| 稀土矿区环境调查SMAIMA方法体系、评价模型及其应用——以赣南离子吸附型稀土矿山为例 |
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| 关键词:ion adsorbed type rare earth mine environmental effect evaluation model SMAIMA working method |
| 基金项目:中国地质调查局项目(编号: 201200010063; 1212011220804; DD20160056; DD20160055; DD20160346);中央公益性科研院所基本科研业务费项目(编号: K1209) |
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| Establishment and Application of SMAIMA Working Method System and Environment Evaluation Model for Rare Earth Elements Mine:A Case Study of Ion-absorption Type REE Mines in Southern Jiangxi Province |
| In this paper, the typical rare earth mining area in southern Jiangxi Province was chosen as a case for research, using the rock (ore) stone - weathering crust - tailings - water as a system and combined with multi-disciplinary approach for a systematic study. The water resources - environmental effects of ion adsorption type rare earth resources were systematically studied. The authors put forward the working methods regarding to the environmental effects in the investigation, testing and assessment during mining process. The SMAIMA working method comprising field survey sampling (S) - experimental measurement (M) - characteristic analysis (A) - index system construction (I) - evaluation model study (M) - comprehensive analysis (A) was used to collect reliable data. It can provide the basis for the water sampling, characteristic analysis and the identification of water pollution sources near the rare earth mining area. The temporal and spatial characteristics of REE and physical and chemical indexes in ion - adsorbed rare earth mining area and surrounding surface water were analyzed, and the causes and ways of pollution were found out. The authors analyzed the temporal and spatial characteristics of REE and physical/chemical indexes in ion adsorbed rare earth mining area and surrounding surface water, figuring out the causes and ways of pollution. The purpose was to establish a water environmental quality evaluation index system and to construct a fuzzy comprehensive evaluation model of water environment for ion adsorbed rare earth mining area. On the basis of water environment evaluation, the secondary evaluation index system of four categories and 13 sub-categories including natural geography, basic geology, development land and geological environment was constructed according to the environmental characteristics of rare earth mining areas in Gannan. It is for the first time that a quantitative evaluation model of environmental effects of ion adsorbed rare earth mines based on support vector machine (SVM) is established. With this evaluation model, the mine environment of three different types of rare earth mining areas can be evaluated and rated (Longnan represents heavy rare earth mining area, An’yuan represents middle rare earth mining area and Xunwu represents light rare earth mining area). On such a basis, the authors put forward the countermeasures and suggestions for environmental protection and restoration of the ion adsorbed type rare earth mine. |
| YU Yang,WANG Deng-hong,TIAN Zhao-xue,HUANG Fan,ZHAO Zhi,SUN Yan,LI De-xian,HE Han-han,DENG Mao-chun.2017.Establishment and Application of SMAIMA Working Method System and Environment Evaluation Model for Rare Earth Elements Mine:A Case Study of Ion-absorption Type REE Mines in Southern Jiangxi Province[J].Acta Geoscientica Sinica,38(3):335-344. |
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