湘东花岗岩发育水稻土在中国土壤系统分类中的归属

发布时间：2018-05-21 15:16

本文选题：人为土 + 诊断层　；参考：《浙江农业学报》2017年10期

【摘要】：选取湘东7个起源花岗岩风化物的水稻土样点,按中国土壤系统分类指标体系,野外系统调查成土环境、描述土壤剖面形态,室内分析理化性质,研究其在中国土壤系统分类中的归属,评述土系的生产性能。结果表明,在水耕人为土亚纲下,划分出铁聚和潜育水耕人为土2个土类,普通铁聚水耕人为土和普通潜育水耕人为土2个亚类,进一步划分出6个土族和7个土系(车溪系、刘家场系、双家冲系、红阳系、柏树系、湾头系和福安系)。对于同一地区类似母土/母质发育的水耕人为土而言,基于系统分类的定量化指标(颗粒大小和质地层次)比基于发生分类的定性判定具有更强的划分能力。
[Abstract]:The paddy soil samples of 7 granite weathering materials in eastern Hunan were selected. According to the classification index system of soil system in China, the soil environment was investigated in the field, the soil profile and the physical and chemical properties were described in the laboratory. The classification of the soil system in China was studied and the production performance of the soil system was reviewed. The results showed that under the subclass of hydroponic soil, It is divided into 2 subclasses of 2 soil types, such as iron accumulation and dive cultivation of human soil, ordinary iron polyhydrographic human soil and ordinary submersible water cultivated human soil, which are further divided into 6 tub and 7 soil systems (car creek system, Liu's field system, double Chong system, red Yang system, cypress, bay head system and Fu'an system). For soil, quantitative index based on system classification (particle size and texture level) has stronger partitioning ability than qualitative judgment based on occurrence classification.
【作者单位】：湖南农业大学资源环境学院;湖南农业大学土壤研究所;
【基金】：国家科技基础性工作专项(2014FY110200A15)
【分类号】：S155.292

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