| 湖南省慈利县富硒土壤分布及成因规律研究 |
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| 引用本文： | 李榕,黄栋良,孙元贵,佘菊秋,何梓华,罗治勇.湖南省慈利县富硒土壤分布及成因规律研究[J].国土资源导刊(湖南),2016(4):33-37. |
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| 作者姓名： | 李榕 黄栋良 孙元贵 佘菊秋 何梓华 罗治勇 |
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| 作者单位： | 1. 湖南省地质科学研究院,湖南 长沙,410007;2. 慈利县国土资源局,湖南 张家界,427200 |
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| 摘 要： | 通过调查发现,慈利县分布有大面积的富硒土壤,960 km~2范围重点区中富硒土壤面积占524.2 km~2,土壤硒平均含量达0.54 mg/kg。各类成土母岩中,属二叠系的炭质页岩与灰岩硒含量最高,与其对应的是在各地质背景中二叠系表层土壤硒含量同样最高,其次为三叠系、志留系土壤,硒元素在土壤与母岩中具有显著继承性。各地层剖面均显示出硒元素呈现出表聚性规律,硒元素在表层土壤中大于深层土壤,而深层土壤硒含量则大于母岩硒含量。
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| 关 键 词： | 富硒土壤 慈利县 地层 岩石 |
The Research of Selenium Soil Distribution and the Causes of Law of Cili,Hunan |
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| Abstract: | A recent survey found that large area of selenium-rich soil distributes in Cili city, 524.2km2 selenium-rich soil exists in 960 km2 key survey area, the average selenium content of soil is up to 0.54 mg/kg. The selenium content of carbonaceous shale and limestone of Permian is higher than the other kind of rocks, the selenium content of soil of Permian is the same highest among the different kind of geological background, and the soil of Silurian and Triassic take second place, selenium has remarkable inheritance in soil and parent rock. All proifle of stratums show that selenium tends to be enriched in top soil, the selenium content of top soil is higher than deep soil while the selenium content of the parent rock is the lowest. |
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| Keywords: | selenium-rich soil Cili stratum rock |
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