葡萄园土壤中4种金属元素的测定及其对葡萄和葡萄酒的影响

Determination of Four Metal Elements in Vineyard Soil and the Effect on Grape and Grape Wine

采用湿法消解处理样品,火焰原子吸收光谱法检测河北昌黎葡萄酒产区5个葡萄园土壤中的铜、铁、锌、锰4种金属元素。并对比研究3种葡萄、葡萄酒与葡萄园土壤中铜、铁、锌、锰4种金属元素含量的关系。对不同葡萄园和同一葡萄园种植不同品种葡萄,其土壤中金属元素含量进行差异性分析。结果显示:葡萄园地理位置和微环境及所栽培的葡萄品种、树龄和架势不同,土壤中4种金属元素含量不同,差异性显著。铁、锌、锰3种元素在土壤中的含量与葡萄中的含量有一定关系。赤霞珠、美乐和西拉3种葡萄的土壤中铜、铁、锌的含量与葡萄及其葡萄酒中相对含量规律相同,而锰不同。

In this study, the wet digestion method was used to treat soil samples from five vineyards in Hebei Changli grape-producing area. The contents of four metal elements such as copper, iron, zinc and manganese in grape, grape wine and vineyard soil samples were detected by flame atomic absorption spectrometry. Results showed that the contents of four metals were significantly different in soil samples and grape samples with different varieties, age and postures from different vineyard locations and microenvironments. The contents of iron, zinc and manganese in soil of vineyards reveal a correlation with the contents of three metal elements in grape. There was a similar trend in the contents of copper, iron, zinc except manganese between the soil and grape wine from three kinds of grapes such as Cabernet Sauvignon, Merlot and Syrah.