中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Nitrogen addition increases the contents of glomalin-related soil protein and soil organic carbon but retains aggregate stability in a Pinus tabulaeformis forest

文献类型:期刊论文

作者Hang Jing2; Lipeng Sun2; Guoliang Wang1,2; Guobin Liu1,2; Liu, GB (reprint author), Northwest A&F Univ, Inst Soil & Water Conservat, Yangling, Shaanxi, Peoples R China.; Liu, GB (reprint author), Chinese Acad Sci, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling, Shaanxi, Peoples R China.; Liu, GB (reprint author), Minist Water Resources, Yangling, Shaanxi, Peoples R China.
刊名PEERJ
出版日期2018
卷号6
ISSN号2167-8359
关键词Aggregate Mean Weight Diameter Glomalin-related Soil Protein Soil Organic Carbon Nitrogen Deposition
DOI10.7717/peerj.5039
文献子类Article
英文摘要Background: Glomalin-related soil protein (GRSP) and soil organic carbon (SOC) contribute to the formation and stability of soil aggregates, but the mechanism by which global atmospheric nitrogen (N) deposition changes soil aggregate stability by altering the distribution of GRSP and SOC in different aggregate fractions remains unknown. Methods: We used a gradient N addition (0-9 g N m(-2) y(-1) ) in Pinus tabulaeformis forest for two years in northeast China and then examined the changes in SOC contents, total GRSP (T-GRSP), and easily extractable GRSP (EE-GRSP) contents in three soil aggregate fractions (macro-aggregate: >250 mu m, micro-aggregate: 250-53 mu m, and fine material: <53 mu m) and their relationship with aggregate stability. Results: (1) The soil was dominated by macro-aggregates. Short term N addition had no significant effect on mean weight diameter (MWD) and geometric mean diameter (GMD). (2) GRSP varied among aggregate fractions, and N addition had different effects on the distribution of GRSP in aggregate fractions. The EE-GRSP content in the macro-aggregates increased initially and then decreased with increasing N addition levels, having a peak value of 0.480 mg g(-1) at 6 g N m(-2)y(-1) The micro-aggregates had the lowest EE-GRSP content (0.148 mg g(-1) ) at 6 g N m(-2)y(-1) . Furthermore, the T-GRSP content significantly increased in the aggregate fractions with the N addition levels. (3) The macro-aggregate had the highest SOC content, followed by the micro-aggregate and the fine material had the lowest SOC content. N addition significantly increased the SOC content in all the aggregate fractions. (4) GRSP and SOC contents were not significantly correlated with MWD. Conclusion: Glomalin-related soil protein and SOC contents increased by N addition, but this increase did not enhance aggregate stability in short term, and the improvement of stability might depend on binding agents and incubation time.
学科主题Science & Technology - Other Topics
出版地341-345 OLD ST, THIRD FLR, LONDON, EC1V 9LL, ENGLAND
语种英语
出版者PEERJ INC
WOS记录号WOS:000436338600007
资助机构National Natural Science Foundation of China [41671513] ; National Natural Science Foundation of China [41671513] ; National Key Research and Development Program of China [2017YFC0504601] ; National Key Research and Development Program of China [2017YFC0504601] ; National Natural Science Foundation of China [41671513] ; National Natural Science Foundation of China [41671513] ; National Key Research and Development Program of China [2017YFC0504601] ; National Key Research and Development Program of China [2017YFC0504601]
源URL[http://ir.iswc.ac.cn/handle/361005/8228]  
专题水保所科研产出--SCI_2018--SCI
通讯作者Liu, GB (reprint author), Northwest A&F Univ, Inst Soil & Water Conservat, Yangling, Shaanxi, Peoples R China.; Liu, GB (reprint author), Chinese Acad Sci, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling, Shaanxi, Peoples R China.; Liu, GB (reprint author), Minist Water Resources, Yangling, Shaanxi, Peoples R China.
作者单位1.Chinese Acad Sci, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling, Shaanxi, Peoples R China
2.Northwest A&F Univ, Inst Soil & Water Conservat, Yangling, Shaanxi, Peoples R China
3.Minist Water Resources, Yangling, Shaanxi, Peoples R China
推荐引用方式
GB/T 7714
Hang Jing,Lipeng Sun,Guoliang Wang,et al. Nitrogen addition increases the contents of glomalin-related soil protein and soil organic carbon but retains aggregate stability in a Pinus tabulaeformis forest[J]. PEERJ,2018,6.
APA Hang Jing.,Lipeng Sun.,Guoliang Wang.,Guobin Liu.,Liu, GB .,...&Liu, GB .(2018).Nitrogen addition increases the contents of glomalin-related soil protein and soil organic carbon but retains aggregate stability in a Pinus tabulaeformis forest.PEERJ,6.
MLA Hang Jing,et al."Nitrogen addition increases the contents of glomalin-related soil protein and soil organic carbon but retains aggregate stability in a Pinus tabulaeformis forest".PEERJ 6(2018).

入库方式: OAI收割

来源:水土保持研究所

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