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surface horizon中文是什么意思

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  • Significant seasonal changes of microbial numbers were observed in surface horizon
    Cm深土壤细菌生物量有明显的季节性变化,从
  • Denitrification and nitrogen fixation in 10 cm 20 cm horizon are higher than those in other soil horizons , in which the partial pressure of oxygen is lower than that in surface horizon , and the number of microorganisms is more than that in below horizon
    高寒草甸土壤中未发现有好气性自生固氮菌,但嫌气性自生固氮菌的数量众多。在高寒草甸严酷的自然条件下,嫌气性自生固氮菌为大气氮素固定的主要承担者。
  • 2 . the diagnostic surface horizons divided on the soils of the area are mollic epipedon , umbric epipedon and ochric epipedon . the diagnostic subsurface horizons are cambic horizon , argic horizon , histic evidence and mattic evidence . the diagnostic characteristics are sapric soil materials , folic soil materials , soil moisture regimes , soil temperature regimes , ferric property and base saturation
    本地区土壤划分出的诊断表层有暗沃表层、暗瘠表层和淡薄表层,诊断表下层有雏形层、粘化层,诊断现象有有机现象、草毡现象,诊断特性有6个:高腐有机土壤物质、落叶有机土壤物质、土壤水分状况、土壤温度状况、铁质特性、盐基饱和度。
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Last modified time:Thu, 14 Aug 2025 00:29:56 GMT

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