摘要
为选择好适宜的播期,采用1981—2013年每年3—5月辽宁省49个自动气象站的常规气象要素的日值数据、2004—2013年每年3—5月辽宁省人工站土壤水分数据,通过多元回归分析建立了辽宁省49个县的地温和土壤相对湿度模型,同时通过地温、土壤相对湿度、积温的判断标准,形成了辽宁省适播期预报系统,初步实现辽宁大田作物适播期预报的业务化应用。
In order to choose the suitable sowing date,using daily value data of conventional meteorological elements of 49 automatic weather stations in Liaoning Province from March to May every year in 1981—2013 and soil moisture data of manual observation stations in Liaoning Province from March to May every year in 2004—2013,the models of geotemperature and soil relative humidity in 49 counties of Liaoning Province were set up by multiple regression analysis. At the same time,the forecasting system of suitable sowing date of Liaoning Province was formed by the judgment criteria of geotemperature,soil relative humidity and accumulated temperature,and the business application of suitable sowing date forecast for field crops was initially realized.
出处
《农业灾害研究》
2017年第9期36-37,44,共3页
Journal of Agricultural Catastrophology
基金
国家自然科学基金项目(41605087)
辽宁省农业领域青年科技创新人才培养计划项目(2015030)
省气象局博士科研专项(201503)
中国气象局沈阳大气环境研究所开放基金课题(2017SYIAE05)
辽宁省气象科学研究所特色领域研究基金项目(TSJJ201405)
关键词
大田作物
适播期
预报方法
Field crops
Suitable sowing date
Forecasting method
