| 广东揭阳市土壤铜的分布特征及其影响因素 |
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| 引用本文： | 黄昌辰,温汉辉,蔡立梅,罗杰,蒋慧豪.广东揭阳市土壤铜的分布特征及其影响因素[J].现代地质,2021,35(1):293-300. |
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| 作者姓名： | 黄昌辰 温汉辉 蔡立梅 罗杰 蒋慧豪 |
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| 作者单位： | 1. 长江大学 油气资源与勘探技术教育部重点实验室,湖北 武汉 4301002. 长江大学 资源与环境学院,湖北 武汉 4301003. 广东省有色金属地质局940队,广东 清远 5115004. 中国科学院广州地球化学研究所 矿物学与成矿学重点实验室,广东 广州 510640 |
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| 基金项目： | 国家自然科学基金项目(41203061);教育部油气资源勘探技术重点实验室开放基金项目(K2018-19);湖北省自然科学基金项目(2015CFB603);湖北省教育厅科学技术研究重点项目(D20161301);中国科学院广州地球化学研究所有机地球化学国家重点实验室开放基金项目(OGL-201408);长江大学大学生创新创业训练项目(2016006);长江大学大学生创新创业训练项目(2017223) |
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| 摘 要： | 以广东省揭阳市土壤为研究对象,测定了1 330个表层土壤样(0~20 cm)和331个深层土壤样(150~200 cm)的Cu含量,据此研究土壤Cu的分布特征和影响因素。利用富集因子、GIS空间分析和方差分析等方法,综合分析了研究区土壤铜富集特征、空间分布特征及其影响因素,遵循国家标准评价了土壤铜污染风险。结果表明:表层土壤铜含量均值为9.49 mg/kg,远低于《土壤环境质量农用地土壤污染风险管控标准》(GB15618—2018)中Cu风险筛选值(50 mg/kg);表层土壤铜的富集程度处于未富集和轻微富集水平,不存在明显的铜富集情况;表层土壤铜高值区主要分布在榕城区中部、揭西县东南部以及惠来县西部和北部;成土母质和土地利用方式是研究区表层土壤铜含量的主要影响因素,土壤类型对其也有一定影响,不同成土母质中,第四纪沉积物土壤铜含量最高;不同土地利用方式下,建筑用地土壤铜含量显著高于其他土地利用方式;不同土壤类型中,水稻土土壤铜含量最高。
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| 关 键 词： | 揭阳市 土壤铜 分布特征 影响因素 |
| 收稿时间： | 2020-03-05 |
| 修稿时间： | 2020-06-06 |
Distribution Characteristics and Influencing Factors of Soil Cu in Jieyang City,Guangdong Province |
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| HUANG Changchen,WEN Hanhui,CAI Limei,LUO Jie,JIANG Huihao.Distribution Characteristics and Influencing Factors of Soil Cu in Jieyang City,Guangdong Province[J].Geoscience——Journal of Graduate School,China University of Geosciences,2021,35(1):293-300. |
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| Authors: | HUANG Changchen WEN Hanhui CAI Limei LUO Jie JIANG Huihao |
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| Abstract: | Taking soil collected from Jieyang, Guangdong, China as the study object, the Cu content of 1,330 surface soil samples (0-20 cm) and 331 deep soil samples (150-200 cm) were measured, and the distribution characteristics and influencing factors of soil Cu were studied accordingly. The enrichment factor, GIS spatial analysis and variance analysis were used to comprehensively analyse the enrichment characteristics, spatial distribution characteristics and influencing factors of soil Cu in the study area, and the risk of soil Cu pollution was evaluated according to national standards. The results showed that the average Cu content of surface soil was 9.49 mg/kg, which was far lower than the Cu risk screening value (50 mg/kg) in the “Soil Environmental Quality Risk Control Standard for Farmland Soils (Trial) (GB15618-2018)”. The enrichment degree of copper in surface soil was at the level of non-enrichment and slight enrichment, and there was no obvious copper enrichment. The high value areas of copper in surface soil were mainly distributed in the central Rongcheng district, southeast Jiexi County, and west and north Huilai County. Soil parent material and land use pattern were the main influencing factors of copper content in the surface soil of the study area, and soil type also had certain influence on it. In different parent materials, the Cu content in the Quaternary sediments was the highest; Under different land use types, the Cu content of construction land was significantly higher than other land use types; In different soil types, the Cu content in paddy soil was the highest. |
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| Keywords: | Jieyang City soil Cu distribution characteristic influencing factor |
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