余飞, 张永文, 王宇, 罗凯, 陈达兵, 谢建. 重庆典型农业区富锗土壤分布特征及影响因素[J]. 地质与资源, 2021, 30(5): 609-616. DOI: 10.13686/j.cnki.dzyzy.2021.05.013
    引用本文: 余飞, 张永文, 王宇, 罗凯, 陈达兵, 谢建. 重庆典型农业区富锗土壤分布特征及影响因素[J]. 地质与资源, 2021, 30(5): 609-616. DOI: 10.13686/j.cnki.dzyzy.2021.05.013
    YU Fei, ZHANG Yong-wen, WANG Yu, LUO Kai, CHEN Da-bing, XIE Jian. DISTRIBUTION CHARACTERISTICS AND INFLUENCING FACTORS OF GERMANIUM-RICH SOIL IN TYPICAL AGRICULTURAL AREA OF CHONGQING MUNICIPALITY[J]. Geology and Resources, 2021, 30(5): 609-616. DOI: 10.13686/j.cnki.dzyzy.2021.05.013
    Citation: YU Fei, ZHANG Yong-wen, WANG Yu, LUO Kai, CHEN Da-bing, XIE Jian. DISTRIBUTION CHARACTERISTICS AND INFLUENCING FACTORS OF GERMANIUM-RICH SOIL IN TYPICAL AGRICULTURAL AREA OF CHONGQING MUNICIPALITY[J]. Geology and Resources, 2021, 30(5): 609-616. DOI: 10.13686/j.cnki.dzyzy.2021.05.013

    重庆典型农业区富锗土壤分布特征及影响因素

    DISTRIBUTION CHARACTERISTICS AND INFLUENCING FACTORS OF GERMANIUM-RICH SOIL IN TYPICAL AGRICULTURAL AREA OF CHONGQING MUNICIPALITY

    • 摘要: 通过采集重庆市典型农业区南川区8496件表层土壤样品,测定土壤锗及其他元素的含量,对锗含量特征及其影响因素进行分析探讨.研究结果表明:南川区土壤锗含量变化范围为0.13×10-6~13.59×10-6,平均值为1.54×10-6,高于重庆市"一小时经济圈"和重庆紫色土壤中锗的平均含量.研究区富锗(1.4×10-6以上)土壤面积达1 559.8 km2,主要分布在研究区南部.南川区高锗土壤主要分布在二叠系上统吴家坪组、长兴组和三叠系下统大冶组、嘉陵江组.土壤锗含量主要受成土母质控制,与土壤有机质呈显著正相关关系,与8项重金属元素存在伴生关系.中部高值区受密集的煤矿和人为影响较大.

       

      Abstract: By collecting 8 496 topsoil samples from Nanchuan district, a typical agricultural area in Chongqing Municipality, the study tests the contents of germanium (Ge) and other elements in soil and discusses their characteristics and influencing factors. The results show that the soil Ge content is 0.13×10-6-13.59×10-6, averagely 1.54×10-6, higher than the average Ge content in the "one-hour economic circle" and purple soil in Chongqing. The Ge-rich (>1.4×10-6) soil area is up to 1 559.8 km2, mainly distributed in the south of the study area. The high-Ge soil in Nanchuan district is mainly distributed in the Upper Permian Wujiaping Formation and Changxing Formation, as well as the Lower Triassic Daye and Jialingjiang formations. The soil Ge content is mainly controlled by parent materials, which is positively correlated with soil organic matter and associated with 8 heavy metals. The high-value area in the middle is greatly affected by concentrated coal mines and human activities.

       

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