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| 重庆市永川区表层土壤元素的分布特征 |
| Research to Chemical Element Distribution of Surfical Soil in Yongchuan,Chongqing |
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| DOI： |
| 中文关键词: 表层;土壤;pH;母质; |
| 英文关键词: soil;surface layer;pH;parent material; |
| 基金项目:重庆市1:5万永川幅临江幅农业地质调查 |
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| 中文摘要: |
| 基于大密度表层土壤样测试数据,研究了重庆市永川区各地层单元的土壤元素分布以及不同土壤酸碱度下土壤元素富集特性。结果表明:元素富集水平及富集元素数量随着地层年代的由老到新呈减小的趋势。随pH值的升高,Ca、Mg、Li、F、Ni、Th、V等元素含量逐渐升高,具有显著正相关关系(P<0.01);而Si、Zr含量则随pH的升高呈降低的趋势,呈显著负相关关系(P<0.01)。 |
| 英文摘要: |
| In order to understand the difference of chemical elements distribution of surficial soil,chemical elements enrichment in different stratigraphic units and soil pH characteristics were studied by investigations with sampling density of 4 point per square kilometer in Yongchuan,Chongqing,China.The results showed that element enrichment level and the number of enriched elements in surficial soil was reduced from Lower Triassic Jialingjiang(T1j)to Upper Jurassic Penglaizhen(J3p).The soil pH value was positivel... |
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