基于光谱特征的矿山污染水体遥感监测

SPECTRAL FEATURES-BASED REMOTE SENSING MONITORING OF WATER POLLUTION FROM MINES

矿产资源开发引起的水体污染是资源利用过程中的主要环境问题之一。随着矿产资源的开采开发速度和规模日趋增大,矿山开采引起的环境污染日趋严重,尤其是矿山的水污染,对周边环境产生不可估量的影响。本文以辽宁省辽阳县兰河流域为研究区,选择Landsat8为数据源,根据遥感数据水体光谱特征的差异性,在水体信息提取研究的基础上,实现研究区矿山污染水体监测。实验结果表明:研究区水体光谱反射率均值明显高于非污染水体,且与污染水体非常接近,从而表明该区域水体污染较为严重,为区域生态环境改善提供决策支持。

Water pollution caused by mineral resources exploitation is one of the main environmental problems in the process of resource utilization.With the increasing speed and scale of mineral resources to be mined,environmental pollution due to mining deteriorates day by day,especially the water pollution by mines,which has an immeasurable impact on the surrounding environment.This paper targets the Lanhe River basin in Liaoyang County,Liaoning Province using Landsat8 as the data source.Mine water pollution monitoring is realized by reading the difference of water spectral characteristics of remote sensing data,and studying of water information extraction.The experimental results show that the mean spectral reflectance of the water body in the study area is significantly higher than that of the non-polluted water body and very close to that of the polluted water body,which indicates that the water body in this area is seriously polluted and provides a support for decision making in improvement of the regional ecological environment.