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作者采集浙江省的红壤、黄壤、水稻土和岩性土等四个土类的19个土壤剖面,60个土壤样品,用日本产的340型分光光度计和DG—1型野外光谱仪测定土壤样品的光谱反射特性曲线(可见光与近红外波段),并进行土壤光谱的模糊分类及与现行土壤分类作相关性分析。其结果表明,红壤、黄壤和水稻土三类土壤的光谱曲线的形态特征,分别表现为陡坎型、缓坡型和平直型;各类土壤的特征波段的斜率变化与土壤母质类型有一定关系;综合分析土壤光谱特性,有助于基层土壤的分类;应用模糊数学方法对土壤光谱分类,与现行土壤分类比较,具有70％以上的符合率,而不符合的部分,多数是在现行土壤分类中也是有争议的,或者是不合理的。
The authors collected 19 soil profiles and 60 soil samples from four soil types of red soil, yellow soil, paddy soil and lithological soil in Zhejiang Province. Soil samples were measured using a Japanese-made 340 spectrophotometer and a DG-1 field spectrometer Spectral reflectance curves (visible light and near infrared band), and fuzzy classification of soil spectra and correlation analysis with the current soil classification. The results showed that the morphological characteristics of the spectral curves of red soil, yellow soil and paddy soil showed steep ridge type, gentle slope type and straight type. The slope of the characteristic bands of each soil type had some relations with the soil parent material types. Comprehensive analysis of soil spectral characteristics is conducive to the classification of grassroots soil. Using fuzzy mathematics to classify the soil spectra, compared with the current soil classification, with more than 70% of the coincidence rate, but not in conformity with the majority of the current soil classification Is also controversial, or unreasonable.