Weighing Lysimeter Data for The Bushland, Texas Maize for Grain Datasets

<p dir="ltr">This dataset consists of six years of weighing lysimeter data for six seasons of maize (<i>Zea mays</i>, L., also known as corn in the United States) grown for grain at the USDA-ARS Conservation and Production Laboratory (CPRL), Soil and Water Management Research Unit (SWMRU), Bushland, Texas (Lat. 35.186714°, Long. -102.094189°, elevation 1170 m above MSL) for 1989, 1990, 1994, 2013, 2016, and 2018. Maize was grown on four large, precision weighing lysimeters, each in the center of a 4.44 ha square field. The weighing lysimeters were used to measure mass, which was converted to relative soil water storage with 0.05 mm accuracy at 5-minute intervals, and the 5-minute change in soil water storage was used along with precipitation and irrigation amounts to calculate crop evapotranspiration (ET), which is reported at 15-minute intervals. Although a quality control process was used, the ET data in this dataset are considered raw data. Advanced algorithms for detection of precipitation, dew and frost were applied in a separate process to determine ET values that are reported in files in a dataset entitled "Evapotranspiration and Water Balance Data for The Bushland, Texas Maize for Grain Datasets". Those files have "water-balance" in their names. Each lysimeter was equipped with a suite of instruments to sense wind speed, air temperature and relative humidity, components of the radiation balance (e.g., net radiation, incoming and reflected shortwave, photosynthetically active radiation (PAR), incoming and reflected longwave, thermal infrared emitted by the plant/soil surface), soil heat flux, soil temperature, and soil volumetric water content at certain depths. Not all properties were always sensed in any one year; and instruments used changed from season to season, which are reasons that subsidiary datasets and data dictionaries for each season are required.<br>These datasets originate from research aimed at determining crop water use (ET), crop coefficients for use in ET-based irrigation scheduling based on a reference ET, crop growth, yield, harvest index, and crop water productivity as affected by irrigation method, timing, amount (full or some degree of deficit), agronomic practices, cultivar, and weather. Prior publications have focused on maize ET, crop coefficients, and crop water productivity. Crop coefficients have been used by ET networks. The data have utility for testing simulation models of crop ET, growth, and yield and have been used by the Agricultural Model Intercomparison and Improvement Project (AgMIP), by OPENET, and by many others for testing, and calibrating models of ET that use satellite and/or weather data.</p><p dir="ltr">Resources in this dataset:</p><ul><li>Resource Title: 1989 Bushland, TX, East Maize Weighing Lysimeter and Microclimate Data. File Name: 1989_East_Maize_Lys_ClimDat.xlsx. Resource Description: This dataset consists of weighing lysimeter data for maize grown for grain at the USDA-ARS Conservation and Production Laboratory (CPRL), Soil and Water Management Research Unit (SWMRU), Bushland, Texas (Lat. 35.186714°, Long. -102.094189°, elevation 1170 m above MSL). This particular dataset contains lysimeter soil water storage and drainage data, and data from in-soil and above-soil sensors. Properties sensed included wind speed, air temperature and relative humidity, components of the radiation balance (e.g., net radiation, incoming and reflected shortwave, photosynthetically active radiation (PAR), incoming and reflected longwave, thermal infrared emitted by the plant/soil surface), soil heat flux, soil temperature, and soil volumetric water content at certain depths. Not all properties where always sensed in any one year.</li><li>Resource Title: 1990 Bushland, TX, East Maize Weighing Lysimeter and Microclimate Data. File Name: 1990_East_Maize_Lys_ClimDat.xlsx. Resource Description: As above for 1990, East fields.</li><li>Resource Title: 1994 Bushland, TX, East Maize Weighing Lysimeter and Microclimate Data. File Name: 1994_East_Maize_Lys_ClimDat.xlsx. Resource Description: As above for 1994, East fields.</li><li>Resource Title: 1994 Bushland, TX, West Maize Weighing Lysimeter and Microclimate Data. File Name: 1994_West_Maize_Lys_ClimDat.xlsx. Resource Description: As above for 1994, West fields.</li><li>Resource Title: 2013 Bushland, TX, East Maize Weighing Lysimeter and Microclimate Data. File Name: 2013_East_Maize_Lys_ClimDat.xlsx. Resource Description: As above for 2013 East fields.</li><li>Resource Title: 2013 Bushland, TX, West Maize Weighing Lysimeter and Microclimate Data. File Name: 2013_West_Maize_Lys_ClimDat.xlsx. Resource Description: As above for 2013 West fields.</li><li>Resource Title: 2016 Bushland, TX, East Maize Weighing Lysimeter and Microclimate Data. File Name: 2016_East_Maize_Lys_ClimDat.xlsx. Resource Description: As above for 2016 East fields.</li><li>Resource Title: 2016 Bushland, TX, West Maize Weighing Lysimeter and Microclimate Data. File Name: 2016_West_Maize_Lys_ClimDat.xlsx. Resource Description: As above for 2016 West fields.</li><li>Resource Title: 2018 Bushland, TX, East Maize Weighing Lysimeter and Microclimate Data. File Name: 2018_East_Maize_Lys_ClimDat.xlsx. Resource Description: As above for 2018 East fields.</li><li>Resource Title: 2018 Bushland, TX, West Maize Weighing Lysimeter and Microclimate Data. File Name: 2018_West_Maize_Lys_ClimDat.xlsx. Resource Description: As above for 2018 West fields.</li></ul><p></p>

Tags: ars, atmospheric-surface-surface-radiation-budget-including-solar-irradiance, data-gov, deficit-irrigation, evapotranspiration, irrigation, maize, microclimate, np211, soil-heat-flux, soil-temperature, soil-water-content
Organization: Department of Agriculture