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

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

来源 :Chinese Geographical Science | 被引量 : 6次 | 上传用户：psetpsetc

【摘 要】

：

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

【作 者】

：

王景华 

【机 构】

：

InstituteofGeography,ChineseAcademyofSciences,Beijing100101,PRC

【出 处】

：

Chinese Geographical Science

【发表日期】

：

1992年04期

【关键词】

：

Soil Background VALUES of CU ZN and NI TREND DISTRIBUTION Soil  Background value 

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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±10.2 mg/ kg (482 samples), Zn

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