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应用生态学报 ›› 1995, Vol. 6 ›› Issue (3): 308-312.

• 研究论文 • 上一篇    下一篇

东北地区生态环境中的Se及其生态效应

尹昭汉, 崔剑波, 马晓丽, 鞠山见   

  1. 中国科学院沈阳应用生态研究所, 沈阳 110015
  • 收稿日期:1995-04-18 修回日期:1995-05-12 出版日期:1995-07-25 发布日期:1995-07-25
  • 基金资助:

    国家自然科学基金

Selenium in eco-environment of northeast China and its ecological effect

Yin Zhaohan, Cui Jianbo, Ma Xiaoli, Ju Shanjian   

  1. Institute of Applied Ecology, Academia Sinica, Shenyang 110015
  • Received:1995-04-18 Revised:1995-05-12 Online:1995-07-25 Published:1995-07-25

摘要: 对东北地区不同环境要素(基岩、土壤、植物、动物和人体)Se的分布与转化规律的研究表明,基岩、土壤、粮食和动物毛Se含量分别为0.12、0.150-0.540、0.0096-0.0765和0.0405-0.1414μg·g-1;城市和农村儿童发Se含量为0.460和0.182μg·g-1.根据不同要素Se含量和生态效应,可将该区分为Se适宜区、缺乏区和过渡区3个1级区。每个1级区又分为高Se源区和低Se源区。

关键词: Se含量, 生态环境, 生态效应, 土壤干层, 蒸散, 黄土旱塬区, 冬小麦, 土壤水库

Abstract: Studies on selenium distribution-and its transforming regularity in different environmental elements of northeast China show that Se contents in bed roch,soil, plant and animal hairs are 0.12, 0.150-0.540, 0.0096-0.0765 and 0.0405-0.1414μg·g-1,and those in children hairs in urband and rural regions are respectively 0.460 and 0.182μg·g-1.Based on Se contents in different components and ecological effects,the region is divided into three first-grade areas, e.g.Se suitable area, Se deficiency area and Se transitional area, and each is classified into higher and lower Se source areas.

Key words: Selenium content, Eec-environment, Ecological effect, evapotranspiration, rain-fed area of the Loess Tableland, soil reservoir, soil desiccation, winter wheat