浙江省嘉兴市水稻作物实际蒸散发值分析数据

该数据主要通过采集浙江托普云农智慧农业气象站设备，分析水稻的作物实际蒸散发ETC值，通过对ETC数据分析得到水稻实际蒸发蒸腾情况，为灌溉和排水提供数据支撑，从而提高水稻的产量和质量。
1、数据来源：通过浙江智慧农业气象站设备采集空气温度、湿度和风速数据,以一定采集周期上传即时数据。 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，计算出每日太阳净辐射量（W/m²）、平均温度（℃）、平均风速（m/s）、平均饱和蒸汽压（Pa）、环境湿度（%rh）、大气压值斜率、空气湿度常数，结合水稻作物系数KC值，计算作物实际蒸散发值ETC： ETC=（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*平均风速）））+900*平均风速/（平均温度+273.15）*（平均饱和蒸汽压-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*平均风速））））*KC。 3、数据应用：通过长期ETC数据跟踪与分析，实现对该区域水稻的蒸发蒸腾定量监测，为灌溉和排水提供数据支撑，从而提高水稻的产量和质量。

This dataset is constructed by collecting data via Zhejiang Top Cloud Agriculture Smart Agricultural Weather Station equipment, analyzes the actual crop evapotranspiration (ETC) values of rice, and derives the actual evapotranspiration status of rice through ETC data analysis, providing data support for irrigation and drainage to improve rice yield and quality.

1、Data Source: Air temperature, humidity and wind speed data are collected by the aforementioned smart agricultural weather stations, with real-time data uploaded at a fixed collection interval.

2、Data Processing: The collected data is deduplicated, merged, classified by region and statistically processed. The daily solar net radiation (W/m²), average temperature (℃), average wind speed (m/s), average saturated vapor pressure (Pa), ambient humidity (%rh), atmospheric pressure slope and air humidity constant are calculated. Combined with the rice crop coefficient KC value, the actual crop evapotranspiration value ETC is computed using the following formula:

ETC = [0.408 * (daily solar net radiation) * (atmospheric pressure slope) / (atmospheric pressure slope + air humidity constant * (1 + 0.34 * average wind speed)) + 900 * average wind speed / (average temperature + 273.15) * (average saturated vapor pressure - ambient humidity) * air humidity constant / (atmospheric pressure slope + air humidity constant * (1 + 0.34 * average wind speed))] * KC

3、Data Application: Through long-term tracking and analysis of ETC data, quantitative monitoring of rice evapotranspiration in the target region can be achieved, providing data support for irrigation and drainage, thereby enhancing rice yield and quality.

搜集汇总

数据集介绍

特点

该数据集包含浙江省嘉兴市水稻作物的实际蒸散发值（ETC）分析数据，通过智慧农业气象站采集环境参数并计算得出，用于水稻灌溉和排水管理，以提高产量和质量。数据集规模为745条，更新频次为按需更新。