Increased Soil Aggregate Stability by Altering Contents and Chemical Composition of Organic Carbon Fractions via Seven Years of Manure Addition in Mollisols

doi:10.3390/agriculture13010088

	Increased Soil Aggregate Stability by Altering Contents and Chemical Composition of Organic Carbon Fractions via Seven Years of Manure Addition in Mollisols
	Zhou, Meng 1,2; Xiao, Yang 1,2; Xiao, Leilei3 ; Li, Yansheng 1; Zhang, Xingyi 1; Cruse, Richard M.4; Liu, Xiaobing 1,2
发表期刊	AGRICULTURE-BASEL
	2023
卷号	13 期号:1 页码:19
关键词	molecular characterization particulate organic matter silt and clay fractions Fourier transform infrared spectroscopy aromatic components physical protection
DOI	10.3390/agriculture13010088
通讯作者	Liu, Xiaobing([email protected])
英文摘要	Mollisols include an abundance of soil organic carbon (SOC) which is easily influenced by fertilization management. Manure addition could enhance soil aggregate stability; however, the dominating factor affecting its stabilization remains controversial. The fertilization practices were initiated in 2012 to investigate the influences of different fertilization managements on the contents and molecular characterization of organic carbon (OC) fractions, and to clarify the underlying mechanism of soil aggregate stability change. NoF (non-fertilizer), CF (only chemical fertilizer), CF + DM (chemical fertilizer plus single dairy manure at 15 t ha(-1)), and CF + 2DM (chemical fertilizer plus double dairy manure at 30 t ha(-1)) treatments were established. This research was aimed at exploring the potential mechanism that affects aggregate stability in Mollisols through the variation of contents and chemical composition of OC fractions, and screening out the appropriate fertilization practice on promoting SOC stabilization and crop yield under 7-year manure addition. Compared to CF, 7-year manure addition significantly enhanced SOC content by 17.4-35.9% at 0-10 cm depth, which was evidenced from the contribution of increased aromatic compounds with 4.3-19.9%. Simultaneously, compared with CF, CF + DM and CF + 2DM both significantly enhanced dissolved organic carbon and easily oxidizable organic carbon contents by 12.5-37.7% at a 0-30 cm soil layer. In regard to soil aggregates, the increased OC content and mass percentage of macroaggregates, and the decreased mass percentage of free microaggregates both improved aggregate stability under manure addition at 0-30 cm soil layer, which was proven to be the increment in mean weight diameter (MWD) and geometric mean diameter (GMD) values by 17.6-22.1%. Moreover, CF + DM and CF + 2DM raised aromatic compound amounts of POM fractions within macroaggregates [M(c)POM] by 5.6-11.6% and within free microaggregates (Fm-POM) by 4.3-10%. Furthermore, CF + DM and CF + 2DM both significantly increased maize yield by 5.7% and 4.2% compared to CF, but no significant difference was observed between CF + DM and CF + 2DM treatments. Collectively, physical protection through the occlusion within aggregates of POM might be the central mechanism for soil aggregate stability of manure addition in Mollisols. The manure addition of 15 t ha(-1) was the effective management method to enhance SOC stabilization and crop yield in Mollisols.
资助机构	National Key R&D Program of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Professional Association of the Alliance of International Science Organizations
收录类别	SCI
语种	英语
关键词[WOS]	TERM FERTILIZER EXPERIMENT ; MATTER DECOMPOSITION ; CATTLE MANURE ; NITROGEN ; SEQUESTRATION ; AMENDMENTS ; MANAGEMENT ; DEPOSITION ; DYNAMICS ; FOREST
研究领域[WOS]	Agriculture
WOS记录号	WOS:000914317400001
引用统计	被引频次：5[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/32577
专题	中国科学院海岸带环境过程与生态修复重点实验室中国科学院海岸带环境过程与生态修复重点实验室_海岸带环境过程实验室
通讯作者	Liu, Xiaobing
作者单位	1.Chinese Acad Sci, Northeast Inst Geog & Agroecol, State Key Lab Black Soils Conservat & Utilizat, Harbin 150081, Peoples R China 2.Northeast Agr Univ, Coll Resources & Environm, Harbin 150030, Peoples R China 3.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China 4.Iowa State Univ, Dept Agron, Ames, IA USA
推荐引用方式 GB/T 7714	Zhou, Meng,Xiao, Yang,Xiao, Leilei,et al. Increased Soil Aggregate Stability by Altering Contents and Chemical Composition of Organic Carbon Fractions via Seven Years of Manure Addition in Mollisols[J]. AGRICULTURE-BASEL,2023,13(1):19.
APA	Zhou, Meng.,Xiao, Yang.,Xiao, Leilei.,Li, Yansheng.,Zhang, Xingyi.,...&Liu, Xiaobing.(2023).Increased Soil Aggregate Stability by Altering Contents and Chemical Composition of Organic Carbon Fractions via Seven Years of Manure Addition in Mollisols.AGRICULTURE-BASEL,13(1),19.
MLA	Zhou, Meng,et al."Increased Soil Aggregate Stability by Altering Contents and Chemical Composition of Organic Carbon Fractions via Seven Years of Manure Addition in Mollisols".AGRICULTURE-BASEL 13.1(2023):19.