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干旱区地理 ›› 1989, Vol. 12 ›› Issue (3): 15-22.doi: 10.13826/j.cnki.cn65-1103/x.1989.03.003

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阿尔泰山西北部土壤垂直带有机质性质的变化特征

季方1, 王秀红2   

  1. 1.中国科学院新疆生物土壤沙漠研究所
    2.北京农业大学
  • 出版日期:1989-09-25 发布日期:2025-12-25

The Soil Vertical Sequence of Varied Feature of Organic Matter Nature In The Northwestern Altai Mountains

Ji Fang1, Wang Xiu Hong2   

  1. 1. Xinjiang Institute of Biology, Pedology and Desert, Academia Sinica
    2. Peking Agricultural University
  • Published:1989-09-25 Online:2025-12-25

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摘要： 本文对阿尔泰山西北部土壤垂直带有机质性质的分析表明:垂直带表土层有机质含量随海拨升高而递增,有机质与全N有很好的相关性,阳离子代换量在有机质和pH双重影响下,以黑钙土最高。在垂直带中,以黑钙土的水热条件对土壤有机质的积累最为合适,表现为有机质含量高,腐殖质层深厚,胡敏酸的分子复杂。

关键词: 有机质积累, 腐殖质, 胡敏酸, 光密度, 红外光谱

Abstract: The work mainly deals with the vertical soil sequence of varied feature of organic matter nature in the northwestern Altai mountains, The results arennma ifested that the contentnofnorganic matter and total nitrogen in the surface soil are gettin gmore and more with the increasing of sea level elevation, whearas the cation exchange capacity in the surface layer of the chernozen is higher than that in the surface layer of the soil.The hydrothermal conditions of the chernozen in the vertical soil sequence are most suitable for accumulation of organic matter, hence the soil is characterized by the high organic matter, the thick humus layer, the complex humic acid molecules.