高光谱遥感土壤有机质信息提取研究
Extraction of Soil Organic Matter Information by Hyperspectral Remote Sensing
查看参考文献22篇
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文摘
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土壤反射光谱特征分析是反演土壤信息参量的基础资料。本文阐述了使用航空成像光谱仪OMIS-Ⅰ数据并结合ASD Field Spec FR（350-2500nml便携式光谱仪获取野外光谱数据．对山东省烟台市招远东良乡原状农用土有机质含量进行反演，从而实现有机质填图。通过对土壤原反射率对数一阶微分变换并确定其与SOM的相关性，最终建立相应的多元线性回归方程。分析认为土壤有机质的测定选用762nm、874nm及1667nm波段在本次研究中效果最佳。该模型也可作为土壤有机质估测和评价的参考。 |
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其他语种文摘
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This paper reported research conducted to document the ability of the OMIS-1 （400- 2500nm） reflectance sensor and the spectrophotometer ASD FieldSpec FR to predict soil organic matter （SOM） of surface soil, and correspondingly to achieve SOM mapping. Data acquired from field survey and hyperspectral airborne sensor were preeessed to determine the surface soil characteristic of an agricultural area located in Dongliang village, Zhaoyuan of Shandong province. The method adopted was based on correlation and a forward stepwise multiple linear regression analysis linking SOM content. The results showed that SOM could be well evaluated by the logarithm 1st differential reflectivity using linear regression model. This model would be available for evaluating and predicting soil organic matter by spectral reflectance and would provide guidance for the management of SOM and the prediction of fertility in precision agriculture. |
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来源
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地理科学进展
,2008,27(5):27-34 【核心库】
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关键词
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高光谱遥感
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土壤有机质
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多元线性回归分析
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烟台
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地址
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1.
（北京）中国地质大学地球科学与资源学院, 北京, 100083
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国土资源部航空物探遥感中心, 北京, 100083
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1007-6301 |
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学科
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农业基础科学;自动化技术、计算机技术 |
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文献收藏号
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CSCD:3387397
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