贵州鸟王茶产地不同生态环境土壤微量元素含量及剖面特征

Soil Micronutrient Content and Profile Characteristics under Different Ecological Environments in Niaowang Tea Producing Area in Guizhou

为了解不同生态环境下贵州鸟王茶产地土壤微量元素含量及其含量的剖面特征,为鸟王茶高产优质栽培提供基础依据,采用室内分析测试技术和室外实地考察,对鸟王茶产地土壤和剖面土壤进行测试。结果表明：不同生态环境中土壤微量元素全量平均含量差别很大,野生茶园的全Fe和全Zn含量最高,分别是39 646和6131 mg/kg,天然林地的全Mn、全Cu和全Mo的含量最高,分别是163.92、13.22和1.23 mg/kg;野生茶园的有效Fe、有效Mn、有效Zn和有效B含量最高,分别是148.47、31.12、5.46和0.32 mg/kg,天然林地的有效Cu含量最高,为1.32 mg/kg;土壤微量元素全量剖面特征为Fe、Cu、Mo随着土层增加呈现逐渐减小的趋势;有效含量分布状况为Fe、Mn、Cu、Zn、Mo、B从0-20和20-40 cm呈现天然林地〉野生茶园〉人工茶园。结论：野生茶园土壤微量元素含量优于人工茶园。

The micronutrient content of soils in different ecological environment and with different layer was analyzed by indoor analysis and outdoor field survey to provide the scientific basis for cultivation of high yield and high quality in Niaowang tea. The results showed that there is significant difference in average soil micronutrient content between different ecological environments. The highest Fe and Zn content in soil of wild tea plantation are 39646 and 6131 mg/kg separately. The highest Mn, Cu and Mo content in soil of natural forest land are 163.92, 13.22 and 1.23 mg/kg, respectively. The highest effective Fe, Mu, Zn and B content in soil of wild tea plantation are 148.47, 31.12, 5. 46 and 0.32 mg/kg separately. The highest effective Cu content in soll of natural forest land is 1.32 mg/kg. Soll Fe, Cu and Mo content decreases with increase of layer depth gradually. The distribution of effective Fc, Mn, Cu, Zn, Mo and B content of softs with 0 - 20 cm depth and 20 - 40 cm depth is natural forest land 〉 wild tea plantation 〉 artificial tea garden. In conclusion, soil micronutrient content in wild tea plantation is higher than artificial tea garden.