This study introduced the effects of high-temperature damage on rice and reviewed the damage mechanism, heat damage index and risk assessment, forewarning and monitoring. On the basis of extensive studies, this paper ...This study introduced the effects of high-temperature damage on rice and reviewed the damage mechanism, heat damage index and risk assessment, forewarning and monitoring. On the basis of extensive studies, this paper put forward the viewpoints of ascertaining the fundamental mechanism of high temperature damage to rice at the molecular level, establishing a comprehensive heat damage index taking variety, growth stage and other meteorological factors into consideration, selecting appropriate sowing time, choosing heat-resistant varieties and improving the prevention system. All of these are aimed at providing a solid foundation for coping avoiding the harms from heat damage and improving the coping method.展开更多
Aiming at the selection of fuzzy AHP and fuzzy DH methods in the previous studies, this paper evaluate the qualitative index system using expert questionnaire, the self-learning BP neural network model to construct th...Aiming at the selection of fuzzy AHP and fuzzy DH methods in the previous studies, this paper evaluate the qualitative index system using expert questionnaire, the self-learning BP neural network model to construct the index of system, and complete the establishment of model, in order to avoid the serious subjectivity, and using statistical and measurement methods test the reliability index, analyze the validity of the evaluation index system and completeness. Finally, the paper validate the practicability of the model.展开更多
基金Supported by Special Fund of Scientific Research(Meteorology)in Public Interest(GYHY201506018)~~
文摘This study introduced the effects of high-temperature damage on rice and reviewed the damage mechanism, heat damage index and risk assessment, forewarning and monitoring. On the basis of extensive studies, this paper put forward the viewpoints of ascertaining the fundamental mechanism of high temperature damage to rice at the molecular level, establishing a comprehensive heat damage index taking variety, growth stage and other meteorological factors into consideration, selecting appropriate sowing time, choosing heat-resistant varieties and improving the prevention system. All of these are aimed at providing a solid foundation for coping avoiding the harms from heat damage and improving the coping method.
文摘Aiming at the selection of fuzzy AHP and fuzzy DH methods in the previous studies, this paper evaluate the qualitative index system using expert questionnaire, the self-learning BP neural network model to construct the index of system, and complete the establishment of model, in order to avoid the serious subjectivity, and using statistical and measurement methods test the reliability index, analyze the validity of the evaluation index system and completeness. Finally, the paper validate the practicability of the model.
