The albic soils (baijiantu) is develop.nent under semi-humid climate of temperate none in this country. They are commonly derived from Quaternary deposits. Due to periodically stagnancy of water under conditions of alternate seasonal wetness and dryness, the iron and manganese are reduced and leached off, the clay fraction is also leached downward, its amount apparently decreases in A and SB horizon, but increases in the B horizon. Silicon-iron, silicon-aluminium, and silicon-iron-aluminium ratios change insignificantly in the entire soil profile.The soil acidity is stable, the base saturation is high generally around 70-90%.
参考文献
相似文献
引证文献
引用本文
高子勤,宋玉芳,关熙铭.白浆土形成过程中某些物理、化学性质的研究[J].土壤学报,1988,25(1):13-21. Gao Ziqin, Shong Yufang, Guan Xiping. STUDY ON THE PHYSICAL AND CHEMICAL PROPERTIES OF ALBIC SOILS IN THE FORMING PROCESSES[J]. Acta Pedologica Sinica,1988,25(1):13-21.