陆光艳,袁彬,黄林,孟庆田,任厚州.贵州省赫章县核桃农业园区富硒土地特征及开发建议[J].贵州地质,2020,37(3):258-265
贵州省赫章县核桃农业园区富硒土地特征及开发建议
Se-rich Soil Investigation and Developmemt Suggestion of Walnut Agricultural Park in Hezhang county,Guizhou Province
投稿时间:2020-04-24  
DOI:
中文关键词:  赫章县    重金属  耕地土壤  开发建议
英文关键词:Hezhang county  Selenium  Heavy metal  Cultivate land  Development suggestion
基金项目:贵州省赫章县耕地质量地球化学调查评价(任务书编号:黔地矿2017-18)。
作者单位
陆光艳 贵州省地质矿产勘查开发局104地质大队贵州都匀558000 
袁彬 贵州省地质矿产勘查开发局104地质大队贵州都匀558000 
黄林 贵州省地质矿产勘查开发局104地质大队贵州都匀558000 
孟庆田 贵州省地质矿产勘查开发局104地质大队贵州都匀558000 
任厚州 贵州省地质矿产勘查开发局104地质大队贵州都匀558000 
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中文摘要:
      通过采用环境地球化学方法,研究了赫章核桃产业园区耕地表层土壤样品中硒和重金属元素含量分布特征、相互关系和影响因素。通过研究,查明富硒耕地空间分布范围,富硒耕地占全区耕地的8342%,区内耕地类型以优先保护类和安全利用类为主,提出富硒土地及特色农产品的开发建议。Se、As、Pb、Zn等元素含量特征及空间分布与地层关系明显,不同母岩分布区土壤元素含量不同,宣威组、龙潭组地层中该组元素含量较高。表层土壤中Se与有机碳(Corg)呈较显著正相关,相关系数为061,Se与Pb、Zn、As呈正相关,相关系数在044055之间,Se与Cd、Hg呈弱正相关。重金属元素之间,Pb与Zn、As呈显著正相关,Ni与Cr显著正相关,Cd与Hg显著正相关。
英文摘要:
      By the environmental geochemical method, the distribution characteristics, correlation and influencing factor of Se and heavy metal in the surface cultivated soil samples if Hezhang walnut park are studied. According to the study, the spacial distribution area of Se-rich cultivated land is known, it’s found the Se-rich cultivated land is 83.42% of the total cultivated land of this area, the cultivated land type of this area mainly are priority protection type and safe use type, the development suggestions of Se-rich soil and special agricultural product are given. The content characteristic and spatial distribution of Se, As, Pb, Zn and other elements have obvious relation with the strata, the soil element content is different in different parent rock area, the content is higher in the layer of Xuanwei formation and Longtan formation. The Se in the surface soil has positive correlation with organic carbon, the correlation index is 0.61, Se has positive correlation with Pb, An and As, the correlation index is 0.44 to 0.55, Se has weak positive correlation with Cd and Hg. In the heavy metal, Pb has obvious positive correlation with Zn and As, Ni has positive correlation with Cr, Cd has positive correlation with Hg.
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