论文部分内容阅读
选用11个土壤剖面进行X射线分析和差热分析结果表明,土壤粘粒以无序高岭石和伊利石为主。部分土壤出现蒙脱石,次要矿物有三水铝矿、埃洛石、赤铁矿、绿泥石、蛭石以及一些混层矿物。按类型分为二组:第一组为无序高岭石—伊利石—埃洛石组合型;第二组为无序高岭石—伊利石—蒙脱石—埃洛石组合型,主要以蒙脱石多少为区别。上述特点主要受物源,局部气候,河流水文影响,异致所发育的土壤肥力有别。
Eleven soil profiles were selected for X-ray analysis and differential thermal analysis. The results show that the soil clay is dominated by disordered kaolinite and illite. Part of the soil appears montmorillonite, secondary minerals are gibbsite, halloysite, hematite, chlorite, vermiculite and some mixed mineral. According to the type is divided into two groups: the first group of disorder kaolinite - illite - halloysite combination type; the second group of disordered kaolinite - illite - montmorillonite - halloysite combination type, mainly To the difference between the number of montmorillonite. The above characteristics are mainly affected by provenance, local climate, hydrological effects of rivers, and development of different soil fertility.