吉林省主要土壤胶散复合体粘土矿物XRD物相研究  

Research on XRD Phase for Clay Minerals in Organo-Mineral Complex of Major Soil from Jilin Province, China

作　　者：张志丹[1] 罗香丽[1] 王继红[1] 焉莉[1] 高雪莹[1] 程程[1] 丛高[1] 刘淑霞[1] 

机构地区：[1]吉林农业大学资源与环境学院,吉林省生态恢复与生态系统管理省部共建国家重点实验室培育基地,吉林长春130118

出　　处：《矿物学报》2016年第1期97-102,共6页Acta Mineralogica Sinica

基　　金：国家自然科学基金项目(批准号:41071160);国家科技支撑计划(编号:2013BAC09B01);吉林省科技厅项目(编号:20110749;20130522078JH;20110202;201205057)

摘　　要：以吉林省主要耕作土壤(白浆土、黑土和黑钙土)为研究对象,采用X射线衍射(XRD)分析方法,研究土壤胶散复合体(G0、G1、G2)中粘粒矿物组成特征,探讨不同土壤类型下胶散复合体中粘粒矿物的演化规律及形成机理。结果表明:对3种不同土壤类型而言,各组复合体含量均呈G0>G1>G2的趋势,且G0/G1、G0/G2均大于1。对胶散复合体不同组分而言,除G0组的含量大小顺序为黑土>白浆土>黑钙土外,G1、G2、(G0+G1+G2)组均为白浆土>黑土>黑钙土。XRD物相分析表明,主要耕作土壤胶散复合体粘粒中均以2∶1型粘粒矿物为主,且均含有蒙脱石、蛭石、伊利石、高岭石和石英等;黑土和黑钙土复合体中粘粒以蒙脱石、伊利石为主,白浆土则以蛭石、伊利石为主。土壤胶散复合体不同矿物的演变存在差异,3组复合体受风化影响的顺序为G0>G1>G2。The thesis selected the major cultivated soil（albic soil, black soil, chernozem） from Jilin Province, China as the research object, and used the XRD analysis method to study the composition characteristic of clay minerals in organo-mineral complex of soil（G0, G1 and G2）, and deeply explored the evolution law and formation mechanism of clay minerals in organo-mineral complex of different soil types. Results show that the content of each complex was on a tendency of G0〉G1〉G2 for 3 different soil types, and the values of G0/G1 and G0/G2 were higher than 1.For the different components in organo-mineral complex, the order of the contents in group G1, G2 and（G0＋G1＋G2） was albic soil black soil chernozem except group G0, and the order of which was black soil〉 albic soil 〉chernozem. The XRD phase analysis indicates that clay minerals in organo-mineral complex of major cultivated soil were dominated by the 2∶1 clay mineral, and contained minerals such as montmorillonite, vermiculite, illite, kaolinite and quartz. Clay minerals in black soil and chernozem complex were dominated by montmorillonite and illite, while the clay minerals in albic soil were dominated by vermiculite and illite. The evolutions of various minerals in the three groups of complex were different from each other, and the order of effect by weathering on organo-mineral complex of soil was G0〉G1〉G2.

关 键 词：耕作土壤 胶散复合体 粘土矿物 XRD分析 

分 类 号：P579[天文地球—矿物学] S153.6[天文地球—地质学]