杨泽, 刘国栋, 戴慧敏, 张一鹤, 肖红叶, 阴雨超. 黑龙江兴凯湖平原土壤硒地球化学特征及富硒土地开发潜力[J]. 地质通报, 2021, 40(10): 1773-1782.
    引用本文: 杨泽, 刘国栋, 戴慧敏, 张一鹤, 肖红叶, 阴雨超. 黑龙江兴凯湖平原土壤硒地球化学特征及富硒土地开发潜力[J]. 地质通报, 2021, 40(10): 1773-1782.
    YANG Ze, LIU Guodong, DAI Huimin, ZHANG Yihe, XIAO Hongye, YIN Yuchao. Selenium geochemistry of soil and development potential of Se-rich soil in Xingkai Lake Plain[J]. Geological Bulletin of China, 2021, 40(10): 1773-1782.
    Citation: YANG Ze, LIU Guodong, DAI Huimin, ZHANG Yihe, XIAO Hongye, YIN Yuchao. Selenium geochemistry of soil and development potential of Se-rich soil in Xingkai Lake Plain[J]. Geological Bulletin of China, 2021, 40(10): 1773-1782.

    黑龙江兴凯湖平原土壤硒地球化学特征及富硒土地开发潜力

    Selenium geochemistry of soil and development potential of Se-rich soil in Xingkai Lake Plain

    • 摘要: 土地质量地球化学调查结果显示,兴凯湖平原土壤总体上属足硒土壤,富硒土壤面积不足1%。土壤硒的分布对成土母质具有较好的继承性,新近系富锦组(N1f)发育的土壤中Se平均含量最高,平均值为0.375 mg/kg,该地层控制了研究区富硒土壤的主要分布,而石炭系北兴组凝灰岩发育的土壤中Se含量最低,平均值为0.183 mg/kg。同时,土壤Se含量还受地球化学环境、土壤类型、土壤性质等自然条件综合影响,其中白浆土的Se含量最高,暗棕壤最低;硒与土壤中Corg、N、P、TFe2O3、S、As、Cr、Cu、Hg、Pb、Cd和Ni呈显著正相关,与pH、CaO、Na2O及Zn呈显著负相关。此外,研究区土地综合质量优良,5处潜在富硒区均符合AA级绿色食品产地,且发现天然富硒水稻,开发富硒农产品的潜力巨大。

       

      Abstract: The results of geochemical survey of land quality show that the soil in Xingkai Lake Plain is generally sufficient in selenium, and the area of Se-rich soil is less than 1%. The distribution of Se in soil has a good inheritance from the parent material of soil. The highest average Se content is found in the soils originated from the Neogene Fujin Formation (N1f), with an average value of 0.375 mg/kg. This stratum controls the main distribution of Se-rich soils in the study area. The lowest Se content is found in the soils originated from the Carboniferous Beixing Formation tuff, with an average value of 0.183 mg/kg. Meanwhile, soil Se content is also affected by geochemical environment, soil type, soil properties and other natural conditions. The Se content of white clay soil is the highest, and that of dark brown soil is the lowest.Se is significantly positively correlated with soil Corg, N, P, TFe2O3, S, As, Cr, Cu, Hg, Pb, Cd and Ni, and negatively correlated with pH, CaO, Na2O and Zn.In addition, the comprehensive quality of land in the study area is excellent. The five potential Se-rich areas are in line with the AA green food producing areas, and natural Se-rich rice has been found, which has great potential for the development of Se-rich agricultural products.

       

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