黑龙江省各个农田参考作物腾发量分析数据

通过全自动小型气象站对黑龙江省各个农田实时监测空气中的温度、湿度和风速,并每日上传即时数据，分析计算参考作物腾发量ET0，为农田水分盈亏分析提供数据支撑，指导农田科学灌溉和排水，从而提高作物的产量和质量。1.每天每半小时通过全自动小型气象站对黑龙江省各个农田实时监测空气中的温度、湿度和风速等并每日上传即时数据。 2、数据处理 对采集到的数据进行去重、合并，按照区域分类、统计处理，计算出每日农业的太阳净辐射量（W/m²）、温度（℃）、风速（m/s）、饱和蒸汽压（Pa）、环境湿度（%rh）、大气压值斜率、空气湿度，基于这些参数利用以下公式计算参考作物腾发量ET0： ET0=0.408*每日太阳净辐射量*大气压值斜率/（大气压值斜率+（空气湿度常数*（1+0.34*风速）））+900*风速/（温度+273.15）*（饱和蒸汽压-环境湿度）*空气湿度常数/（大气压值斜率+（空气湿度常数*(1+0.34*风速）））。 3、数据应用：通过长期ET0数据跟踪与分析，实现对该区域农田的蒸发蒸腾监测，为灌溉和排水提供数据支撑，从而提高作物的产量和质量。This dataset is developed based on real-time monitoring of air temperature, humidity and wind speed across farmlands in Heilongjiang Province using fully automatic mini weather stations. Real-time monitoring data is uploaded daily, and reference crop evapotranspiration (ET0) is analyzed and computed to provide data support for farmland water surplus and deficit analysis, guide scientific farmland irrigation and drainage, and thus improve crop yield and quality. 1. Real-time monitoring and daily data upload: Fully automatic mini weather stations conduct real-time monitoring of air temperature, humidity, wind speed and other relevant parameters in various farmlands of Heilongjiang Province every half hour per day, and upload the real-time data daily. 2. Data processing: The collected data is deduplicated and merged, then classified by region and statistically processed. The following parameters are calculated daily: agricultural net solar radiation (W/m²), air temperature (℃), wind speed (m/s), saturated vapor pressure (Pa), ambient humidity (%rh), atmospheric pressure slope, and air humidity. Reference crop evapotranspiration ET0 is then calculated using these parameters with the following formula: ET0 = 0.408 * Daily Net Solar Radiation * Atmospheric Pressure Slope / (Atmospheric Pressure Slope + (Air Humidity Constant * (1 + 0.34 * Wind Speed))) + 900 * Wind Speed / (Temperature + 273.15) * (Saturated Vapor Pressure - Ambient Humidity) * Air Humidity Constant / (Atmospheric Pressure Slope + (Air Humidity Constant * (1 + 0.34 * Wind Speed))) 3. Data application: Through long-term tracking and analysis of ET0 data, evapotranspiration monitoring of farmlands in this region is realized, providing data support for irrigation and drainage, thereby improving crop yield and quality.