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MOSES test campaign was performed between Börnchen and Dittersdorf from the 20.05.2019 to the 23.07.2019

Between Börnchen and Dittersdorf a MOSES test campaign was performed from the 20.05.2019 to the 23.07.2019

Minirhizotron(MR)-facilitities are used to investigate the processes in the soil-plant continuum. The unique setup of these facilities enables the recording of 4D information for multiple crop growing seasons under different field conditions and agricultural practices. The MR-facilities in Selhausen, Germany enable the performance of long-term studies of the soil-plant-continuum. The data set was acquired for the years 2016, 2017, 2018, 2020 and 2021 and the study is still on-going. The data set will be complemented each year. This repository contains relevant in-situ root system architectural traits like total root length, branch points, branching frequency, diameter (average, maximum, median), network area, perimeter, amount of root tips, volume and surface area. The sensors used to acquire root traits are cameras, taking images through horizontal transparent rhizotubes installed in several depths. The data in this repository correspond to the article "Investigating processes within the soil-plant continuum: Sub-soil data of minirhizotron facilities in Selhausen". Root data, corresponding to "Investigating processes within the soil-plant continuum: Sub-soil data of minirhizotron facilities in Selhausen".

Manual measurements taken by Stevens Hydra Probes II, which instantly calculates soil moisture, conductivity, salinity, and temperature as well as supplying the raw voltages and complex permittivity for research applications

Between Börnchen and Dittersdorf a MOSES test campaign was performed from the 20.05.2019 to the 23.07.2019

Between Börnchen and Dittersdorf a MOSES test campaign was performed from the 20.05.2019 to the 23.07.2019

Kurzanleitung zum Upload cvon MOSES-Daten der Testkampagne 3.7.2018-13.7.2018

Cosmic ray neutron sensors (CRNS) allow to determine field-scale soil moisture content non-invasively due to the dependence of aboveground measured epithermal neutrons on the amount of hydrogen. Because other pools besides soil contain hydrogen (e.g. biomass), it is necessary to consider these for accurate soil moisture content measurements, especially when they are changing dynamically (e.g., arable crops, de- and reforestation). In this study, we compare four approaches for the correction of biomass effects on soil moisture content measurements with CRNS using experiments with three crops (sugar beet, winter wheat and maize) on similar soils: I) site-specific functions based on in-situ measured biomass, II) a generic approach, III) the thermal-to-epithermal neutron ratio (Nr) and IV) the thermal neutron intensity. Calibration of the CRNS during bare soil conditions resulted in root mean square errors (RMSE) of 0.097, 0.041 and 0.019 m3/m3 between estimated and reference soil moisture content of the cropped soils, respectively. Considering in-situ measured biomass for correction reduced the RMSE to 0.015, 0.018 and 0.009 m3/m3. When thermal neutron intensity was considered for correction, similarly accurate results were obtained. Corrections based on Nr and the generic approach were less accurate. We also explored the use of CRNS for biomass estimation. The use of Nr only provided accurate biomass estimates for sugar beet. However, significant site-specific relationships between biomass and thermal neutron intensity were obtained for all three crops. It was concluded that thermal neutron intensity can be used to correct soil moisture content estimates from CRNS and to estimate biomass.

Between Börnchen and Dittersdorf a MOSES test campaign was performed from the 20.05.2019 to the 23.07.2019 The aim was to measure atmospheric conditions before and after extreme hydrological events.