评估典型酿酒葡萄产区的土壤重金属污染情况对葡萄酒产业绿色可持续发展尤为重要。采集宁夏银川贺兰山和青铜峡产区的代表性酿酒葡萄园土壤样品124份，测定土壤中Pb、Cd、Cr、As、Hg和Cu等重金属的含量，并采用污染指数法分析评估土壤重金属在不同种植年限上的分布特征和污染情况。结果表明，受调查的葡萄园土壤重金属含量均未超过土壤重金属污染标准值。土壤中各重金属的单项污染指数和综合污染指数均小于1。0，表明该地区土壤污染等级为安全。就不同种植年限而言，土壤重金属内罗梅综合污染指数表现为6～10年＞0～5年＞16～20年＞11～15年，种植年限为6～10年的葡萄园土壤重金属存在一定的污染风险，其中以As、Cd和Cu较为突出。进一步分析发现，葡萄园行间土壤重金属含量高于行内，尤其As表现较明显，而就土壤不同深度而言，Cu易在行内20～40 cm 土层积累。总体而言，银川贺兰山和青铜峡酿酒葡萄产区酿酒葡萄园土壤重金属处于清洁水平;部分种植年限和土层土壤重金属含量处于警戒水平。在酿酒葡萄园管理中应注重As、Cd等重金属输入方面的污染管控。
Distribution characteristics and evaluation of soil heavy metals in different planting years in Yinchuan wine grape-producing area
For the green and sustainable development of the wine industry,it was important to assess the soil heavy metal pollution in typical wine grape-producing areas.In this study,124 soil samples were collected from the Helan Mountain and Qingtongxia production areas in Yinchuan,Ningxia,and the contents of Pb,Cd,Cr,As,Hg,and Cu were determined,and the distribution characteristics and pollution of soil heavy metals were analyzed and evaluated using the pollution index method in different planting years.The results showed that the content of heavy metals in the soil of the vineyards surveyed did not exceed the standard value of soil heavy metal pollution.The single and combined pollution indices for all soil heavy metals were less than 1.0,indicating that the soil pollution level in the research area was safe.For different planting years,the comprehensive pollution index of soil heavy metal was 6-10＞0-5＞16-20＞1 1-15 years,and vineyard soils with 6-10 of planting years had a certain risk of heavy metal pollution,among which As,Cd,and Cu were more prominent.Further analysis revealed that the higher levels of heavy metals in the inter-row soil than those in the intra-row soil were found,especially for As,while Cu was easy to accumulate in soil depths of 20-40 cm in the intra-row soil.Overall,soil heavy metals in wine vineyards in the Helan Mountain and Qingtongxia wine-producing areas in Yinchuan were at clean levels.Heavy metal levels were at warning levels in some planting years and soil layers.The results suggested that the pollution control of heavy metals such as As and Cd should be a priority in the management of winemaking vineyards.
万方数据
维普
