peoples R China
2.Justus Liebig Univ Giessen, Dept Plant Ecol, Heinrich Buff Ring 26, D-35392 Giessen, Germany
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China
5.Univ Coll Dublin, Sch Biol & Environm Sci, Dublin, Ireland
推荐引用方式
GB/T 7714
Kou, Dan,Peng, Yunfeng,Wang, Guanqin,et al. Diverse responses of belowground internal nitrogen cycling to increasing aridity[J]. SOIL BIOLOGY & BIOCHEMISTRY,2018,116:189-192.
APA Kou, Dan.,Peng, Yunfeng.,Wang, Guanqin.,Ding, Jinzhi.,Chen, Yongliang.,...&Yang, Yuanhe.(2018).Diverse responses of belowground internal nitrogen cycling to increasing aridity.SOIL BIOLOGY & BIOCHEMISTRY,116,189-192.
MLA Kou, Dan,et al."Diverse responses of belowground internal nitrogen cycling to increasing aridity".SOIL BIOLOGY & BIOCHEMISTRY 116(2018):189-192.

入库方式: OAI收割

来源:植物研究所

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