Combining Fractional Order Derivative and Spectral Variable Selection for Organic Matter Estimation of Homogeneous Soil Samples by VIS–NIR Spectroscopy

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成果类型：

期刊论文

作者：

Hong, Yongsheng;Chen, Yiyun*;Yu, Lei;Liu, Yanfang*;Liu, Yaolin;...

通讯作者：

Chen, Yiyun;Liu, Yanfang

作者机构：

[Hong, Yongsheng; Chen, Yiyun; Liu, Yanfang; Cheng, Hang; Liu, Yaolin; Liu, Yi] Wuhan Univ, Sch Resource & Environm Sci, Wuhan 430079, Hubei, Peoples R China.

[Hong, Yongsheng; Cheng, Hang; Chen, Yiyun; Liu, Yi] Chinese Acad Sci, State Key Lab Soil & Sustainable Agr, Nanjing 210008, Jiangsu, Peoples R China.

[Hong, Yongsheng; Cheng, Hang; Chen, Yiyun; Liu, Yi] Wuhan Univ, Collaborat Innovat Ctr Geospatial Technol, Wuhan 430079, Hubei, Peoples R China.

[Yu, Lei] Cent China Normal Univ, Sch Urban & Environm Sci, Wuhan 430079, Hubei, Peoples R China.

[Yu, Lei] Cent China Normal Univ, Key Lab Geog Proc Anal & Simulat Hubei Prov, Wuhan 430079, Hubei, Peoples R China.

通讯机构：

[Chen, YY; Liu, YF; Chen, Yiyun; Liu, Yanfang] W

[Chen, Yiyun] C

Wuhan Univ, Sch Resource & Environm Sci, Wuhan 430079, Hubei, Peoples R China.

Chinese Acad Sci, State Key Lab Soil & Sustainable Agr, Nanjing 210008, Jiangsu, Peoples R China.

Wuhan Univ, Collaborat Innovat Ctr Geospatial Technol, Wuhan 430079, Hubei, Peoples R China.

语种：

英文

关键词：

visible and near-infrared spectroscopy;soil organic matter;fractional order derivative;variable selection;support vector machine

期刊：

Remote Sensing

ISSN：

2072-4292

年：

2018

卷：

期：

页码：

479

DOI：

10.3390/rs10030479

基金类别：

National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [41771440, 41501444]

机构署名：

本校为其他机构

院系归属：

城市与环境科学学院

摘要：

Visible and near-infrared (VIS-NIR) spectroscopy has been extensively applied to estimate soil organic matter (SOM) in the laboratory. However, if field/moist VIS-NIR spectra can be directly applied to estimate SOM, then much of the time and labor would be avoided. Spectral derivative plays an important role in eliminating unwanted interference and optimizing the estimation model. Nonetheless, the conventional integer order derivatives (i.e., the first and second derivatives) may neglect some detailed information related to SOM. Besides, the full-spectrum generally contains redundant spectral ...

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Combining Fractional Order Derivative and Spectral Variable Selection for Organic Matter Estimation of Homogeneous Soil Samples by VIS–NIR Spectroscopy

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