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首页> 外文会议>Remote Sensing of the Environment: 15th National Symposium on Remote Sensing of China >Application of Multi-sensor Image in Monitoring Mining Activities and Related Environment Changes: A Case Study at Daye, Hubei, China
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Application of Multi-sensor Image in Monitoring Mining Activities and Related Environment Changes: A Case Study at Daye, Hubei, China

机译：多传感器图像在采矿活动及相关环境变化监测中的应用-以湖北省大冶市为例

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摘要

This paper presents a case study of Daye, Hubei, China, to trace the mining activities and related environment changes during the past 10 years, with an emphasis on land cover changes. Three sets of satellite data have been used in this case study: TM (ETM+), SPOT-5 and QuickBird image data. A multi-temporal dataset consisting of two Land sat 5 Thematic Mapper (TM) images and one Enhanced Thematic Mapper Plus (ETM+) image including 1986, 1994 and 2002 have been used to compare the land cover changes of the Daye area, Hubei Province, China. The combined bands method, iron oxide index and the NDVI index method have been used to investigate the spectrum character and the space character of the different ground objects. The knowledge-based decision tree classification method has been used to get the highly accurate classification result with the TM and ETM+ image data; the interactive interpret Method has been used to interpret the mine distributing with the SPOT-5 and TM fusion image; the visual interpretation method has been used to interpret mine distributing and environment changes with the QuickBird panchromatic and the multi-spectral fusion image. The characteristics of the high accurate classification result and high accurate change detection make quantitative analysis of different mining area features possible. The results of change detection show that the water quality of the whole water body was still bad, although the water quality have been improved in some areas. Vegetation shows degradation trend especially in those areas close to the mining areas, large areas of wood land and plantations are reduced, the increasing bare areas appeared based on the mine database, the reclamation percentage of the abandoned mining is only 20% from 1986 to 2002. The ecological environment in the study area may become worse unless the efficient management of mining business and effective eco-environment protection in mining area are carried out instantly.
机译：本文以湖北省大冶市为例，追踪过去10年的采矿活动和相关的环境变化，重点是土地覆盖变化。本案例研究中使用了三组卫星数据：TM（ETM +），SPOT-5和QuickBird图像数据。一个多时相数据集由两幅Land sat 5专题地图（TM）图像和一张Enhanced Thematic Mapper Plus（ETM +）影像组成（包括1986、1994和2002），用于比较湖北省大冶地区的土地覆盖变化，中国。结合波段法，氧化铁指数法和NDVI指数法已被用于研究不同地面物体的光谱特征和空间特征。基于知识的决策树分类方法已被用来获得TM和ETM +图像数据的高精度分类结果。交互式解释方法已被用于解释具有SPOT-5和TM融合图像的地雷分布；视觉解释方法已被用于解释QuickBird全色和多光谱融合图像的矿山分布和环境变化。高精度分类结果和高精度变化检测的特征使对不同矿区特征的定量分析成为可能。变化检测的结果表明，尽管某些地区的水质有所改善，但整个水体的水质仍然很差。植被显示出退化的趋势，尤其是在靠近矿区的地区，林地的面积减少，人工林减少，基于矿山数据库的裸露区域不断增加，从1986年到2002年，废弃矿区的开垦率仅为20％ 。除非立即进行有效的采矿业务管理和有效的矿区生态环境保护，否则研究区的生态环境可能会恶化。

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