安徽省富硒土壤评价标准及富硒土壤成因浅析

Evaluation standards and genesis of selenium-rich soil in Anhui Province

富硒土壤作为提高农产品附加值的资源日益引起重视,如何界定富硒土壤没有相关标准。本文依据调查分析数据,以地球化学统计为基础,以生态效应为检验标准,提出了安徽省硒元素景观分级及富硒土壤界定标准。根据富硒土壤区表、深层土壤比值统计结果,提出了辨别自然成因或人为污染形成的富硒土壤定量标准,为建立安徽省地方性富硒土壤评价标准提供了科学依据。

Selenium-rich soil, being regarded as a resource that can improve the additional value of agricultural product, has been attracted more and more attentions in recent years. However, it has no relevant stand- ards how to define selenium-rich soil in Anhui province. With the data analysis, geochemical statistics and ecological effect inspection standard, this paper puts forward a criteria on the surrounding landscape grade scale of selenium element and selenium-rich soil definition. Based on the statistics of the ratio of surficial soil and deep soil in selenium-rich soil region, a quantitative standard for differentiating the selenium-rich soil caused by natural factors or human-borne contamination was presented. These findings provide scientitle evidence for establishing valuation standards of endemic selenium-rich soil area existed in Anhui province.