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• 基金项目：

• 郑达贤
• 中国科学院地理研究所

• 李日邦
• 中国科学院地理研究所

• 王五一
• 中国科学院地理研究所

• 摘要：本文根据作者所在研究组多年研究发表的数据、综合世界上有关环境和生物中硒的研究资料,分析了植物、动物和人体组织中硒在世界上基本一致的带状地理分布特征。提出世界上有一低硒带,这一低硒带以地球上南北半球中高纬度温带湿润、半湿润森林、森林草原带和地中海型自然地区为中心。并以原生地理环境低硒生态链所引起的人和动物硒反应症的分布为特征。从原生环境和次生环境关系的角度提出环境中硒的区域分异在环境研究和评价中的意义。

• Abstract：Based on the data studied for many years by our group and then published, research information on selenium in the environment and living beings in the world, geographic belts of selenium distribution in vegetation, animals and human bodies in all over the world is analysed in this paper. It is suggested that there is a low-selenium zone which takes the humic and semi-humic forest, forest-grassland in the temperate zone and the mediterranean type regions in the middle and high latitudes of the southern and northern hemisphere as the center, where selenium response symptoms in man and animal occur, caused by the low-selenium ecological chain in the primary geographic environment. From the view point of the relation between the primary and secondary environment, it is proposed that regional distribution of selenium in the environment is of significance in both environment study and evaluation.

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