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Geoscience ›› 2012, Vol. 26 ›› Issue (5): 850-858.

• Geochemistry • Previous Articles     Next Articles

Geochemical Circling of Soil Se on the Southern Song Nen Plain, Heilongjiang Province

 XIA  Xue-Qi-1 , YANG  Zhong-Fang-1, XUE  Yuan-1, CUI  Yu-Jun-2 , LI  Yan-Sheng-2, HOU  Jing-Xie-1, TU  Chao-1   

  1. 1 chool of Earth Sciences and Resources, China University of Geosciences, Beijing100083, China;
    2 eilongjiang Institute of Geological Survey, Harbin, Heilongjiang150036, China
  • Received:2012-06-04 Revised:2012-07-16 Online:2012-10-19 Published:2012-10-23

Abstract:

Selenium is an important trace element in the eco-environment in the aspect of the human, plant and animal health. In this paper, circling of the soil Se was studied by sampling the input endmembers of soil Se, such as atmospheric deposition, irrigation water and chemical fertilizer, as well as the output endmembers such as the harvested plant parts and soil seepage water, as the further study based on the multi purpose geochemical survey (MPGS). The input and output fluxes of the endmembers were calculated and the accumulation rate of soil Se was predicted. Three aspects were found as the following:  in general, the study area has a low soil Se level with the area of soil Se deficiency and potential deficiency covering 35.20% of the whole area; the maximum soil Se input comes from the wet and dry atmospheric deposition, and the maximum soil Se output endmember is the soil seepage water; soil Se in the study area shows a state of net accumulation, and the area of Se deficiency and potential deficiency will decrease from 35.20% to 31.7% in 20 years.

Key words: soil, selenium, circling, the southern SongNen Plain, Heilongjiang Province, wet and dry atmospheric deposition, soil seepage water