气候变化领域集成服务门户(CCPortal): Effect of chemical and organic fertilization on soil carbon and nitrogen accumulation in a newly cultivated farmland

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DOI	10.1016/S2095-3119(15)61107-8
	Effect of chemical and organic fertilization on soil carbon and nitrogen accumulation in a newly cultivated farmland
	Yang Rong; Su Yong-zhong; Wang Tao; Yang Qin
发表日期	2016
ISSN	2095-3119
卷号	15 期号:3
英文摘要	Increased food demand from the rapidly growing human population has caused intensive land transition from desert to farmland in arid regions of northwest China. In this developing ecosystem, the optimized fertilization strategies are becoming an urgent need for sustainable crop productivity, efficient resources use, together with the delivery of ecosystems services including soil carbon (C) and nitrogen (N) accumulation. Through a 7-year field experiment with 9 fertilization treatments in a newly cultivated farmland, we tested whether different fertilizations had significant influences on soil C and N accumulation in this developing ecosystem, and also investigated possible mechanisms for this influence. The results showed that applying organic manure in cultivated farmland significantly increased the soil C and N accumulation rates; this influence was greater when it was combined with chemical fertilizer, accumulating 2.01 t C and 0.11 t N ha(-1) yr(-1) in the most successful fertilization treatment. These high rates of C and N accumulation were found associated with increased input of C and N, although the relationship between the N accumulation rate and N input was not significant. The improved soil physical properties was observed under only organic manure and integrated fertilization treatments, and the significant relationship between soil C or N and soil physical properties were also found in this study. The results suggest that in newly cultivated farmland, long term organic manure and integrated fertilization can yield significant benefits for soil C and N accumulation, and deliver additional influence on physical properties.
关键词	C and N accumulation sandy farmland chemical fertilizer manure soil physical property
学科领域	Agriculture
语种	英语
WOS研究方向	Agriculture, Multidisciplinary
来源期刊	JOURNAL OF INTEGRATIVE AGRICULTURE
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/111869
作者单位	Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Linze Inland River Basin Res Stn, Lanzhou 73000, Peoples R China
推荐引用方式 GB/T 7714	Yang Rong,Su Yong-zhong,Wang Tao,et al. Effect of chemical and organic fertilization on soil carbon and nitrogen accumulation in a newly cultivated farmland[J]. 中国科学院西北生态环境资源研究院,2016,15(3).
APA	Yang Rong,Su Yong-zhong,Wang Tao,&Yang Qin.(2016).Effect of chemical and organic fertilization on soil carbon and nitrogen accumulation in a newly cultivated farmland.JOURNAL OF INTEGRATIVE AGRICULTURE,15(3).
MLA	Yang Rong,et al."Effect of chemical and organic fertilization on soil carbon and nitrogen accumulation in a newly cultivated farmland".JOURNAL OF INTEGRATIVE AGRICULTURE 15.3(2016).