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| 基于吸收特征参数的有机质含量光谱估算模型研究 | |
| 引用本文： | 贺军亮,蒋建军,周生路,赵旭阳,李朝阳.基于吸收特征参数的有机质含量光谱估算模型研究[J].农机化研究,2009,31(3). |
| 作者姓名： | 贺军亮 蒋建军 周生路 赵旭阳 李朝阳 |
| 作者单位： | 1. 石家庄学院,资源与环境系,石家庄,050035 2. 南京师范大学,地理科学学院,南京,210097 3. 南京大学,地理与海洋学院,南京,210008 |
| 基金项目： | 国家重点基础研究发展规划(973计划)，教育部高等学校博士学科点专项科研基金，石家庄学院基金重点项目 |
| 摘 要： | 连续统去除法是简便、准确而有效地提取光谱吸收特征参数的方法之一.为此,研究利用ASD FieldSpec Pro地物光谱仪在自然环境条件下对不同有机质含量的土壤样本进行光谱测量,提取特征吸收面积来评价与有机质含量的关系,发现基于包含有机质含量敏感波段在内的450～580nm波段范围特征吸收面积建立的有机质含量对数诊断模型预测精度较高.结果表明,土壤有机质吸收特征参数估算模型为土壤肥力的快速测定提供了新的途径. |
| 关 键 词： | 土壤 有机质 高光谱 吸收特征参数 连续统去除 |
Studying on Retrieval of Soil Organic Matter Content Using the Absorption Spectra |
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| He Junliang,Jiang Jianjun,Zhou Shenglu,Zhao Xuyang,Li Zhaoyang.Studying on Retrieval of Soil Organic Matter Content Using the Absorption Spectra[J].Journal of Agricultural Mechanization Research,2009,31(3). | |
| Authors: | He Junliang Jiang Jianjun Zhou Shenglu Zhao Xuyang Li Zhaoyang |
| Institution: | 1.Department of Resources and Environment;Shijiazhuang College;Shijiazhuang 050035;China;2.College of Geographical Sciences;Nanjing Normal University;Nanjing 210097;3.College of Geographical and Oceanographical Sciences;Nanjing University;Nanjing 210008;China |
| Abstract: | TContinuum-removal is an effective method in soil spectral analysis. In this study,the spectra of soils samples were measured by an ASD PRO FR2500 in the 350~2500nm regions in the field.Then the hyperspectral reflectance data were transformed to absorption spectra.According to the result of the regression analysis,it is observed that there is a strong absorption around 511 nm due to organic matter. Based on the absorption area in the 450~580 nm regions,the content of organic matter is calculated accurately.... |
| Keywords: | soil organic matter hyperspectral absorption spectra continuum-removal |
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