文献类型： 外文期刊
作者： He, Gang 1 ; Yang, Shao-bing 1 ; Wang, Yuan-zhong 1 ;
作者机构： 1.Yunnan Acad Agr Sci, Med Plants Res Inst, Kunming 650200, Peoples R China
2.Yunnan Agr Univ, Coll Food Sci & Technol, Kunming 650201, Peoples R China
关键词： Medicinal plant; FT-NIR spectroscopy; Machine learning; Suitable habitats; Origin identification
期刊名称：COMPUTERS AND ELECTRONICS IN AGRICULTURE （ 影响因子：7.7； 五年影响因子：8.4 ）
ISSN： 0168-1699
年卷期： 2024 年 223 卷
页码：
收录情况： SCI
摘要： Lanxangia tsao-ko (Crevost & Lemarie) M.F.Newman & Skornick ( L. tsao-ko ) is widely cultivated for its important medicinal and economic values. However, there is a lack of regional planning studies, ecological suitability studies, and incomplete species distribution surveys. In this study, the maximum entropy model was used to simulate the species distribution of L. tsao-ko under current climatic scenarios. On this basis, Fourier transform near infrared (FT-NIR) spectroscopy combined with chemometrics and deep learning was further employed to comprehensively assess the geographical origin of L. tsao-ko . The results showed that under the current climate scenario, the suitable habitats of L. tsao-ko were mainly distributed in the western, northwestern and southeastern regions of Yunnan province, and southeastern areas, with an area of 8.20 x 10(4) km(2) . Absorbance values of FT-NIR spectra of samples from different suitable habitats showed a trend of highly suitable areas > moderate > low. Then, a two-dimensional correlation spectroscopy (2DCOS) images based on FT-NIR spectroscopy combined with a residual convolutional neural network (ResNet) was proposed for recognizing the geographic origin of L. tsao-ko . The training and test sets of synchronous 2DCOS images in the full band had 100 % accuracy, and all samples were correctly recognized in the external validation set. The results showed that the geographical origin of L. tsao-ko could be accurately identified based on full -band synchronous 2DCOS images, but attention should also be paid to the spectral information carried by a single spectral region (10000 -7500 cm(-1) , 7500 -5415 cm(-1) and 5415 -4000 cm (- 1) ).The results of the study provide a reference for the introduction and cultivation of L. tsao-ko .
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