IMR OpenIR
Dynamics of Soil Organic Carbon Fractions and Aggregates in Vegetable Cropping Systems
Alternative TitleDynamics of Soil Organic Carbon Fractions and Aggregates in Vegetable Cropping Systems
Liang ChengHua; Yin Yan; Chen Qian
2014
Source PublicationPEDOSPHERE
ISSN1002-0160
Volume24Issue:5Pages:605-612
AbstractFertilisers 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.
Other AbstractFertilisers 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 SOC 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 (cPOM) into fine POM (fPOM) 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.
KeywordNITROGEN-FERTILIZATION CULTIVATED SOILS C SEQUESTRATION MATTER TILLAGE STORAGE IMPACT AGRICULTURE PARTICULATE MANAGEMENT long-term fertilization physical fractionation soil aggregates soil organic matter
Indexed ByCSCD
Language英语
Funding Project[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]
CSCD IDCSCD:5259645
Citation statistics
Cited Times:3[CSCD]   [CSCD Record]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/150989
Collection中国科学院金属研究所
Affiliation中国科学院金属研究所
Recommended Citation
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.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Liang ChengHua]'s Articles
[Yin Yan]'s Articles
[Chen Qian]'s Articles
Baidu academic
Similar articles in Baidu academic
[Liang ChengHua]'s Articles
[Yin Yan]'s Articles
[Chen Qian]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Liang ChengHua]'s Articles
[Yin Yan]'s Articles
[Chen Qian]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.