老成土 meaning in English
[地质学] ultisol; ustisol
Examples
- The soils ( paleudults ) consist predominantly of light brown fine loamy sand to fine sandy loam changing with depth into a brown sandy clay loam and sandy clay with red mottles
土壤（强发育湿润老成土）主要为淡棕色细壤质砂土到细砂质壤土，随着深度增加，土壤变为棕色砂质粘壤土和带有红色斑点的砂质粘土。 - 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。