重庆市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重庆市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重庆市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。 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。

A fully automatic mini weather station is deployed to conduct real-time monitoring of air temperature, humidity and wind speed across various farmlands in Chongqing, with real-time data uploaded daily. The reference crop evapotranspiration (ET0) is calculated via analysis, providing data support for farmland water surplus and deficit analysis, guiding scientific farmland irrigation and drainage, and thus improving crop yield and quality.

1. Real-time monitoring and daily data upload: Fully automatic mini weather stations perform real-time monitoring of air temperature, humidity and wind speed at various farmlands in Chongqing every half hour per day, and upload the real-time data on a daily basis.

2. Data processing: Collected raw data is subjected to deduplication, merging, regional classification and statistical processing. 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. The reference crop evapotranspiration ET0 is then computed using the following formula based on these parameters:
$$ET0 = frac{0.408 imes ext{Daily Net Solar Radiation} imes ext{Atmospheric Pressure Slope}}{ ext{Atmospheric Pressure Slope} + ext{Air Humidity Constant} imes (1 + 0.34 imes ext{Wind Speed})} + frac{900 imes ext{Wind Speed}}{ ext{Temperature} + 273.15} imes ( ext{Saturated Vapor Pressure} - ext{Ambient Humidity}) imes frac{ ext{Air Humidity Constant}}{ ext{Atmospheric Pressure Slope} + ext{Air Humidity Constant} imes (1 + 0.34 imes ext{Wind Speed})}$$

3. Data application: Long-term tracking and analysis of ET0 data enable evapotranspiration monitoring of farmlands in the target region, providing data support for irrigation and drainage, thereby enhancing crop yield and quality.