In the podzol profile the coefficients reflected the marked horizon differentiation . 对灰化土剖面，系数反映了明显的层位分异。
2.
A leached soil formed mainly in cool , humid climates 灰壤，灰化土一种淋洗的土壤，主要形成于阴凉而湿润的地带
3.
In addition to nutritional factors , the productivity of many acid soils is affected by physical factors that include low water holding capacity （ oxisols , spodosols ） and susceptibility to crusting , erosion and especially compaction （ oxisols , ultisols ） 除了养分因素外，许多酸性土壤的生产力受物理因素的影响，包括持水量低（氧化土，灰化土）和对结壳、侵蚀及特别是压实（氧化土、老成土）敏感。
