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为研究云南黄金走廊烟区土壤腐殖质组成特征及其与土壤理化性状的关系,采用聚类分析和相关分析等方法对云南黄金走廊烟区10个植烟市58份土壤样品进行分析。结果表明:1云南黄金走廊烟区土壤腐殖质碳量均值为15.97 g/kg,富里酸碳量、胡敏酸碳量和胡敏素碳量分别为3.45 g/kg、1.72 g/kg和10.80 g/kg;土壤胡富比在0.19~2.06之间,均值为0.54,腐殖质的腐殖化程度相对较低;2云南黄金走廊烟区10个植烟市中土壤腐殖质碳量及其组分含量以红河、楚雄、宝山和文山地区较高;3不同土壤类型间腐殖质碳含量以紫色土显著较低,其他表现为水稻土>红壤>新积土;四种类型土壤胡富比均小于1,依次为新积土>紫色土>水稻土>红壤;4土壤腐殖质碳量与土壤砂粒和粗粉粒含量呈显著性负相关,与细粘粒含量和阳离子交换量存在显著性正相关,土壤腐殖质组成与土壤p H整体呈负相关关系。
In order to study the composition of soil humus and the relationship with soil physical and chemical properties in the yellow gold corridor of Yunnan Province, 58 soil samples from 10 tobacco-planting areas in Yunnan Golden Corridor were analyzed by cluster analysis and correlation analysis. The results showed as follows: 1. The average soil humus carbon content in Yunnan Golden Corridor tobacco was 15.97 g / kg. The contents of fulvic acid, humic acid and humin were 3.45 g / kg, 1.72 g / kg and 10.80 g / kg, respectively . The soil humubiosis ratio ranged from 0.19 to 2.06, with a mean value of 0.54. The degree of humification of humus was relatively low. (2) The content of humus carbon in soil and its components in 10 tobacco-growing areas in Yunnan Golden Corridor, Chuxiong, Baoshan and Wenshan are higher. The content of humus carbon in different soil types is significantly lower in purple soil and the other is paddy soil> red soil> new soil; the ratio of the four types of soil is less than 1, followed by new Soil> purple soil> paddy soil> red soil; 4 soil humus carbon content was significantly negatively correlated with soil grit and coarse grain content, and there was a significant positive correlation with fine clay content and cation exchange capacity, soil humus composition and soil p H overall negative correlation.