| 摘要: |
| 对青海省日月山南坡基带海拔拔3 353 m和中下部海拔3 515 m的2个典型土壤剖面的分析表明，在所选海拔高度范围内，日月山南坡基带和中下部土壤呈碱性反应，风化发育程度较弱，机械组成以砂粒为主，并具有明显的钙积层(或钙积现象)；随海拔高度升高，有机质、养分含量及交换性能逐渐降低，土壤pH值变化不大。诊断表明，日月山南坡中下部土壤可划归为干润均腐土，其中基带的Q-01属钙积粘化暗厚干润均腐土，中下部的Q-02属钙积寒性干润均腐土。 |
| 关键词: 日月山 土壤发生特性 系统分类 |
| DOI： |
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| 基金项目:国家自然科学基金项目(30170790)；教育部科技重点项目(03157) |
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| Genetic characteristics and taxonomy on mid-below part of the southern slope of the Riyue mountain |
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| Abstract: |
| Two soil typical profiles with altitude 3 353 m and 3 515 m on northern slop of the Riyue mountain in Qinghai province were selected to carry out system study.The results showed that the experimental soils have alkalescent reaction,feeble development,higher sand content in mechanical composition,obvious Calcic horizon.With the altitude becomes higher,soil organic matter,nutrient content,CEC gradually lower,but,soil pH has no changes.Based on the method from Keys to Chinese Soil Taxonomy (3rd edition),research region soil belongs to Ustic Isohumosols,and Q-01 belongs to Calci-argic Pachi-Ustic Isohumosols,Q-02 belongs to Calcic Cryi-Ustic Isohumosols. |
| Key words: Riyue mountain soil characteristics taxonomic classification |
