文章摘要
高雪莹,孙元宏,赵兴敏,隋标,王鸿斌,赵兰坡.添加玉米秸秆对黑钙土重组有机碳含量及有机无机复合的影响[J].农业环境科学学报,2017,36(9):1829-1835.
添加玉米秸秆对黑钙土重组有机碳含量及有机无机复合的影响
Effects of adding corn straw on heavy fraction organic matter and organic-mineral complex of chernozem
投稿时间:2017-02-19  
DOI:10.11654/jaes.2017-0186
中文关键词: 黄土母质  红土母质  黑钙土  重组有机碳  有机无机复合
英文关键词: loess parent material  laterite parent material  chernozem  heavy fraction organic matter(HFOM)  organic-mineral complex
基金项目:国家自然科学基金项目(41403077);吉林省科技厅科技支撑计划项目(20130204050SF)
作者单位E-mail
高雪莹 吉林农业大学资源与环境学院, 吉林省商品粮基地土壤资源可持续利用重点实验室, 长春 130118  
孙元宏 吉林农业大学资源与环境学院, 吉林省商品粮基地土壤资源可持续利用重点实验室, 长春 130118  
赵兴敏 吉林农业大学资源与环境学院, 吉林省商品粮基地土壤资源可持续利用重点实验室, 长春 130118  
隋标 吉林农业大学资源与环境学院, 吉林省商品粮基地土壤资源可持续利用重点实验室, 长春 130118  
王鸿斌 吉林农业大学资源与环境学院, 吉林省商品粮基地土壤资源可持续利用重点实验室, 长春 130118  
赵兰坡 吉林农业大学资源与环境学院, 吉林省商品粮基地土壤资源可持续利用重点实验室, 长春 130118 zhaolanpo12@163.com 
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中文摘要:
      为了科学评价土壤的固碳性能和潜力,以黄土和红土母质及其发育的黑钙土为供试土壤,在田间调查的基础上,分别采集耕层和母质层土壤样品,研究添加有机物料后土壤重组有机碳含量、有机无机复合状况的变化。针对东北玉米主产区黑钙土秸秆还田技术推广中亟待阐明的科学问题,通过室内恒温培养试验模拟了一个作物生长期内,黑钙土母质和耕层土壤添加不同比例的玉米秸秆后,重组有机碳含量和有机无机复合状况的变化。结果表明:随秸秆添加量的增加,供试耕层土壤和母质中的重组有机碳含量、原土有机碳复合量均呈同步增加趋势,但原土有机碳复合度呈逐步下降趋势。在耕层土壤中,原土有机碳含量越低的土壤,其重组有机碳增量和原土有机碳复合量增率越大,说明原土有机碳含量低的土壤具有更大的固碳潜力。母质层土壤重组有机碳增量、原土有机碳复合量增率和追加复合量均大于耕层土壤,说明母质的固碳潜力远大于耕层土壤,且红土母质的固碳潜力更强。
英文摘要:
      Based on information from a previous field investigation, soil samples from loess parent material, laterite parent material, and their corresponding developed topsoils of chernozem were collected. It is important to evaluate soil carbon sequestration and potential scientifically by studying the changes in the heavy fraction organic matter(HFOM) and organic-mineral complex after organic materials are added. Considering the scientific problems that need to be clarified for the technology of returning straw to chernozem in the main maize producing areas of Northeast China, the changes in the HFOM and organic-mineral complex were studied by adding different proportions of corn straw to the parent materials and their corresponding developed topsoils of chernozem in a crop growing period through laboratory incubation experimentation. The results showed that the HFOM increment, compound quantity(QC), and additional compound quantity(QAC) in parent materials and their corresponding developed topsoils increased with an increase in the amount of straw added, but compound degree(DC) and additional compound degree(DAC) showed a decreasing trend.For the topsoil, the increment of HFOM and the QC growth rate decreased with increasing organic carbon content, which indicates that soil with low organic carbon content has higher carbon sequestration potential. Although the effect of organic carbon content on QAC had no obvious regularity, the QAC of the two kinds of soil parent materials with very low organic carbon content were higher than that of their corresponding developed topsoils. At the same time, the increment of HFOM and the increase rate of QC in the parent material were much greater than that of their corresponding developed topsoils, and those of the laterite parent material were higher than those of the loess parent material. This indicated the carbon sequestration potential of the parent material was much higher than that of their corresponding developed topsoils, and the carbon sequestration potential of the laterite parent material was greater than that of the loess parent material.
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