Dynamics of Soil Organic Carbon Fractions and Aggregates in Vegetable Cropping Systems

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	Dynamics of Soil Organic Carbon Fractions and Aggregates in Vegetable Cropping Systems
	Liang ChengHua; Yin Yan; Chen Qian
刊名	PEDOSPHERE
	2014
卷号	24 期号:5 页码:605-612
关键词	NITROGEN-FERTILIZATION CULTIVATED SOILS C SEQUESTRATION MATTER TILLAGE STORAGE IMPACT AGRICULTURE PARTICULATE MANAGEMENT long-term fertilization physical fractionation soil aggregates soil organic matter
ISSN号	1002-0160
其他题名	Dynamics of Soil Organic Carbon Fractions and Aggregates in Vegetable Cropping Systems
英文摘要	Fertilisers significantly affect crop production and crop biomass inputs to soil organic carbon (SOC). However, the long-term effects of fertilisers on C associated with aggregates are not yet fully understood. Based on soil aggregate and SO'C fractionation analysis, this study investigated the long-term effects of organic manure and inorganic fertilisers on the accumulation and change in SOC and its fractions, including the C concentrations of free light fraction, intra-aggregate particulate organic matter (POM) and intra-aggregate mineral-associated organic matter (MOM). Long-term manure applications improved SOC and increased the concentrations of some C fractions. Manure also accelerated the decomposition of coarse POM (cP0M) into fine POM (fP0M) and facilitated the transformation of fPOM encrustation into intra-microaggregate POM within macroaggregates. However, the application of inorganic fertilisers was detrimental to the formation of fPOM and to the subsequent encrustation of fPOM with clay particles, thus inhibiting the formation of stable microaggregates within macroaggregates. No significant differences were observed among the inorganic fertiliser treatments in terms of C concentrations of MOM, intra-microaggregate MOM within macroaggregate (imMMOM) and intra-microaggregate MOM (imMOM). However, the long-term application of manure resulted in large increases in C concentrations of MOM (36.35%), imMMOM (456.31%) and imMOM (19.33%) compared with control treatment.
资助项目	[National Natural Science Foundation of China] ; [Fifth Session of Geping Green Action-123 Project of Liaoning Environmental Research and Education] ; [Innovative Graduate Training Program of Shenyang Agricultural University of China]
语种	英语
CSCD记录号	CSCD:5259645
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/150988]
专题	金属研究所_中国科学院金属研究所
作者单位	中国科学院金属研究所
推荐引用方式 GB/T 7714	Liang ChengHua,Yin Yan,Chen Qian. Dynamics of Soil Organic Carbon Fractions and Aggregates in Vegetable Cropping Systems[J]. PEDOSPHERE,2014,24(5):605-612.
APA	Liang ChengHua,Yin Yan,&Chen Qian.(2014).Dynamics of Soil Organic Carbon Fractions and Aggregates in Vegetable Cropping Systems.PEDOSPHERE,24(5),605-612.
MLA	Liang ChengHua,et al."Dynamics of Soil Organic Carbon Fractions and Aggregates in Vegetable Cropping Systems".PEDOSPHERE 24.5(2014):605-612.