| 朱莉叶,刘雨晴,严冰,尹川,严寒,蒋海云.四川省德昌县大陆槽稀土矿山土地复垦研究[J].矿产勘查,2023,14(9):1749-1758 |
| 四川省德昌县大陆槽稀土矿山土地复垦研究 |
| Study on land reclamation of rare earth mines in Dechang continental trough，Sichuan |
| 投稿时间：2023-02-27 修订日期：2023-06-02 |
| DOI：10.20008/j.kckc.202309022 |
| 中文关键词: 土地复垦 适宜性评价 大陆槽 花椒种植 德昌县 四川省 |
| 英文关键词: land reclamation suitability evaluation Dalucao prickly ash planting Dechang County Sichuan Province |
| 基金项目:本文受矿床地球化学国家重点实验室开放基金（202007）资助。 |
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| 中文摘要: |
| 为探讨德昌县大陆槽稀土矿山复垦范围内花椒种植的适宜性，本文通过GPS野外定位、采样及样品分析处理等步骤获取土壤属性数据；采用相关性分析方法，探讨了研究区土壤微量元素与有机质、pH之间的关系。结果表明：pH与研究区微量元素之间的相关性不显著，有机质与微量元素的相关性系数绝对值介于0.684~0.987，全氮、有效锌、有效钼、有效猛与有机质显著正相关（r>0.8），速效钾、有效硼与有机质极显著正相关（r>0.9）；综合分析研究区气候、水文、人文生态、土壤质地和石砾含量等花椒种植因素，笔者认为该矿山土地经过复垦后，具备良好的花椒种植条件，选用花椒种植具有互相增益的效果，不仅可以使土壤增肥，而且土壤中的微量元素也可促进花椒的生长，是一种可持续的矿山复垦方式。 |
| 英文摘要: |
| In order to investigate the suitability of Zanthoxylum planting in the reclamation area of the Dalucao rare earth mine in Dechang County， the soil attribute data were obtained by GPS field positioning， sampling and sample analysis. The relationship between soil trace elements， organic matter and pH in the study area was discussed by correlation analysis method. The results showed that the correlation between pH and trace elements in the study area was not significant， and the absolute correlation coefficients between organic matter and trace elements ranged from 0.684 to 0.987. Total nitrogen， available zinc， available molybdenum and available manganese were significantly positively correlated with organic matter （r>0.8）， and available potassium and available boron were significantly positively correlated with organic matter （r>0.9）. Comprehensive analysis of the research area climate， hydrology， human ecology， soil texture and gravel content and other zanthoxylum planting factors， the author believes that the mine land after reclamation， with good zanthoxylum planting conditions， the selection of zanthoxylum planting has mutual gain effect， not only can make the soil fertilizer， and the soil trace elements can also promote the growth of zanthoxylum. It is a sustainable way of mine reclamation. |
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