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本文研究了浙南地区变质岩上发育的土壤,发现它具有显著的脱硅富铝化特征:土体颜色鲜红(10R5/8),粘粒的硅铝率较低(2.06),而且粘粒中Fe_2O_3含量很高(11.50％),土壤呈酸性反应,盐基饱和度很低(13.4％),有效阳离子交换量平均只有8.1毫克当量/100克土,即百克粘粒(〈2μ)之E C E C只有21.1毫克当量;粘土矿物中高岭石占绝对优势。因此认为浙南地区变质岩上发育的土壤应归属典型红壤。最后作者对该土壤的因地制宜开发利用提出了意见。
This paper studied the soil developed on the metamorphic rocks in southern Zhejiang area and found that it has significant characteristics of desilication and aluminization: the soil is bright red (10R5 / 8), the clay content is low (2.06), and the clay The Fe 2 O 3 content is very high (11.50%), the soil is acidic and the base saturation is very low (13.4%). The average effective cation exchange capacity is only 8.1 mg eq / 100 g soil, ie ECEC Only 21.1 milliequivalents; kaolinite in clay minerals accounted for the absolute advantage. Therefore, it is considered that the soil developed on the metamorphic rocks in southern Zhejiang should belong to the typical red soil. Finally, the author put forward his opinion on the development and utilization of the soil according to local conditions.