CHEN Xiaodong, WU Jinggui, FAN Wei, et al. Effect of Organic Materials on the Characteristics and Stability of Micro-aggregates in the Native Saline-alkali Soil[J]. 2020, 34(2): 201-207.
DOI:
CHEN Xiaodong, WU Jinggui, FAN Wei, et al. Effect of Organic Materials on the Characteristics and Stability of Micro-aggregates in the Native Saline-alkali Soil[J]. 2020, 34(2): 201-207. DOI: 10.13870/j.cnki.stbcxb.2020.02.029.
Effect of Organic Materials on the Characteristics and Stability of Micro-aggregates in the Native Saline-alkali Soil
为了研究不同有机物料对原生盐碱土微团聚体粒径分布状况及不同粒径微团聚体间有机碳含量的影响,以施用有机物料的原生盐碱土为试验对象,设置空白处理(CK)、颗粒状秸秆处理(GW)、正常玉米秸秆处理(CS)、牧草处理(GS)和羊粪处理(SM),采用大田试验与室内分析相结合的方法,研究不同有机物料施用下土壤微团聚体的粒径分布状况及不同粒径微团聚体间有机碳含量,分析不同粒径微团聚体间有机碳对土壤微团聚体稳定性的贡献。结果表明,施用有机物料各处理较CK处理均增加土壤2~0.25 mm的团聚体含量,增幅为9.02%~20.37%,其大小排序为GW > SM > GS > CS > CK。对于其他粒径微团聚体分布影响则有所差异。总体来说,有机物料处理增加了土壤大粒径团聚体含量,减少了土壤小粒径团聚体含量。不同有机物料的施用均能增加各粒径土壤微团聚体间有机碳含量。同时,有机物料的施用增加了土壤微团聚体的稳定性,采用回归模型分析、相关分析、冗余分析以及主成分因子分析,表明施用颗粒秸秆更有利于增加土壤微团聚体的稳定性。
Abstract
In order to study the effect of different organic materials on the distribution of micro-aggregates in native saline soils and the adsorption capacity of different fractional micro-aggregates on organic carbon
the native saline-alkali soils were used as test objects. The field experiment included the control treatment (CK)
granular straw treatment (GW)
normal corn straw treatment (CS)
forage treatment (GS) and sheep manure treatment (SM). Combined with laboratory analysis
the particle size distribution of soil micro-aggregates and the content of organic carbon between different size micro-aggregates were studied. The results showed that the application of organic materials increased the contents of micro-aggregates of 2~0.25 mm in soil compared with CK
with an increase of 9.02%~20.37% and an order of GW > SM > GS > CS > CK. There were some differences in the effects on the micro-aggregates with other particle sizes. In general
organic material application increased the large particle size soil micro-aggregates and reduced the soil micro-aggregates with small particle size. The application of different organic materials could increase the organic carbon content of soil micro-aggregates of various particle sizes. At the same time
the application of organic materials increased the stability of soil micro-aggregates. The regression model analysis
correlation analysis and redundant analysis and principal component analysis were used for factor analysis. The results showed that the application of granular straw was more beneficial to increase the stability of soil microaggregates.
Huang S, Peng X X, Huang Q R, et al. Soil aggregation and organic carbon fractions affected by long-term fertilization in a red soil of subtropical China[J].Geoderma,2009,154(3):364-369.
Six J, Elliott E T, Paustian K, et al. Aggregation and soil organic matter accumulation in cultivated and native grassland soils[J].Soil Science Society of America Journal,1998,62(5):1367.
Peth S, Horn R, Beckmann F, et al. Three dimensional quantification of intra aggregate pore space features using synchrotron radiation based microtomography[J].Soil Science Society of America Journal,2008,72(4):897-907.
Sodhi G P S, Beri V, Benbi D K. Soil aggregation and distribution of carbon and nitrogen in different fractions under long term application of compost in rice-wheat system[J].Soil and Tillage Research,2008,103(2):412-418.
Wang S Q, Li T X, Zheng Z C. Effect of tea plantation age on the distribution of soil organic carbon and nutrient within micro-aggregates in the hilly region of western Sichuan, China[J].Ecological Engineering,2016,90:113-119.
Jastrow J D. Soil aggregate formation and the accrual of particulate and mineral associated organic matter[J].Soil Biology and Biochemistry,1996,28(4/5):665-676.
Carvalho A M, Bustamante M M C, Alcântara F A, et al. Characterization by solid-state CPMAS
13
C NMR spectroscopy of decomposing plant residues in conventional and no-tillage systems in Central Brazil[J].Soil and Tillage Research,2008,102(1):144-150.
Hu J, Wu J G, Sharaf A, et al. Effects of organic wastes on structural characterizations of fulvic acid in semiarid soil under plastic mulched drip irrigation[J].Chemosphere,2019,234:830-836.
Effects of Aluminum Sulfate and Organic Materials on Organic Carbon Composition and Complex in Saline-alkali Soils
Soil Aggregates and Organic Carbon Distribution Characteristics Based on Long-Term Organic Substitution
Impacts of Slope Erosion-Deposition Processes on Soil Organic Carbon Fractions in Black Soil Region of Northeast China
Organic Carbon Distribution and Molecular Structure Characteristics of Soil Aggregates in Fuding Tea Garden
Vertical Distribution Characteristics of Soil Labile Organic Carbon in Ruoergai Wetland
Related Author
LIU Xiangyu
WANG Liqun
WANG Hongbin
ZHAO Xingmin
HUANG Ning
SONG Hao
CHENG Shirong
SUN Wanchun
Related Institution
College of Resources and Environment, Jilin Agricultural University, Key Laboratory of Sustainable Utilization of Soil Resources in the Commodity Grain Bases in Jilin Province
Zhejiang Key Laboratory of Soil Remediation and Quality Improvement
Institute of Environment Resource and Soil Fertilizer, Zhejiang Academy of Agricultural Sciences
Heilongjiang Province Key Laboratory of Soil and Water Conservation, Heilongjiang Province Hydraulic Research Institute
Jinyun Mountain Three-Gorges Reservoir Area (Chongqing) Forest Ecosystem Research Station, Beijing Forestry University