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江西省定南县是我国离子型稀土矿的主要产区。在稀土开采的同时,产生了大量水土流失,诱发的多处泥石流淹没林地和耕地。运用QuickBird高分辨率遥感信息与3D可视化技术相结合对定南矿区开采面、固体废弃物及其造成的泥石流进行解译,根据泥石流分布特点选取危险性评价因子,建立了评价模型,依据预测结果划分了泥石流的危险性空间分布。预测结果得到遥感影像和野外实际调查的检验,模型在赣南离子型稀土矿区有一定的推广意义。 更多还原

【Abstract】 Remote sensing information can quickly and accurately identify the scope and intensity of the ground caused by the mining disturbance.GIS provides a tool for the river watershed division and quantitative calculation.Dingnan county of Jiangxi Province is the main producing areas of ion-type rare earth ore in China.It generates a lot of soil erosion with the rare earth mining at the same time,debris flow induced flooded a lot of woodland and farmland.Using QuickBird high-resolution remote sensing ... 更多还原