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Vital roles of soil microbes in driving terrestrial nitrogen immobilization

文献类型：期刊论文

作者Li, Zhaolei2,3,4,5,6; Zeng, Zhaoqi2,7; Song, Zhaopeng6,8; Wang, Fuqiang6,9; Tian, Dashuan2; Mi, Wenhai10; Huang, Xin6; Wang, Jinsong2; Song, Lei2,7; Yang, Zhongkang5
刊名GLOBAL CHANGE BIOLOGY
出版日期2021-03-04
页码11
ISSN号1354-1013
关键词croplands global change microbial biomass nitrogen immobilization soil nitrogen retention
DOI10.1111/gcb.15552
通讯作者Niu, Shuli(sniu@igsnrr.ac.cn)
英文摘要Nitrogen immobilization usually leads to nitrogen retention in soil and, thus, influences soil nitrogen supply for plant growth. Understanding soil nitrogen immobilization is important for predicting soil nitrogen cycling under anthropogenic activities and climate changes. However, the global patterns and drivers of soil nitrogen immobilization remain unclear. We synthesized 1350 observations of gross soil nitrogen immobilization rate (NIR) from 97 articles to identify patterns and drivers of NIR. The global mean NIR was 8.77 +/- 1.01 mg N kg(-1) soil day(-1). It was 5.55 +/- 0.41 mg N kg(-1) soil day(-1) in croplands, 15.74 +/- 3.02 mg N kg(-1) soil day(-1) in wetlands, and 15.26 +/- 2.98 mg N kg(-1) soil day(-1) in forests. The NIR increased with mean annual temperature, precipitation, soil moisture, soil organic carbon, total nitrogen, dissolved organic nitrogen, ammonium, nitrate, phosphorus, and microbial biomass carbon. But it decreased with soil pH. The results of structural equation models showed that soil microbial biomass carbon was a pivotal driver of NIR, because temperature, total soil nitrogen, and soil pH mostly indirectly influenced NIR via changing soil microbial biomass. Moreover, microbial biomass carbon accounted for most of the variations in NIR among all direct relationships. Furthermore, the efficiency of transforming the immobilized nitrogen to microbial biomass nitrogen was lower in croplands than in natural ecosystems (i.e., forests, grasslands, and wetlands). These findings suggested that soil nitrogen retention may decrease under the land use change from forests or wetlands to croplands, but NIR was expected to increase due to increased microbial biomass under global warming. The identified patterns and drivers of soil nitrogen immobilization in this study are crucial to project the changes in soil nitrogen retention.
资助项目National Natural Science Foundation of China[31988102] ; National Natural Science Foundation of China[31625006] ; CAS International Collaboration Program[131A11KYSB20180010] ; China Postdoctoral Science Foundation[2018M641459] ; China International Postdoctoral Exchange Fellowship Program[20190071]
WOS研究方向Biodiversity & Conservation ; Environmental Sciences & Ecology
语种英语
出版者WILEY
WOS记录号WOS:000625494000001
资助机构National Natural Science Foundation of China ; CAS International Collaboration Program ; China Postdoctoral Science Foundation ; China International Postdoctoral Exchange Fellowship Program
源URL[http://ir.igsnrr.ac.cn/handle/311030/160435]  
专题中国科学院地理科学与资源研究所
通讯作者Niu, Shuli
作者单位1.No Arizona Univ, Dept Math, Flagstaff, AZ 86011 USA
2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China
3.Southwest Univ, Coll Resources & Environm, Chongqing, Peoples R China
4.Southwest Univ, Acad Agr Sci, Chongqing, Peoples R China
5.Shandong Agr Univ, Coll Resources & Environm, Natl Engn Lab Efficient Utilizat Soil & Fertilize, Key Lab Agr Environm,Univ Shandong, Tai An, Shandong, Peoples R China
6.No Arizona Univ, Dept Biol Sci, Ctr Ecosyst Sci & Soc, Flagstaff, AZ 86011 USA
7.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China
8.Beijing Forestry Univ, Key Lab Forest Resources & Ecosyst Proc, Beijing, Peoples R China
9.China Agr Univ, Coll Resources & Environm Sci, Beijing, Peoples R China
10.Yangzhou Univ, Coll Environm Sci & Engn, Yangzhou, Jiangsu, Peoples R China
推荐引用方式
GB/T 7714		 Li, Zhaolei,Zeng, Zhaoqi,Song, Zhaopeng,et al. Vital roles of soil microbes in driving terrestrial nitrogen immobilization[J]. GLOBAL CHANGE BIOLOGY,2021:11.
APA Li, Zhaolei.,Zeng, Zhaoqi.,Song, Zhaopeng.,Wang, Fuqiang.,Tian, Dashuan.,...&Niu, Shuli.(2021).Vital roles of soil microbes in driving terrestrial nitrogen immobilization.GLOBAL CHANGE BIOLOGY,11.
MLA Li, Zhaolei,et al."Vital roles of soil microbes in driving terrestrial nitrogen immobilization".GLOBAL CHANGE BIOLOGY (2021):11.

入库方式： OAI收割

来源：地理科学与资源研究所

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