Study on Agro-meteorological Conditions for Film Mulching Planting in Autum

秋季覆膜种植的农业气象条件研究（英文）

The agro-meteorological conditions for film mulching planting in autumn in Xiji, Ningxia was studied by using the meteorological data from the national basic stations over the years, including the mulching planting of corn in autumn in differ- ent stages from 1985 to 1986, the mulching planting in different stages after the appearance of effective precipitation in October, and the wind simulation experimen- tal data of blower. Precipitation suitability analysis model before autumn film mulching and crop growth period was simulated to analyze the effective precipitation weather before mulching planting in autumn, and simulations were also made to temperature suitability analysis model during soil preparation and film mulching peri- ods in autumn, the suitability function of optimal sowing time about the soil moisture dynamic changes in autumn in different times, the best water conservation effect in film mulching period at different time after the appearance of effective precipitation, the wind resistance function of film mulching in autumn. All the simulation work was of high referential value to carry out meteorological service and agricultural weather forecast about film mulching in autumn.

应用国家基本站历年气象资料、1985~1986年地膜玉米秋季分期覆膜播种、10月份有效降水出现后分期覆膜播种、吹风机风力模拟实验资料等研究宁夏西吉秋覆膜种植的农业气象条件。模拟了秋季覆膜前与作物生育期降水适宜度分析模型,对秋季覆膜前有效降水天气形势进行了分析,模拟了秋季整地覆膜期温度适宜度模型、不同覆膜时间水分动态变化最佳播种期适宜度函数、出现有效降水后不同时间最佳覆膜期保水效益、秋覆膜的抗风性能函数,这些工作对开展秋覆膜气象服务及农用天气预报具有较高的参考价值。