基于实测光谱的矿业开发集中区土壤元素含量反演  

Inversion of Element Content in Soil of Mining Industry Development Area by Field Spectra

作　　者：杨雪[1,2] 谢洪斌[1,2] 罗真富[1,2] 谭德军[1,2] 简季[3] 

机构地区：[1]重庆地质矿产研究院外生成矿与矿山环境重庆市重点实验室,重庆400042 [2]煤炭资源与安全开采国家重点实验室重庆研究中心,重庆400042 [3]成都理工大学地学空间信息技术国土资源部重点实验室,四川成都610059

出　　处：《环境监测管理与技术》2016年第4期10-14,共5页The Administration and Technique of Environmental Monitoring

基　　金：国土资源公益性行业科研专项"典型矿山地质环境监测关键技术研究"基金资助项目(NO.200911036);重庆市国土房管局科技支撑"基于多时相高光谱遥感的矿产资源开发与环境变化研究"基金资助项目(2011-13)

摘　　要：采用ASD FieldSpec 3型便携式地物光谱仪对矿集区的296个土壤样本进行高光谱反射率测定,通过土壤光谱特征分析,提取污染元素潜在光谱特征,并与土样化学测试结果进行相关分析,得到As、Cd和Zn的光谱特征参数,并从Aster影像对应的特征波段上实现该3种元素含量的反演。结果表明:As、Cd和Zn预测值的相对误差平均值分别为0.116、0.106和0.088,该方法可为大面积的土壤环境质量调查提供技术参考。Based on the reflectance spectrums data of 296 soil samples measured by ASD FieldSpec Pro FR3 in a ore-concentrated area, this paper extracted the potential pollution elements^pectral characteristics by somereasonable preprocessing with spectral data. By analyzing the correlation with the chemical determination results,spectral absorption parameter of As, Cd and Zn were obtained. The contents of these three elements could be inversedfrom the corresponding specific bands of Aster image. The results indicated that the average relative errorsof A s, Cd and Zn predicted value were 0. 116, 0. 106 and 0.088 respectively. This method could provide technicalreference for large area soil quality environmental investigation.

关 键 词：高光谱 光谱特征参数 元素含量反演 土壤 矿业开发集中区 

分 类 号：X833[环境科学与工程—环境工程] TP79[自动化与计算机技术—检测技术与自动化装置]