img

官方微信

高级检索

中国沙漠 ›› 2000, Vol. 20 ›› Issue (4): 426-429.

• 论文 • 上一篇    下一篇

阿拉善荒漠草地类微量元素含量特征的研究

付华1, 周志宇1, 庄光辉2   

  1. 1. 甘肃省草原生态研究所, 甘肃 兰州 730020;
    2. 内蒙古阿拉善盟草原站, 内蒙古 巴彦浩特 750306
  • 收稿日期:2000-02-28 修回日期:2000-06-01 出版日期:2000-12-20 发布日期:2000-12-20
  • 作者简介:付华(1954-),女(汉族),山东枣庄市人,副研究员,主要从事草原生态化学研究工作。
  • 基金资助:
    国家自然科学基金重点项目(39730100)资助

Study on Characteristic of Trace Element Content in Desert Grassland of Alxa

FU Hua1, ZHOU Zhi-yu1, ZHUANG Guang-hui2   

  1. 1. Gansu Grassland Ecological Research Institute, Lanzhou 730020, China;
    2. Alxa Steppe Station of Inner Mongolia, Bayanhot 750306, Inner Mongolia, China
  • Received:2000-02-28 Revised:2000-06-01 Online:2000-12-20 Published:2000-12-20

摘要: 对阿拉善所属的4个草地类6个亚类75个牧草25个土壤样本中的Fe、Mn、Zn、Cu、Co、Mo、Se等7种微量元素的含量及分布类型进行研究,并对各草地类牧草中微量元素的含量进行评价。研究结果表明,土壤中微量元素除滩地戈壁亚类,山前倾斜地亚类、河泛地低地亚类Se含量及冷温潮湿类的Cu和Zn含量正常外,其它都低于我国和世界正常土壤平均含量。微量元素的缺乏与成土母质相关。阿拉善地区气候、土壤等生态条件复杂,但牧草中微量元素的含量有一定范围,这与牧草本身对元素的吸收和积累能力相关。

关键词: 荒漠草地, 土壤, 牧草, 微量元素, 阿拉善

Abstract: Content and distribution type of Fe,Mn,Zn,Cu,Co,Mo,Se,in 6 subtypes among of 4 types of grassland in Alxa were studied with 75 herbage samples and 25 soil samples,and content of trace element were estimated in herbage of various subtypes of grassland.The result showed that there was normal content of Se in flat Gobi,foothill slope,low land and Cu,Zn in coldemperate-humid type,lower in the other subypes or types than the average content of normal soil in China and in World.Deficiency of trace elements was correlative to soilforming rock.The content of trace elements in herbage had a certain extension in despite of complex climate,soil and other ecological condition in Alxa,which was correlative to the ability of herbage to absorb and accumulate trace elements.

Key words: desert grassland, soil, herbage, trace element, Alxa

中图分类号: