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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

文献类型：期刊论文

作者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)
刊名SCIENTIFIC REPORTS
出版日期2017-12-04
卷号7
ISSN号2045-2322
DOI10.1038/s41598-017-17060-3
产权排序第3完成单位
文献子类Article
英文摘要To 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.
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WOS关键词LONG-TERM FERTILIZATIONS ; ORGANIC-CARBON ; TOTAL NITROGEN ; INORGANIC CARBON ; DYNAMICS ; MATTER ; DECOMPOSITION ; SEQUESTRATION ; ABUNDANCE ; TURNOVER
WOS研究方向Science & Technology - Other Topics
语种英语
WOS记录号WOS:000417025400035
资助机构Beijing Normal University(310232102) ; National Key Basic Research Program(2013CB956602) ; Fundamental Research Funds for the Central Universities
源URL[http://ir.yic.ac.cn/handle/133337/23556]  
专题烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
烟台海岸带研究所_污染过程与控制实验室
通讯作者Wang, Xiujun; Wang, Xiujun(Beijing Normal Univ, Coll Global Change & Earth Syst Sci, Beijing 100875, Peoples R China)
作者单位1.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
推荐引用方式
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).

入库方式： OAI收割

来源：烟台海岸带研究所

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