湖南植烟土壤盐分及其表聚特征研究
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国家烟草专卖局项目


On Total Salt Amount and Salt Accumulation in Surface Soil in Tobacco Fields in Hunan
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    摘要:

    对湖南主要植烟区表层土壤总盐及主要盐分离子的组成进行了分析。结果表明:烟叶收获后,植烟土壤盐分表聚现象严重,表层土壤总盐量达 4.17 g/kg,与强度盐化土相当。烟-稻轮作土壤盐分表聚明显强于旱地烟土壤,同时,在烟-稻轮作区又以衡阳土壤盐分含量最高,永州和郴州其次;烟-稻轮作区植烟土壤表层盐分离子以 NO3-、SO42-、Ca2+ 和 K+ 为主,占总盐量的 95.21%。

    Abstract:

    Surface soils of tobacco fields in Hunan Province were collected to analyze total salt concentrations and composition of ions. The results showed that a remarkable salt accumulation occured in surface soils after tobacco leaves were harvested. Total salt concentration reached up to 4.17 g/kg, near the intensely salinized soil. Higher salt accumulation in surface soil occured in tobacco-rice rotation than in tobacco dryland. Moreover, the highest total salt amount of surface soil in tobacco-rice rotation fields happened in Hengyang, and followed by Yongzhou and Chenzhou. In addition, NO3-, SO42-, Ca2+ and K+ consisted of main ions in surface soils in the tobacco-rice rotation fields, which accounted for 95.21% of total salt amount.

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石丽红.湖南植烟土壤盐分及其表聚特征研究[J].土壤,2008,40(4):612-615. SHI Li-hong. On Total Salt Amount and Salt Accumulation in Surface Soil in Tobacco Fields in Hunan[J]. Soils,2008,40(4):612-615

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