采集邵阳县金称市镇和塘田市镇2个土地整理项目区不同母质发育的植烟土壤样品,分析了项目区土壤有效微量养分含量、不同母质发育土壤的有效微量养分含量和土地整理对土壤有效微量养分含量的影响.结果表明:2个项目区土壤有效铁、锰含量丰富,有效锌、硼含量缺乏;塘田市镇项目区有效铁、铜、锌、钼含量较金称市镇项目区丰富;第四纪红色粘土发育的土壤有效锌、硼、钼含量最高,有效铜含量最低,河流沉积物发育的土壤有效铁、锰含量最高,有效硼、钼含量最低,石灰岩风化物发育的土壤有效铁、锰、锌含量最低,有效铜含量最高;土地整理使耕作层土壤有效铁、铜、硼的变异性增大,有效铁、铜、锌含量下降,有效锰、硼、钼含量提高.因此,项目区应规范土地整理施工,加强锌、硼肥的投入.%Topsoils (plough layer) developed from different parent materials under tobacco-rice rotation system in two land consolidation areas in Jinchengshi and Tangtianshi Towns of Shaoyang County were collected, analysis the content of soil available micro-nutrients in the project area, it contents in soils with different parent materials, and the effects of land consolidation on it. The results showed that the soil available Fe and Mn were abundant, available Zn, B contents was scanty. Compared with Jinchengshi, soils in Tangtianshi had higher available Fe, Cu, Zn and Mo contents in soil. Soils developed from Quaternary red clay had the highest Zn, B contents, and the lowest available Cu content. Soils developed from alluvial sediment had the highest available Fe, Mn contents and the lowest available B and Mo contents. Soils developed from limestone had the lowest available Fe, Mn and Zn contents, and the highest available Cu contents. Land consolidation decreased soil available Fe, Cu and Zn content, increased soil available Mn, B and Mo contents and also increased the variability of available Fe, Cu and Zn contents. Therefore, it is necessary to regulate mode of land consolidation and increase emphasis on Zn and B fertilization.
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