湘东地区花岗岩红壤在中国土壤系统分类中的归属
发布时间：2019-06-03 04:59
【摘要】：为了研究湖南省东部花岗岩红壤在中国土壤系统分类中的归属,选取湘东地区8个由花岗岩母质发育的典型土壤剖面,在对其成土环境、剖面形态特征及其理化性质进行研究的基础上,按照中国土壤系统分类方案,检索出了其诊断层和诊断特性,据此确定了其在中国系统分类中的归属。结果表明,供试的8个土壤剖面包含了淡薄表层、暗瘠表层、低活性富铁层、黏化层等9个诊断层和诊断特性,其在中国系统分类体系中的位置分别为:淋溶土、富铁土和雏形土3个土纲;湿润淋溶土、湿润富铁土和湿润雏形土3个亚纲;简育湿润富铁土、铝质湿润淋溶土、酸性湿润淋溶土和铝质湿润雏形土4个土类;普通铝质湿润雏形土、普通简育湿润富铁土、普通铝质湿润淋溶土、普通酸性湿润淋溶土4个亚类;按照土族和土系划分标准,建立了黏壤质硅质混合型酸性热性-普通铝质湿润雏形土等6个土族和脱甲系(43-CS18)等8个土系。实践表明,目前的土族土系划分标准适用于供试土壤基层分类单元划分。与土壤发生学分类结果相比,土壤系统分类结果更能定量反映出湘东花岗岩母质发育土壤性状的差异,进而客观反映出土壤发育阶段和土壤类型的差异。
[Abstract]:In order to study the classification of granite red soil in eastern Hunan Province in China, eight typical soil profiles developed by granite parent material in eastern Hunan were selected. Based on the study of the morphological characteristics and physical and chemical properties of the section, according to the systematic classification scheme of soil in China, the diagnostic faults and diagnostic characteristics were searched, and the classification of the profile in the systematic classification of China was determined. The results showed that the eight soil profiles included nine diagnostic faults and diagnostic characteristics, such as thin surface layer, dark barren surface layer, low active iron rich layer and viscous layer, and their positions in the systematic classification system of China were as follows: leached soil, There are three soil classes: iron-rich soil and rudimentary soil. There are three subclasses of moist leachate soil, moist iron-rich soil and moist rudimentary soil, and there are four kinds of soil: moist iron-rich soil, aluminum moist leached soil, acidic moist leached soil and aluminum moist rudimentary soil. There are four subtypes of common aluminum moist rudimentary soil, ordinary simple nourished moist iron-rich soil, ordinary aluminum moist leached soil and common acidic moist leached soil. According to the classification standard of Turkish and soil systems, six soil systems, such as clay siliceous mixed acid heat, common aluminum moist embryonic soil, and so on, were established. Eight soil systems, such as 43-CS18, etc., were established. The practice shows that the current classification standard of Turkish soil system is suitable for the classification of soil base classification unit. Compared with the results of soil genesis classification, the results of soil systematic classification can reflect the difference of soil properties of granite parent material development in eastern Hunan more quantitatively, and then objectively reflect the difference of soil development stage and soil type.
【作者单位】： 湖南农业大学资源环境学院;
【基金】：国家科技基础性工作专项课题项目(2014FY110200)资助
【分类号】：S155.3
本文编号：2491691
[Abstract]:In order to study the classification of granite red soil in eastern Hunan Province in China, eight typical soil profiles developed by granite parent material in eastern Hunan were selected. Based on the study of the morphological characteristics and physical and chemical properties of the section, according to the systematic classification scheme of soil in China, the diagnostic faults and diagnostic characteristics were searched, and the classification of the profile in the systematic classification of China was determined. The results showed that the eight soil profiles included nine diagnostic faults and diagnostic characteristics, such as thin surface layer, dark barren surface layer, low active iron rich layer and viscous layer, and their positions in the systematic classification system of China were as follows: leached soil, There are three soil classes: iron-rich soil and rudimentary soil. There are three subclasses of moist leachate soil, moist iron-rich soil and moist rudimentary soil, and there are four kinds of soil: moist iron-rich soil, aluminum moist leached soil, acidic moist leached soil and aluminum moist rudimentary soil. There are four subtypes of common aluminum moist rudimentary soil, ordinary simple nourished moist iron-rich soil, ordinary aluminum moist leached soil and common acidic moist leached soil. According to the classification standard of Turkish and soil systems, six soil systems, such as clay siliceous mixed acid heat, common aluminum moist embryonic soil, and so on, were established. Eight soil systems, such as 43-CS18, etc., were established. The practice shows that the current classification standard of Turkish soil system is suitable for the classification of soil base classification unit. Compared with the results of soil genesis classification, the results of soil systematic classification can reflect the difference of soil properties of granite parent material development in eastern Hunan more quantitatively, and then objectively reflect the difference of soil development stage and soil type.
【作者单位】： 湖南农业大学资源环境学院;
【基金】：国家科技基础性工作专项课题项目(2014FY110200)资助
【分类号】：S155.3
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1 张俊民,曹升赓;酸性湿润淋溶土类的设立[J];土壤;1998年01期
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，本文编号：2491691
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