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当前位置: 首页 > 文章 > 2种母岩发育的地带性土壤中粘土矿物的组成特点 华中农业大学学报 2015,34 (3) 51-58
Position: Home > Articles > Characteristics of clay minerals in the zonal soil from two kinds of parent rock Journal of Huazhong Agricultural University 2015,34 (3) 51-58

2种母岩发育的地带性土壤中粘土矿物的组成特点

作  者：
张志毅;黄丽;卢胜;付庆灵
单  位：
华中农业大学农业部长江中下游耕地保育重点实验室
关键词：
气候;花岗岩;片麻岩;粘土矿物;地带性土壤
摘  要：
采取中国从北到南由花岗岩和片麻岩发育的几种地带性土壤(棕壤、黄棕壤、红壤和砖红壤),分析其<2μm粘粒的化学组成和粘土矿物组成特点,探明气候条件对土壤粘土矿物组成的影响。结果表明:在棕壤中以2∶1型粘土矿物为主,主要为伊利石,其次为蛭石和高岭石,并含有少量蒙脱石;黄棕壤中高岭石和蛭石占主要部分,其次为伊利石和蒙脱石;红壤中蛭石和蒙脱石消失,主要粘土矿物类型为高岭石,其次为伊利石和1.4nm过渡矿物。在热带砖红壤中1.4nm过渡矿物和蛭石消失,高岭石含量超过90%,其次为伊利石及少量三水铝石。粘土矿物的地带性差异主要受气候条件的影响,由北到南,随着温度和降雨量增加,土壤中的高岭石和蒙脱石含量增加,蛭石的含量降低;其中年均温和年均降雨量与高岭石含量存在显著正相关性,与蛭石和蒙脱石含量呈显著负相关性(P<0.05)。
译  名：
Characteristics of clay minerals in the zonal soil from two kinds of parent rock
作  者：
ZHANG Zhi-yi;HUANG Li;LU Sheng;FU Qing-ling;Key Laboratory of Arable Land Conservation,Ministry of Agriculture,Huazhong Agricultural University;
关键词：
climate;;granite;;gneiss;;clay minerals;;the zonal soil
摘  要：
An investigation was made from north to south in china to study the soils' chemical and clay mineral composition characteristics of< 2μm clay.Four different types of soils(including brown earths,yellow-brown earths,red earths and humid-thermo ferralitic)developed from granite and gneiss were collected to find some clues to prove that climate conditions affect the composition of soil clay minerals in some degrees.The results showed that in brown earths,the clay minerals were mainly 2∶1type.Illite was a ubiquitous mineral,followed by vermiculite and kaolinite.A small amount of montmorillonite did exist.In yellow-brown earths,kaolinite and vermiculite occupied the main part,followed by illite and montmorillonite.In red earths,vermiculite and montmorillonite disappeared and was substituted by kaolinite,illite and 1.4nm intergrade minerals.1.4nm intergrade minerals and vermiculite did not exist in the humid-thermo ferralitic.The content of kaolinite was up to 90%,followed by illite and a small amount of gibbsite.Annual average temperature and average rainfall were significantly positively correlated with kaolinite,and significantly negatively correlated with vermiculite and montmorillonite(P< 0.05).

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