论文部分内容阅读
研究了汾渭盆地的土垫旱耕人为土地球化学状态与有关影响因素。１．土垫旱耕人为土受施土粪堆垫作用改变了成土方向与过程，也改变了土壤地球化学特征，２．土垫旱耕人为土在成土过程受淋溶淀积、生物迁移富集，蒸发等作用，但被Ｃａ￣（＋＋）、Ｍｇ￣（＋＋）等离子饱和，使土壤呈偏碱性。３．土垫旱耕人为土不同亚类在成土过程中因生态环境的差异，其土壤地球化学特征稍有差异。
The soil geochemical status of soil pad and its related factors in Fenwei basin were studied. 1. Soil pad dry man-made soil by the role of soil dunnage pad change direction and process of soil formation, but also changed the geochemical characteristics of the soil, 2. Soil pad dry man-made soil in the process of soil formation by the leaching deposition, biological migration enrichment, evaporation and other effects, but by Ca ~ (++), Mg ~ (++) plasma saturation, the soil was alkaline. 3. The different types of soil geochemical characteristics of different sub-types of dry-soil man-made soil in soil-forming process due to different ecological environment.