淠史杭地区再生稻种植农业气象条件适宜性分析OA

Based on 56 consecutive years(1969-2024)of meteorological observations and field experimental data collected during 2022-2024 in the Pishihang irrigation district,this paper systematically evaluated the suitability of key agrometeorological factors for ratoon rice cultivation,including the mean air temperature in September,accumulated temperature above 10 °C,precipitation in August,annual precipitation,and sunshine duration in September,and further assessed the potential utilization of regional climatic resources.The results indicated the thermal resources in the Pishihang region met the most suitable standards for ratoon rice cultivation,sunshine conditions satisfy the requirements of the suitable zone,and water availability were at a marginally suitable level,necessitating enhanced water management during the critical August growth stage.This study provides a scientific basis for the optimization of ratoon rice cropping systems in the region and is of positive significance for enhancing regional grain productivity.