关键词: 秋收作物, 气象条件, 农业气象灾害

Abstract: The combination assessments of agrometeorological condition, growing suitability, agrometeorological disasters and their impacts on development and yield for autumn harvest crops were conducted by the usage of multiple methods including agrometeorological index, growing suitability model and agrometeorological disaster index, based on the meteorology observations in the year of 2023 and 1991−2020 from 2433 stations, as well as the development stage observations from agrometeorological stations. The results shown that there were suitable radiation and temperature condition, plenty precipitation, less occurrence and low intensity in agriculture drought, cold stress, heat stress and cold dew wind, benefiting better growing for autumn harvest crops during growing season in the year of 2023. However, some disadvantages were declared, such as severe waterlogging induced by heavy precipitation in Beijing-Tianjin-Hebei and Northeast China, extreme heat stress during summer in North China, Huanghuai and Xinjiang, periodical cold stress during spring in northern regions, local cold dew wind for double-season late rice in Hunan and Hubei, long drought duration during spring in southern Southeast China, as well as periodical drought during summer in some northern regions, that threaten development for autumn harvest crops.

Key words: Autumn harvest crops, Meteorological condition, Agrometeorological disaster