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SOME PROBLEMS CONCERNING AGRICULTURALGEOCHEMICAL INVESTIGATION |
FAN Yun-Hui, WANG Yan-Qing |
Zhejiang Academy of Geophysical and Geochemical Exploration, Hangzhou 310005,China |
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Abstract According to suggestions made by agricultural experts, the authors defined the nutritional grades of trace elements, converted the element contents of stream sediments into soil element contents, and defined the nutritional level standard of trace elements. A comparative study was made concerning the nutritional conditions of eight cities in JinhuaQuzhou Basin, and the results show that, except for Mo which has relatively low contrast ratio, the contrast ratios of other six elements are all higher than 75%.
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Received: 04 June 2008
Published: 02 December 2009
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[1] |
ZHANG Xue-jun, SUN Bin-bin, CHENG Zhi-zhong, ZHOU Guo-hua. NATIONWIDE GEOCHEMICAL SURVEY OF MINE TAILINGS:DEMANDS AND IDEAS[J]. Geophysical and Geochemical Exploration, 2011, 35(6): 715-717,726. |
[2] |
ZHANG Hui-shan, ZHANG Jie, SHI Jun-bo, Li cheng-dong. ANOMALY CHARACTERISTICS OF STREAM SEDIMENT SURVEY IN HONGSHISHAN AREA OF GOLMUD, QINGHAI PROVINCE, AND THE OPTIMIZATION OF PROSPECTING TARGET AREAS[J]. Geophysical and Geochemical Exploration, 2011, 35(6): 768-772. |
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