王金元,袁颖,何承真,郭永福,盘福常,王栋.贵阳市表层耕地土壤硒的地球化学特征[J].贵州地质,2020,37(3):334-339
贵阳市表层耕地土壤硒的地球化学特征
The Geochemical Characteristics of Cultivated Land Selenium in the Topsoil of Guiyang City
  
DOI:
中文关键词:  贵阳市  耕地质量    地球化学
英文关键词:Guiyang  Quality of cultivated land  Selenium  Geochemistry
基金项目:黔地矿耕调2017-01、黔地矿耕调2017-02项目资助。
作者单位
王金元 贵阳省煤田地质局159队贵阳550081 
袁颖 贵阳省煤田地质局159队贵阳550081 
何承真 贵阳省煤田地质局159队贵阳550081 
郭永福 贵阳省煤田地质局159队贵阳550081 
盘福常 贵阳省煤田地质局159队贵阳550081 
王栋 贵阳省煤田地质局159队贵阳550081 
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中文摘要:
      通过贵阳市耕地质量地球化学调查获得的数据,发现全部24114件表层耕地土壤硒含量区间为008896 mg/kg,硒含量均值062 mg/kg,硒含量大于04 mg/kg占比为7932%,硒背景值为056 mg/kg;贵阳市富硒耕地(硒含量大于04 mg/kg)面积为33044万亩,占贵阳市耕地面积的8392%;硒含量高低呈带状分布,元素来源和地层相关。
英文摘要:
      Based on the data obtained from the geochemical survey of cultivated land quality in Guiyang city, it is found that the range of selenium content in the soil of all 24114 surface cultivated land is 0.088.96 mg/kg, the mean value of selenium content is 0.62 mg/kg, the proportion of selenium content greater than 0.4 mg/kg is 79.32%, and the background value of selenium is 0.56 mg/kgThe area of selenium-rich cultivated land in Guiyang City (the content of selenium is greater than 0.4 mg / kg) is 3.344 million mu, accounting for 83.92% of the cultivated land area in Guiyang;The selenium content is distributed in bands, and the source of the elements is related to the stratum
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