Vertical distribution of soil total nitrogen and soil total phosphorus in the critical zone on the Loess Plateau, China

doi:10.1016/j.catena.2018.04.019

ISWC OpenIR > 水保所科研产出--SCI > 2018--SCI

	Vertical distribution of soil total nitrogen and soil total phosphorus in the critical zone on the Loess Plateau, China
	Jiangbo Qiao 1; Yuanjun Zhu 2; Xiaoxu Jia 3; Laiming Huang 3; Ming'an Shao 2,3; Zhu, YJ (reprint author), Northwest A&F Univ, State Key Lab Soil Eros & Dryland Agr Loess Plate, Yangling 712100, Shaanxi, Peoples R China.
文章类型	Article
	2018
发表期刊	CATENA
ISSN	0341-8162
通讯作者邮箱	zhuyuanjun@foxmail.com
卷号	166 页码:310-316
摘要	It is important to determine the vertical distributions of soil total nitrogen (SIN) and soil total phosphorus (STP) as well as the factors that influence them in the Earth's critical zone (CZ) in order to understand the N/P cycle in the CZ. However, few data are available regarding the vertical distributions of STN and STP in deep soil profiles in the CZ. Thus, this study investigated the vertical distributions of the STN and STP as well as related factors in a deep soil profile on the Loess Plateau, China. Soil drilling was used to collect 703 soil samples throughout the soil profile from five sites. The STN decreased initially at all of the sampling sites (except at Shenmu), before fluctuating with increasing depth throughout the profile, whereas the STP exhibited a fluctuating trend at all sites. The mean STN and STP concentrations ranged from 0.12 g kg(-1) to 0.25 g kg(-1) and from 0.45 g kg(-1) to 0.58 g kg(-1), respectively. The adjusted r(2) values based on stepwise multiple linear regressions for STN and SIP ranged from 35% to 83% and from 4% to 17%, respectively, and thus, SIN was explained better by the measured soil variables compared with STP. The mean STN and STP stocks ranged from 1.87 to 3.90 mg ha(-1) and from 6.75 to 9.09 mg ha(-1), respectively. The results of this study facilitate evaluations of STN and STP stocks and studies of the N/P cycle in the CZ on the Loess Plateau.
关键词	Earth's Critical Zone Nitrogen Phosphorus Vertical Distribution
学科领域	Geology ; Agriculture ; Water Resources
DOI	10.1016/j.catena.2018.04.019
收录类别	SCI
出版地	PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
语种	英语
WOS记录号	WOS:000434238800030
出版者	ELSEVIER SCIENCE BV
项目资助者	National Key Research and Development Plan [2016YFC0501706] ; National Key Research and Development Plan [2016YFC0501706] ; National Natural Science Foundation of China [41571130081, 41371242, 41530854] ; National Natural Science Foundation of China [41571130081, 41371242, 41530854]
引用统计
文献类型	期刊论文
条目标识符	sbir.nwafu.edu.cn/handle/361005/8222
专题	水保所科研产出--SCI_2018--SCI
通讯作者	Zhu, YJ (reprint author), Northwest A&F Univ, State Key Lab Soil Eros & Dryland Agr Loess Plate, Yangling 712100, Shaanxi, Peoples R China.
作者单位	1.Northwest A&F Univ, Coll Resources & Environm, Yangling 712100, Shaanxi, Peoples R China 2.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Agr Loess Plate, Yangling 712100, Shaanxi, Peoples R China 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China 4.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Jiangbo Qiao,Yuanjun Zhu,Xiaoxu Jia,et al. Vertical distribution of soil total nitrogen and soil total phosphorus in the critical zone on the Loess Plateau, China[J]. CATENA,2018,166:310-316.
APA	Jiangbo Qiao,Yuanjun Zhu,Xiaoxu Jia,Laiming Huang,Ming'an Shao,&Zhu, YJ .(2018).Vertical distribution of soil total nitrogen and soil total phosphorus in the critical zone on the Loess Plateau, China.CATENA,166,310-316.
MLA	Jiangbo Qiao,et al."Vertical distribution of soil total nitrogen and soil total phosphorus in the critical zone on the Loess Plateau, China".CATENA 166(2018):310-316.

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