In: Journal of Hydrology and Hydromechanics, vol. 61, no. 4
Viliam Nagy - Gábor Milics - Norbert Smuk - Attila Kovács - István Balla - Márton Jolánkai - József Deákvári - Kornél Szalay - László Fenyvesi - Vlasta Štekauerová - Zoltán Wilhelm - Kálmán Rajkai - Tamás Németh - Miklós Neményi
Detaily:
Rok, strany: 2013, 305 - 312
Kľúčové slová:
Moisture content mapping; Apparent electrical conductivity; Data preparation and interpolation; Precision agriculture.
URL originálneho zdroja: http://www.ih.savba.sk/jhh
O článku:
A soil moisture content map is important for providing information about the distribution of moisture in a given area. Moisture content directly influences agricultural yield thus it is crucial to have accurate and reliable information about moisture distribution and content in the field. Since soil is a porous medium modified generalized Archie’s equation provides the basic formula to calculate moisture content data based on measured ECa. In this study we aimed to find a more accurate and cost effective method for measuring moisture content than manual field sampling. Locations of 25 sampling points were chosen from our research field as a reference. We assumed that soil moisture content could be calculated by measuring apparent electrical conductivity (ECa) using the Veris-3100 on-the-go soil mapping tool. Statistical analysis was carried out on the 10.791 ECa raw data in order to filter the outliers. The applied statistical method was ±1.5
interquartile (IRQ) distance approach. The visualization of soil moisture distribution within the experimental field was carried out by means of ArcGIS/ArcMAP using the inverse distance weighting interpolation method. In the investigated 25 sampling points, coefficient of determination between calculated volumetric moisture content data and measured ECa was R2 = 0.87. According to our results, volumetric moisture content can be mapped by applying ECa measurements in
these particular soil types.
Ako citovať:
ISO 690:
Nagy, V., Milics, G., Smuk, N., Kovács, A., Balla, I., Jolánkai, M., Deákvári, J., Szalay, K., Fenyvesi, L., Štekauerová, V., Wilhelm, Z., Rajkai, K., Németh, T., Neményi, M. 2013. Continuous field soil moisture content mapping by means of apparent electrical conductivity (ECa) measurement. In Journal of Hydrology and Hydromechanics, vol. 61, no.4, pp. 305-312. 0042-790X (until 2019) .
APA:
Nagy, V., Milics, G., Smuk, N., Kovács, A., Balla, I., Jolánkai, M., Deákvári, J., Szalay, K., Fenyvesi, L., Štekauerová, V., Wilhelm, Z., Rajkai, K., Németh, T., Neményi, M. (2013). Continuous field soil moisture content mapping by means of apparent electrical conductivity (ECa) measurement. Journal of Hydrology and Hydromechanics, 61(4), 305-312. 0042-790X (until 2019) .