YIC-IR  > 中科院海岸带环境过程与生态修复重点实验室
Characteristics of soil C:N ratio and delta C-13 in wheat-maize cropping system of the North China Plain and influences of the Yellow River
Shi, Huijin1; Wang, Xiujun1; Xu, Minggang2; Zhang, Haibo3,4; Luo, Yongming3; Wang, Xiujun(Beijing Normal Univ, Coll Global Change & Earth Syst Sci, Beijing 100875, Peoples R China)
2017-12-04
Source PublicationSCIENTIFIC REPORTS
ISSN2045-2322
Volume7
Contribution Rank第3完成单位
AbstractTo better understand the characteristics of soil organic matter (SOM) in the North China Plain, we evaluate the large scale variations of soil organic carbon (SOC), total nitrogen (TN), carbon to nitrogen (C:N) ratio and stable carbon isotopic compositions (delta C-13) in SOC over 0-100 cm. To assess the influence of the Yellow River, 31 sites are selected from the wheat-maize double cropping system, and grouped into two: 10 sites near and 21 sites far from the river. Our data show that mean soil C: N ratio is low (7.6-9.9) across the region, and not affected by the Yellow River. However, SOC and TN are significantly (P < 0.05) lower in subsoil near the Yellow River (2.0 and 0.2-0.3 g kg(-1) for SOC and TN) than far away (3.1 and 0.4 g kg(-1)); delta C-13 is significantly more negative below 60 cm near the river (-23.3 to -22.6%) than far away (-21.8 to -21.4%). We estimate that the contributions of wheat and maize to SOC are 61.3-68.1% and 31.9-38.8%, respectively. Our analyses indicate that the overall low levels of SOC in the North China Plain may be associated with the low soil C: N ratio and less clay content. The hydrological processes may also partly be responsible, particularly for those near the Yellow River.
DOI10.1038/s41598-017-17060-3
Funding OrganizationBeijing Normal University(310232102) ; National Key Basic Research Program(2013CB956602) ; Fundamental Research Funds for the Central Universities
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Indexed BySCI
WOS KeywordLONG-TERM FERTILIZATIONS ; ORGANIC-CARBON ; TOTAL NITROGEN ; INORGANIC CARBON ; DYNAMICS ; MATTER ; DECOMPOSITION ; SEQUESTRATION ; ABUNDANCE ; TURNOVER
SubtypeArticle
Language英语
WOS Research AreaScience & Technology - Other Topics
WOS IDWOS:000417025400035
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Document Type期刊论文
Identifierhttp://ir.yic.ac.cn/handle/133337/23556
Collection中科院海岸带环境过程与生态修复重点实验室
Corresponding AuthorWang, Xiujun; Wang, Xiujun(Beijing Normal Univ, Coll Global Change & Earth Syst Sci, Beijing 100875, Peoples R China)
Affiliation1.Beijing Normal Univ, Coll Global Change & Earth Syst Sci, Beijing 100875, Peoples R China
2.Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, Key Lab Crop Nutr & Fertilizat, Minist Agr, Beijing 100081, Peoples R China
3.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China
4.Zhejiang A&F Univ, Key Lab Soil Pollut Bioremediat Zhejiang Prov, Hangzhou 311300, Zhejiang, Peoples R China
Recommended Citation
GB/T 7714
Shi, Huijin,Wang, Xiujun,Xu, Minggang,et al. Characteristics of soil C:N ratio and delta C-13 in wheat-maize cropping system of the North China Plain and influences of the Yellow River[J]. SCIENTIFIC REPORTS,2017,7.
APA Shi, Huijin,Wang, Xiujun,Xu, Minggang,Zhang, Haibo,Luo, Yongming,&Wang, Xiujun.(2017).Characteristics of soil C:N ratio and delta C-13 in wheat-maize cropping system of the North China Plain and influences of the Yellow River.SCIENTIFIC REPORTS,7.
MLA Shi, Huijin,et al."Characteristics of soil C:N ratio and delta C-13 in wheat-maize cropping system of the North China Plain and influences of the Yellow River".SCIENTIFIC REPORTS 7(2017).
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