硒的分布及综合利用研究

硒元素在自然界中的分布类型主要有独立矿床及伴生矿床、富硒地区和贫硒地区，高硒地区基本与高硒煤炭地区分布一致，呈片状或灶状分布；高硒地带的边缘邻接于贫硒带，呈南北走向；伴生矿床占硒储量的90%。针对不同的硒分布类型，介绍了工业提炼、生产富硒肥料及植物富集，补施硒肥的技术动态。

Selenium Distribution and Comprehensive Utilization

The main types of selenium elements in the distribution were independent deposits, selenium-associated deposits in rich selenium area and poor selenium areas.The distribution in the high selenium areas is basically consistent with that of high selenium and coal areas, which assumes laminated or the stove shape distribution.The high selenium areas adjacent to the brink of poor selenium areas assume in the north and south trend.The reserves of selenium in selenium-associated deposits accounts 90 percents of the total.According to the different types of distributions, it is proposed that techno-countermeasures such as the industrial use, producing the rich selenium fertilizer, plant enrichment of selenium and selenium-fertilizer application should be taken.