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Combining Environmental Factors and Lab VNIR Spectral Data to Predict SOM by Geospatial Techniques

GUO Long ZHANG Haitao CHEN Yiyun QIAN Jing

GUO Long, ZHANG Haitao, CHEN Yiyun, QIAN Jing. Combining Environmental Factors and Lab VNIR Spectral Data to Predict SOM by Geospatial Techniques[J]. 中国地理科学, 2019, 20(2): 258-269. doi: 10.1007/s11769-019-1020-8
引用本文: GUO Long, ZHANG Haitao, CHEN Yiyun, QIAN Jing. Combining Environmental Factors and Lab VNIR Spectral Data to Predict SOM by Geospatial Techniques[J]. 中国地理科学, 2019, 20(2): 258-269. doi: 10.1007/s11769-019-1020-8
GUO Long, ZHANG Haitao, CHEN Yiyun, QIAN Jing. Combining Environmental Factors and Lab VNIR Spectral Data to Predict SOM by Geospatial Techniques[J]. Chinese Geographical Science, 2019, 20(2): 258-269. doi: 10.1007/s11769-019-1020-8
Citation: GUO Long, ZHANG Haitao, CHEN Yiyun, QIAN Jing. Combining Environmental Factors and Lab VNIR Spectral Data to Predict SOM by Geospatial Techniques[J]. Chinese Geographical Science, 2019, 20(2): 258-269. doi: 10.1007/s11769-019-1020-8

Combining Environmental Factors and Lab VNIR Spectral Data to Predict SOM by Geospatial Techniques

doi: 10.1007/s11769-019-1020-8
基金项目: Under the auspices of the Natural Science Foundation of Hubei (No. 2018CFB372), the Fundamental Research Funds for the Central Universities (No. 2662016QD032), the Key Laboratory of Aquatic Plants and Watershed Ecology of Chinese Academy of Sciences (No. Y852721s04), the Chinese National Natural Science Foundation (No. 41371227), the National Undergraduate Inno-vation and Entrepreneurship Training Program (No. 201810504023, 201810504030)
详细信息
    通讯作者:

    QIAN Jing.E-mail:2011202050149@whu.edu.cn

Combining Environmental Factors and Lab VNIR Spectral Data to Predict SOM by Geospatial Techniques

Funds: Under the auspices of the Natural Science Foundation of Hubei (No. 2018CFB372), the Fundamental Research Funds for the Central Universities (No. 2662016QD032), the Key Laboratory of Aquatic Plants and Watershed Ecology of Chinese Academy of Sciences (No. Y852721s04), the Chinese National Natural Science Foundation (No. 41371227), the National Undergraduate Inno-vation and Entrepreneurship Training Program (No. 201810504023, 201810504030)
More Information
    Corresponding author: QIAN Jing
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出版历程
  • 收稿日期:  2017-06-09
  • 刊出日期:  2019-04-27

Combining Environmental Factors and Lab VNIR Spectral Data to Predict SOM by Geospatial Techniques

doi: 10.1007/s11769-019-1020-8
    基金项目:  Under the auspices of the Natural Science Foundation of Hubei (No. 2018CFB372), the Fundamental Research Funds for the Central Universities (No. 2662016QD032), the Key Laboratory of Aquatic Plants and Watershed Ecology of Chinese Academy of Sciences (No. Y852721s04), the Chinese National Natural Science Foundation (No. 41371227), the National Undergraduate Inno-vation and Entrepreneurship Training Program (No. 201810504023, 201810504030)
    通讯作者: QIAN Jing.E-mail:2011202050149@whu.edu.cn

摘要: Soil organic matter (SOM) is an important parameter related to soil nutrient and miscellaneous ecosystem services. This paper attempts to improve the performance of traditional partial least square regression (PLSR) model by considering the spatial autocorrelation and soil forming factors. Surface soil samples (n=180) were collected from Honghu City located in the middle of Jianghan Plain, China. The visible and near infrared (VNIR) spectra and six environmental factors (elevation, land use types, roughness, relief amplitude, enhanced vegetation index, and land surface water index) were used as the auxiliary variables to construct the multiple linear regression (MLR), PLSR and geographically weighted regression (GWR) models. Results showed that:1) the VNIR spectra can increase about 39.62% prediction accuracy than the environmental factors in predicting SOM; 2) the comprehensive variables of VNIR spectra and the environmental factors can improve about 5.78% and 44.90% relative to soil spectral models and soil environmental models, respectively; 3) the spatial model (GWR) can improve about 3.28% accuracy than MLR and PLSR. Our results suggest that the combination of spectral reflectance and the environmental variables can be used as the suitable auxiliary variables in predicting SOM, and GWR is a promising model for predicting soil properties.

English Abstract

GUO Long, ZHANG Haitao, CHEN Yiyun, QIAN Jing. Combining Environmental Factors and Lab VNIR Spectral Data to Predict SOM by Geospatial Techniques[J]. 中国地理科学, 2019, 20(2): 258-269. doi: 10.1007/s11769-019-1020-8
引用本文: GUO Long, ZHANG Haitao, CHEN Yiyun, QIAN Jing. Combining Environmental Factors and Lab VNIR Spectral Data to Predict SOM by Geospatial Techniques[J]. 中国地理科学, 2019, 20(2): 258-269. doi: 10.1007/s11769-019-1020-8
GUO Long, ZHANG Haitao, CHEN Yiyun, QIAN Jing. Combining Environmental Factors and Lab VNIR Spectral Data to Predict SOM by Geospatial Techniques[J]. Chinese Geographical Science, 2019, 20(2): 258-269. doi: 10.1007/s11769-019-1020-8
Citation: GUO Long, ZHANG Haitao, CHEN Yiyun, QIAN Jing. Combining Environmental Factors and Lab VNIR Spectral Data to Predict SOM by Geospatial Techniques[J]. Chinese Geographical Science, 2019, 20(2): 258-269. doi: 10.1007/s11769-019-1020-8
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