Influence of nitrogen addition on the changes in nitrogen and carbon fractions in soil profiles of wheat fields

doi:10.1002/ldr.3910

	Influence of nitrogen addition on the changes in nitrogen and carbon fractions in soil profiles of wheat fields
	Wang, Lifang 1,2; Sun, Jutao 3; Kang, Juan 1; Zhang, Zhiyong 1; Shangguan, Zhouping 4; Wang, Chenyang 1,2
刊名	LAND DEGRADATION & DEVELOPMENT
	2021-03-09
页码	14
关键词	farmland nitrogen fertilization soil carbon fraction soil layer soil nitrogen fraction
ISSN号	1085-3278
DOI	10.1002/ldr.3910
通讯作者	Shangguan, Zhouping(shangguan@ms.iswc.ac.cn) ; Wang, Chenyang(xmzxwang@163.com)
英文摘要	Increasing inputs of nitrogen (N) fertilizer greatly affect the functionality of farmland carbon (C) and N cycling. Soil contains various C and N fractions that have diverse chemical and physical characteristics, and they can be used as sensitive evaluation indicators for the change in soil C and N content; however, N application's effects on the deep soil layer N and C fractions of the North China Plain remain unclear. Therefore, we investigated the changes in content, percentage, and sensitivity of N and C fractions under four N fertilization application rates in the upper 200 cm soil layer since 2012. N and C fractions in soil layers respond differently to N enrichment. For grain yield, soil organic carbon (SOC), and total nitrogen (TN) contents, the sensitivity index (SI) of N fractions was the highest at N applications of 180 and 240 kg ha(-1). SOC and TN are most active in the 0-20 cm soil layer. The SI of most C fractions in the topsoil layer were not the highest, and the SI of the N fractions was higher in the middle soil layer. Obvious leaching during the application of 300 kg ha(-1) of N fertilizer was indicated by the nitrate content. Under the experimental conditions, the 180 and 240 kg N ha(-1) applications proved to be the best for stabilization of C and N and improved crop productivity.
资助项目	National Natural Science Foundation of China[32001475] ; Henan Provincial Higher Education Key Research Project[21A210025] ; Modern Agro-industry System of Henan Province[S2010-01-G07] ; National Key Research and Development Program of China[2018YFD0300707] ; National Key Research and Development Program of China[2017YFD0300408]
WOS研究方向	Environmental Sciences & Ecology ; Agriculture
语种	英语
出版者	WILEY
WOS记录号	WOS:000626538700001
资助机构	National Natural Science Foundation of China ; Henan Provincial Higher Education Key Research Project ; Modern Agro-industry System of Henan Province ; National Key Research and Development Program of China
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/162096]
专题	中国科学院地理科学与资源研究所
通讯作者	Shangguan, Zhouping; Wang, Chenyang
作者单位	1.Henan Agr Univ, Coll Agron, Zhengzhou, Peoples R China 2.Henan Agr Univ, State Key Lab Wheat & Maize Crop Sci, Zhengzhou, Peoples R China 3.Henan Agr Univ, Coll Tobacco Sci, Zhengzhou, Peoples R China 4.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess, Yangling 712100, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Wang, Lifang,Sun, Jutao,Kang, Juan,et al. Influence of nitrogen addition on the changes in nitrogen and carbon fractions in soil profiles of wheat fields[J]. LAND DEGRADATION & DEVELOPMENT,2021:14.
APA	Wang, Lifang,Sun, Jutao,Kang, Juan,Zhang, Zhiyong,Shangguan, Zhouping,&Wang, Chenyang.(2021).Influence of nitrogen addition on the changes in nitrogen and carbon fractions in soil profiles of wheat fields.LAND DEGRADATION & DEVELOPMENT,14.
MLA	Wang, Lifang,et al."Influence of nitrogen addition on the changes in nitrogen and carbon fractions in soil profiles of wheat fields".LAND DEGRADATION & DEVELOPMENT (2021):14.