章丘大葱产地地质地球化学背景研究

[目的]了解章丘大葱产地表层土壤地球化学环境特征及元素的迁移转化规律。[方法]以生态地球化学理论为指导,利用章丘大葱产地生态地球化学调查的基础数据,系统研究境内表层土壤元素的分布特征、组合特征及剖面特征。[结果]分析土壤中20种元素的地球化学特征,其中大部分元素受深层土壤控制明显,具较强的承继性。但是,S、Se、Hg、N、P等元素受人类活动的影响明显。[结论]研究区土壤中大多数元素基本保持成土母质母岩的原始状况,物质主要来源于深层土壤母质,但一定程度上受表层各种作用的改造。

Study on Geological and Geochemical Background of Zhangqiu Onions' Growing Area

[Objective]The research aimed to study the geochemical environment of Zhangqiu onions product area and migration and transformation law of soil element.[Method]According to the ecological geochemistry theory and the data of ecological geochemical survey in Zhangqiu onions product area,the topsoil's character of elements distribution,association and section were studied.[Result]Geochemical character of twenty elements in soil was studied.Most of these elements were obviously controlled by deep soil,and they had strong inheritance.But some elements,such as sulfur,selenium,mercury,nitrogen and phosphorus,were obviously affected by human activity.[Conclusion]Majority elements maintained the original character come from parent material.The material mainly origined from the deep soil parent material,but changed by some surface process to some certain.