牛肝菌是世界性的美味食用菌，极具经济价值。滇中是我国食用牛肝菌种类最多、产量最大的地区。本项目以从滇中地区采集的主要食用牛肝菌及生长土壤样品为材料，在其生境调查的基础上，应用ICP-AES法对其矿质元素进行研究，阐明滇中主要食用牛肝菌矿质元素在不同地理居群、不同物种的分布模式，明确滇中主要食用牛肝菌矿质元素积累特征，为食用菌的食品安全风险评估、矿质元素富集生物资源的筛选、生态风险评估和环境监测等提供重要的基础数据。

Boletes are universally considered to be delicious edible mushrooms, with great economic value. Most boletes species can be found in Central Yunnan, which is the region of largest output of boletes in China. In this project, we will collect the main edible boletes species and soil from central Yunnan, and investigate the habitat of the mushrooms. ICP-AES method will be used for determining the content of the mineral element in samples to analyzing the distribution and accumulation patterns of the mineral elements among different species from different sites. These results will provide basic data for food safety risk assessment of edible mushroom, screening biological resources of the element enrichment, ecological risk assessment, and environmental monitoring.