Effects of Long-Term Fertilization on Soil Organic Carbon and Nitrogen in a Highland Agroecosystem

doi:10.1016/S1002-0160(17)60386-2

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	Effects of Long-Term Fertilization on Soil Organic Carbon and Nitrogen in a Highland Agroecosystem
	Hao Yajun 3; Wang Yuhong 1,2; Chang Qingrui 3; Wei Xiaorong 1,2; Wei, XR (reprint author), Chinese Acad Sci, Inst Soil & Water Conservat, Yangling 712100, Peoples R China.; Wei, XR (reprint author), Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Peoples R China.; Wei, XR (reprint author), Chinese Acad Sci, Minist Water Resources, Yangling 712100, Peoples R China.
刊名	PEDOSPHERE
	2017
卷号	27 期号:4 页码:725-736
关键词	Chemical Fertilizer Continuous Winter Wheat Cropping Legume-grain Rotation Manure Semiarid Cropping System Soil Aggregates
ISSN号	1002-0160
DOI	10.1016/S1002-0160(17)60386-2
文献子类	Article
英文摘要	The effects of fertilization on the distributions of organic carbon (OC) and nitrogen (N) in soil aggregates and whether these effects vary with cropping system have not been well addressed. Such information is important for understanding the sequestration of OC and N in agricultural soils. In this study, the distributions of OC and N associated with soil aggregates were analyzed in different fertilization treatments in a continuous winter wheat cropping system and a legume-grain rotation system in a 27-year field experiment, to understand the effects of long-term fertilization on the distributions of OC and N in aggregates and to examine the recovery of soil OC and N in a highland agroecosystem. Manure fertilizer significantly decreased soil bulk density but increased the amount of coarse fractions and their associated OC and N stocks in the soils of both systems. Fertilizers N + phosphorus (P) and manure had similar effects on total soil OC and N stocks in both systems, but had larger effects on the OC and N stocks in > 2 mm aggregates in the legume-grain rotation system than in the continuous winter wheat system. The application of P increased the OC and N stocks in > 2 mm aggregates and decreased the loss of N from chemical fertilizers in the legume-grain rotation system. The results from this study suggested that P fertilizer should be applied for legume-included cropping systems and that manure with or without chemical fertilizers should be applied for semiarid cropping systems in order to enhance OC and N accumulation in soils.
学科主题	Agriculture
URL标识	查看原文
出版地	BEIJING
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000408785600007
资助机构	National Natural Science Foundation of China [41571296, 41622-105, 41571130082]; Northwest A&F University, China [2452017028]; State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, China [A314021403-Q5] ; National Natural Science Foundation of China [41571296, 41622-105, 41571130082]; Northwest A&F University, China [2452017028]; State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, China [A314021403-Q5] ; National Natural Science Foundation of China [41571296, 41622-105, 41571130082]; Northwest A&F University, China [2452017028]; State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, China [A314021403-Q5] ; National Natural Science Foundation of China [41571296, 41622-105, 41571130082]; Northwest A&F University, China [2452017028]; State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, China [A314021403-Q5]
内容类型	期刊论文
源URL	[http://ir.iswc.ac.cn/handle/361005/7949]
专题	水保所科研产出--SCI_2017--SCI
通讯作者	Wei, XR (reprint author), Chinese Acad Sci, Inst Soil & Water Conservat, Yangling 712100, Peoples R China.; Wei, XR (reprint author), Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Peoples R China.; Wei, XR (reprint author), Chinese Acad Sci, Minist Water Resources, Yangling 712100, Peoples R China.
作者单位	1.Chinese Acad Sci, Inst Soil & Water Conservat, Yangling 712100, Peoples R China 2.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Peoples R China 3.Northwest A&F Univ, Coll Nat Resources & Environm, Yangling 712100, Peoples R China 4.Chinese Acad Sci, Minist Water Resources, Yangling 712100, Peoples R China
推荐引用方式 GB/T 7714	Hao Yajun,Wang Yuhong,Chang Qingrui,et al. Effects of Long-Term Fertilization on Soil Organic Carbon and Nitrogen in a Highland Agroecosystem[J]. PEDOSPHERE,2017,27(4):725-736.
APA	Hao Yajun.,Wang Yuhong.,Chang Qingrui.,Wei Xiaorong.,Wei, XR .,...&Wei, XR .(2017).Effects of Long-Term Fertilization on Soil Organic Carbon and Nitrogen in a Highland Agroecosystem.PEDOSPHERE,27(4),725-736.
MLA	Hao Yajun,et al."Effects of Long-Term Fertilization on Soil Organic Carbon and Nitrogen in a Highland Agroecosystem".PEDOSPHERE 27.4(2017):725-736.