地理科学 ›› 1987, Vol. 7 ›› Issue (1): 19-28,101.doi: 10.13249/j.cnki.sgs.1987.01.19

• 论文 • 上一篇    下一篇

我国土壤中铜、锌、镍的背景含量和趋势分布

王景华   

  1. 中国科学院地理研究所 北京
  • 出版日期:1987-01-20 发布日期:1987-01-20

BACKGROUND VALUES AND TREND DISTRIBUTION OF Cu,Zn AND Ni IN SOILS IN CHINA

Wang Jinghua   

  1. Institute of Geography, Academia Sinica, Beijing
  • Online:1987-01-20 Published:1987-01-20

摘要: 本文研究了我国21种主要土壤类型Cu Zu Ni的背景值,探讨了18个地区土壤背景值的差异,在大面积研究土攘背景值分布特征的基础上,提出了我国土雄Cu的趋势分布,圈定了Cu的高背景区与低背景区.

Abstract: The background values of Cu,Zn and Ni are discussed based on the analytical data of 21 main soil types collected from various regions in China. According to statistics of many samples,the background value of Cu is 23.4?10.2ppm (482samples),Zn 77.9?2.39ppm (474 samples),Ni 30.0? 12.8ppm (482 samples).The background values of these elements in various soils are given in the paper.The author,taking the background values obtained as the standard value,compared the background values of soils in 18 regions.For example the background values of Cu,Zn and Ni have exceeded the standard value in Tulufan,Xinjiang Autonomous Region,on the other hand,they have not exceeded the standard value in Guangzhou,Zhanjiang and the Hainan Island in Guangdong Province (Ni as an exception in the Hainan Island).In accordance with the characteristics of background values in soils of China,the distribution of Cu in soils of China is proposed and the regions with high and low background values are given.