数字农科院2.0

Predicting the geospatial distribution of Chinese rice nutrient element in regional scale for the geographical origin-A case study on the traceability of Japonica rice

文献类型： 外文期刊

作者： Sheng, Meiling;Li, Chunlin;Zhang, Weixing;Nie, Jing;Hu, Hao;Lou, Weidong;Deng, Xunfei;Shao, Shengzhi;Lyu, Xiaonan;Ren, Zhouqiao;Rogers, Karyne M.;Wadood, Syed Abdul;Zhang, Yongzhi;Yuan, Yuwei

作者机构：

关键词： environmental similarity;geographical origin;nutrient element;predictive model;regional scale;rice;spatial distributions

期刊名称： FOOD FRONTIERS

ISSN：

年卷期： 2024 年

页码：

收录情况： EI（2024版）

摘要： Effective geographical origin discrimination of Chinese rice requires a large database of samples to ensure sufficient data for origin verification at a regional scale. In this study, environmental similarity was used to establish a spatial database of rice nutrient element, and then the validity of the database was verified using the back propagation artificial neural networks modeling (BPNN). The spatial distribution model of 14 rice nutrient element (Al, Ba, Ca, Cu, Cr, Fe, K, Mg, Mn, Mo, Na, Ni, Rb, and Zn) on regional scale was built using an environmental similarity method for the first time. Elemental concentrations of 692 samples were used to build a simulated geographical origin prediction model for northeastern (N-E), middle to lower Yangtze River plain (Y-R), southwestern (S-W), and southeastern (S-E) in China. The results indicated that the performance of the environmental similarity model for these four growing regions was S-W > N-E > S-E > Y-R based on the lowest ranking root mean square error (RMSE) for each region. For example, the RMSEs of Zn in S-W, N-E, S-E, and Y-R regions were 2.0, 2.4, 2.7, and 3.7 mg/kg, respectively. A case study on the traceability of Japonica rice was shown that Japonica rice could be discriminated with higher origin accuracy using a simulated database (91.8%) than by the actual database (87.0%) using the BPNN model. This indicates that a simulated rice element database could improve the accuracy of geographical origin discrimination for Chinese rice and potentially be applied to other large national-scale crop datasets.

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