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Global variations and controlling factors of soil nitrogen turnover rate

文献类型：期刊论文

作者Li, Zhaolei5,6; Zeng, Zhaoqi4,6; Tian, Dashuan6; Wang, Jinsong6; Wang, Bingxue6; Chen, Han Y. H.3; Quan, Quan4,6; Chen, Weinan4,6; Yang, Jilin4,6; Meng, Cheng2,6
刊名EARTH-SCIENCE REVIEWS
出版日期2020-08-01
卷号207页码:10
ISSN号0012-8252
关键词Soil nitrogen availability Nitrogen turnover Climatic factor Soil properties Soil C:N Microbial biomass
DOI10.1016/j.earscirev.2020.103250
英文摘要Soil nitrogen (N) availability, which is crucial to plant growth, largely relies on the turnover of soil organic N into inorganic N through mineralization. However, the patterns and drivers of global soil N turnover rates (NTR) have not been carefully examined so far. We compiled a dataset that consists of 1175 observations from 159 published articles across various terrestrial ecosystems in the world. Our analysis of this dataset showed that changes in soil NTR successfully predicted global NH4+-N content, a key indicator of soil N availability. Our analysis also revealed a clear latitudinal pattern of soil NTR, which was high in low latitude but low in high latitude. Soil NTR was greater in croplands than grasslands and wetlands. The dominant driving variables were mean annual temperature which accounted for 23% of the total variation in soil NTR. Soil clay content explained 15% of the total variation and it strongly inhibited soil NTR. However, the key driver in soil NTR differed with ecosystem type, i.e. soil microbial biomass in croplands, clay content in forests and grasslands, and soil C:N ratio in wetlands. This study highlights the importance of climatic factors and soil properties on soil NTR, which should be integrated into biogeochemical models to better predict the changes of soil N availability at the global scale.
WOS关键词PLANT LITTER DECOMPOSITION ; MICROBIAL BIOMASS ; ORGANIC-MATTER ; STABILIZATION MECHANISMS ; TEMPERATURE SENSITIVITY ; ENZYME-ACTIVITY ; CARBON ; MINERALIZATION ; TILLAGE ; PATTERNS
资助项目National Natural Science Foundation of China[31988102] ; National Natural Science Foundation of China[31625006] ; CAS international collaboration program[131A11KYSB20180010] ; Postdoctoral Science Foundation of China[2018M641459] ; China International Postdoctoral Exchange Fellowship Program[20190071]
WOS研究方向Geology
语种英语
出版者ELSEVIER
WOS记录号WOS:000556899700023
资助机构National Natural Science Foundation of China ; CAS international collaboration program ; Postdoctoral Science Foundation of China ; China International Postdoctoral Exchange Fellowship Program
源URL[http://ir.igsnrr.ac.cn/handle/311030/158174]  
专题生态系统网络观测与模拟院重点实验室_外文论文
作者单位1.Chengdu Univ Technol, Coll Earth Sci, Chengdu 610059, Peoples R China
2.Peking Univ, Shenzhen Grad Sch, Shenzhen 518055, Peoples R China
3.Lakehead Univ, Fac Nat Resources Management, 955 Oliver Rd, Thunder Bay, ON P7B 5E1, Canada
4.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China
5.Shandong Agr Univ, Key Lab Agr Environm Univ Shandong, Coll Resources & Environm, Natl Engn Lab Efficient Utilizat Soil & Fertilize, Tai An 271018, Shandong, Peoples R China
6.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China
推荐引用方式
GB/T 7714		 Li, Zhaolei,Zeng, Zhaoqi,Tian, Dashuan,et al. Global variations and controlling factors of soil nitrogen turnover rate[J]. EARTH-SCIENCE REVIEWS,2020,207:10.
APA Li, Zhaolei.,Zeng, Zhaoqi.,Tian, Dashuan.,Wang, Jinsong.,Wang, Bingxue.,...&Niu, Shuli.(2020).Global variations and controlling factors of soil nitrogen turnover rate.EARTH-SCIENCE REVIEWS,207,10.
MLA Li, Zhaolei,et al."Global variations and controlling factors of soil nitrogen turnover rate".EARTH-SCIENCE REVIEWS 207(2020):10.

入库方式： OAI收割

来源：地理科学与资源研究所

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