Rice Yield Estimation Based on Continuous Wavelet Transform With Multiple Growth Periods

Yield is an important indicator in evaluating rice planting, and it is the collective result of various factors over multiple growth stages. To achieve a large-scale accurate prediction of rice yield, based on yield estimation models using a single growth stage and conventional spectral transformati...

Full description

Bibliographic Details
Main Authors: Chen Gu, Shu Ji, Xiaobo Xi, Zhenghua Zhang, Qingqing Hong, Zhongyang Huo, Wenxi Li, Wei Mao, Haitao Zhao, Ruihong Zhang, Bin Li, Changwei Tan
Format: Article
Language:English
Published: Frontiers Media S.A. 2022-07-01
Series:Frontiers in Plant Science
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fpls.2022.931789/full
_version_ 1811227178988208128
author Chen Gu
Shu Ji
Xiaobo Xi
Zhenghua Zhang
Qingqing Hong
Zhongyang Huo
Wenxi Li
Wei Mao
Haitao Zhao
Ruihong Zhang
Bin Li
Changwei Tan
author_facet Chen Gu
Shu Ji
Xiaobo Xi
Zhenghua Zhang
Qingqing Hong
Zhongyang Huo
Wenxi Li
Wei Mao
Haitao Zhao
Ruihong Zhang
Bin Li
Changwei Tan
author_sort Chen Gu
collection DOAJ
description Yield is an important indicator in evaluating rice planting, and it is the collective result of various factors over multiple growth stages. To achieve a large-scale accurate prediction of rice yield, based on yield estimation models using a single growth stage and conventional spectral transformation methods, this study introduced the continuous wavelet transform algorithm and constructed models under the premise of combined multiple growth stages. In this study, canopy reflectance spectra at four important stages of rice elongation, heading, flowering and milky were selected, and then, a rice yield estimation model was constructed by combining vegetation index, first derivative and wavelet transform based on random forest algorithm or multiple stepwise regression. This study found that the combination of multiple growth stages significantly improved the model accuracy. In addition, after two validations, the optimal model combination for rice yield estimation is first derivative-wavelet transform-vegetation index-random forest model based on four growth stages, with the coefficient of determination (R2) of 0.86, the root mean square error (RMSE) of 35.50 g·m−2 and the mean absolute percentage error (MAPE) of 4.6% for the training set, R2 of 0.85, RMSE of 33.40 g.m−2 and MAPE 4.30% for the validation set 1, and R2 of 0.80, RMSE of 37.40 g·m−2 and MAPE of 4.60% for the validation set 2. The research results demonstrated that the established model could accurately predict rice yield, providing technical support and a foundation for large-scale statistical estimating of rice yield.
first_indexed 2024-04-12T09:37:11Z
format Article
id doaj.art-c270075cf42940ebbce02addcc47702a
institution Directory Open Access Journal
issn 1664-462X
language English
last_indexed 2024-04-12T09:37:11Z
publishDate 2022-07-01
publisher Frontiers Media S.A.
record_format Article
series Frontiers in Plant Science
spelling doaj.art-c270075cf42940ebbce02addcc47702a2022-12-22T03:38:12ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2022-07-011310.3389/fpls.2022.931789931789Rice Yield Estimation Based on Continuous Wavelet Transform With Multiple Growth PeriodsChen Gu0Shu Ji1Xiaobo Xi2Zhenghua Zhang3Qingqing Hong4Zhongyang Huo5Wenxi Li6Wei Mao7Haitao Zhao8Ruihong Zhang9Bin Li10Changwei Tan11Jiangsu Key Laboratory of Crop Genetics and Physiology, Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education of China, Key Laboratory of Cultivated Land Quality Monitoring and Evaluation (Jiangsu) Ministry of Agriculture and Rural Affairs, Jiangsu Engineering Centre for Modern Agricultural Machinery and Agronomy Technology, Jiangsu Province Engineering Research Center of Knowledge Management and Intelligent Service, Yangzhou University, Yangzhou, ChinaJiangsu Key Laboratory of Crop Genetics and Physiology, Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education of China, Key Laboratory of Cultivated Land Quality Monitoring and Evaluation (Jiangsu) Ministry of Agriculture and Rural Affairs, Jiangsu Engineering Centre for Modern Agricultural Machinery and Agronomy Technology, Jiangsu Province Engineering Research Center of Knowledge Management and Intelligent Service, Yangzhou University, Yangzhou, ChinaJiangsu Key Laboratory of Crop Genetics and Physiology, Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education of China, Key Laboratory of Cultivated Land Quality Monitoring and Evaluation (Jiangsu) Ministry of Agriculture and Rural Affairs, Jiangsu Engineering Centre for Modern Agricultural Machinery and Agronomy Technology, Jiangsu Province Engineering Research Center of Knowledge Management and Intelligent Service, Yangzhou University, Yangzhou, ChinaJiangsu Key Laboratory of Crop Genetics and Physiology, Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education of China, Key Laboratory of Cultivated Land Quality Monitoring and Evaluation (Jiangsu) Ministry of Agriculture and Rural Affairs, Jiangsu Engineering Centre for Modern Agricultural Machinery and Agronomy Technology, Jiangsu Province Engineering Research Center of Knowledge Management and Intelligent Service, Yangzhou University, Yangzhou, ChinaJiangsu Key Laboratory of Crop Genetics and Physiology, Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education of China, Key Laboratory of Cultivated Land Quality Monitoring and Evaluation (Jiangsu) Ministry of Agriculture and Rural Affairs, Jiangsu Engineering Centre for Modern Agricultural Machinery and Agronomy Technology, Jiangsu Province Engineering Research Center of Knowledge Management and Intelligent Service, Yangzhou University, Yangzhou, ChinaJiangsu Key Laboratory of Crop Genetics and Physiology, Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education of China, Key Laboratory of Cultivated Land Quality Monitoring and Evaluation (Jiangsu) Ministry of Agriculture and Rural Affairs, Jiangsu Engineering Centre for Modern Agricultural Machinery and Agronomy Technology, Jiangsu Province Engineering Research Center of Knowledge Management and Intelligent Service, Yangzhou University, Yangzhou, ChinaStation of Land Protection of Yangzhou City, Yangzhou, ChinaStation of Land Protection of Yangzhou City, Yangzhou, ChinaJiangsu Key Laboratory of Crop Genetics and Physiology, Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education of China, Key Laboratory of Cultivated Land Quality Monitoring and Evaluation (Jiangsu) Ministry of Agriculture and Rural Affairs, Jiangsu Engineering Centre for Modern Agricultural Machinery and Agronomy Technology, Jiangsu Province Engineering Research Center of Knowledge Management and Intelligent Service, Yangzhou University, Yangzhou, ChinaJiangsu Key Laboratory of Crop Genetics and Physiology, Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education of China, Key Laboratory of Cultivated Land Quality Monitoring and Evaluation (Jiangsu) Ministry of Agriculture and Rural Affairs, Jiangsu Engineering Centre for Modern Agricultural Machinery and Agronomy Technology, Jiangsu Province Engineering Research Center of Knowledge Management and Intelligent Service, Yangzhou University, Yangzhou, ChinaJiangsu Key Laboratory of Crop Genetics and Physiology, Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education of China, Key Laboratory of Cultivated Land Quality Monitoring and Evaluation (Jiangsu) Ministry of Agriculture and Rural Affairs, Jiangsu Engineering Centre for Modern Agricultural Machinery and Agronomy Technology, Jiangsu Province Engineering Research Center of Knowledge Management and Intelligent Service, Yangzhou University, Yangzhou, ChinaJiangsu Key Laboratory of Crop Genetics and Physiology, Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education of China, Key Laboratory of Cultivated Land Quality Monitoring and Evaluation (Jiangsu) Ministry of Agriculture and Rural Affairs, Jiangsu Engineering Centre for Modern Agricultural Machinery and Agronomy Technology, Jiangsu Province Engineering Research Center of Knowledge Management and Intelligent Service, Yangzhou University, Yangzhou, ChinaYield is an important indicator in evaluating rice planting, and it is the collective result of various factors over multiple growth stages. To achieve a large-scale accurate prediction of rice yield, based on yield estimation models using a single growth stage and conventional spectral transformation methods, this study introduced the continuous wavelet transform algorithm and constructed models under the premise of combined multiple growth stages. In this study, canopy reflectance spectra at four important stages of rice elongation, heading, flowering and milky were selected, and then, a rice yield estimation model was constructed by combining vegetation index, first derivative and wavelet transform based on random forest algorithm or multiple stepwise regression. This study found that the combination of multiple growth stages significantly improved the model accuracy. In addition, after two validations, the optimal model combination for rice yield estimation is first derivative-wavelet transform-vegetation index-random forest model based on four growth stages, with the coefficient of determination (R2) of 0.86, the root mean square error (RMSE) of 35.50 g·m−2 and the mean absolute percentage error (MAPE) of 4.6% for the training set, R2 of 0.85, RMSE of 33.40 g.m−2 and MAPE 4.30% for the validation set 1, and R2 of 0.80, RMSE of 37.40 g·m−2 and MAPE of 4.60% for the validation set 2. The research results demonstrated that the established model could accurately predict rice yield, providing technical support and a foundation for large-scale statistical estimating of rice yield.https://www.frontiersin.org/articles/10.3389/fpls.2022.931789/fullremote sensinghyperspectralyieldwavelet transformmulti-growth stagerice
spellingShingle Chen Gu
Shu Ji
Xiaobo Xi
Zhenghua Zhang
Qingqing Hong
Zhongyang Huo
Wenxi Li
Wei Mao
Haitao Zhao
Ruihong Zhang
Bin Li
Changwei Tan
Rice Yield Estimation Based on Continuous Wavelet Transform With Multiple Growth Periods
Frontiers in Plant Science
remote sensing
hyperspectral
yield
wavelet transform
multi-growth stage
rice
title Rice Yield Estimation Based on Continuous Wavelet Transform With Multiple Growth Periods
title_full Rice Yield Estimation Based on Continuous Wavelet Transform With Multiple Growth Periods
title_fullStr Rice Yield Estimation Based on Continuous Wavelet Transform With Multiple Growth Periods
title_full_unstemmed Rice Yield Estimation Based on Continuous Wavelet Transform With Multiple Growth Periods
title_short Rice Yield Estimation Based on Continuous Wavelet Transform With Multiple Growth Periods
title_sort rice yield estimation based on continuous wavelet transform with multiple growth periods
topic remote sensing
hyperspectral
yield
wavelet transform
multi-growth stage
rice
url https://www.frontiersin.org/articles/10.3389/fpls.2022.931789/full
work_keys_str_mv AT chengu riceyieldestimationbasedoncontinuouswavelettransformwithmultiplegrowthperiods
AT shuji riceyieldestimationbasedoncontinuouswavelettransformwithmultiplegrowthperiods
AT xiaoboxi riceyieldestimationbasedoncontinuouswavelettransformwithmultiplegrowthperiods
AT zhenghuazhang riceyieldestimationbasedoncontinuouswavelettransformwithmultiplegrowthperiods
AT qingqinghong riceyieldestimationbasedoncontinuouswavelettransformwithmultiplegrowthperiods
AT zhongyanghuo riceyieldestimationbasedoncontinuouswavelettransformwithmultiplegrowthperiods
AT wenxili riceyieldestimationbasedoncontinuouswavelettransformwithmultiplegrowthperiods
AT weimao riceyieldestimationbasedoncontinuouswavelettransformwithmultiplegrowthperiods
AT haitaozhao riceyieldestimationbasedoncontinuouswavelettransformwithmultiplegrowthperiods
AT ruihongzhang riceyieldestimationbasedoncontinuouswavelettransformwithmultiplegrowthperiods
AT binli riceyieldestimationbasedoncontinuouswavelettransformwithmultiplegrowthperiods
AT changweitan riceyieldestimationbasedoncontinuouswavelettransformwithmultiplegrowthperiods