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为了研究特有种艾比湖桦生长的土壤条件,选择该桦树生长的土壤为研究对象,运用分析化学及土壤地理学的方法,对土壤中的养分及盐分指标进行了测试,结果表明:艾比湖桦生长的土壤中,盐分含量的变化范围为0.05%~2.47%,均值<1%,表聚现象明显,属于轻度盐化土壤,明显低于艾比湖湿地其它区域。有机质含量多为17.47~29.62g/kg,速效氮、磷、钾等养分含量均较高,pH值变幅为7.78~8.48,呈碱性;主成分分析结果表明:土壤速效磷、有机质、pH值、水解氮、土壤盐分等理化指标构成了艾比湖桦适生土壤的特征因子。综合而言,艾比湖桦适生土壤特征为盐分含量低、养分含量高。
In order to study the soil conditions of the endemic Betula alnus growing, select the birch growth soil as the research object, using analytical chemistry and soil geography methods to test the soil nutrient and salt indicators, the results show that: Ai The content of salt in soil increased from 0.05% to 2.47% and the average value was less than 1%. The phenomenon of surface aggregation was obvious, which belonged to slightly salinized soil, which was obviously lower than other areas of Aibi Lake wetland. The content of organic matter was mostly 17.47 ~ 29.62g / kg, the contents of available nitrogen, phosphorus and potassium were higher, and the pH value ranged from 7.78 to 8.48. The principal component analysis showed that available phosphorus, organic matter, pH Physical and chemical indicators such as value, hydrolyzed nitrogen and soil salinity constitute the characteristic factors of the suitable soil for the birch in the Lake Aibi. Taken together, the suitable soil for A. birch is characterized by low salt content and high nutrient content.