红壤地区土壤母质发育程度对红壤持水供水特性的影响

Effects of Soil Parent Materials Development on Soil Water Characteristics in Red Soil Region

对同一种土壤母质(玄武岩)的红粘土和棕泥土的持水和供水能力进行了分析研究,结果表明红粘土和棕泥土由于风化和淋溶程度不同对土壤质地产生了深刻的影响,进而对土壤的持水供水特性产生明显影响,这种影响要明显大于同一种土壤如棕泥土或红粘土由于利用方式和耕作制度不同所引起的土壤持水能力的差异。

Studies on soil water holding capacity and soil water supplying capacity of two soils were carried out in ZheJiang province, China, which ,with different degrees of weathering and eluviation, originated from the same soil parent materials(wacke), and were called Hongniantu and Zongnitu in Chinese respectively. It showed that the general characters of soil water holding and soil water supplying are mainly governed by degrees of soil weathering and eluvation, which affects soil texture profoundly, and these differences caused by degrees of soil weathering and eluvation were much more than those differences from soil utilization styles and agriculture management system.