灰色聚类法在植烟土壤适宜性评价中的应用

Application of Grey Cluster Analysis in Suitability Evaluation of Tobacco Planting Soils

以河南省三门峡市植烟区土壤为对象,选取了5个与烟草生长密切相关的参评因子,利用灰色聚类方法进行植烟适宜性评价。结果表明:渑池、陕县及卢氏县部分烟区为适宜性较高地区;卢氏县南部部分烟区为适宜性较低地区。与传统的适宜性评价方法相比,灰色聚类法根据指标确定权重,所得结论更为客观、合理。

Taking the tobacco planting soils in Sanmenxia of Henan Province as study objects, five factors which closely related to tobacco growth were adopted to evaluate the soils＇ suitability for tobacco planting with grey cluster analysis. The results showed that the tobacco planting soils in Miancbi, Shanxian and parts of Lushi counties possessed higher suitability, and the suitability of some tobacco planting soils in the south of Lushi County was lower. In grey cluster analysis, each index is weighted separately, the resulted conclusion would be more objective and reasonable comparing with traditional methods.