Simulation of chloride transport from irrigation water by infiltration into soil profile

Rok, strany: 2018, 150 - 156

The presence or accumulation of excessive amounts of dissolved salts in the soil root zone and their negative impact on crops productivity is a general problem especially in arid and semi-arid regions. Dissolved substances in irrigation water in different ways affect the soil properties (physical, chemical, microbiological), the growth and development of plants. The degree of their influence depends on their concentration, on the method of irrigation, amount of irrigation water and on the irrigated land. Some of ions in irrigation water or in fertilizers in excessive quantities may be very toxic for plants. This applies especially to sodium, chloride and boron. The aim of this article was by means of numerical model HYDRUS 1D to analyse the one-dimensional transport and accumulation of chloride ions into characteristic alluvium quaternary sediment profiles of Danube Lowlands, by infiltration of highly mineralized irrigation water. A dry year from the meteorology and hydrology point of view was chosen for simulation. The concentration profiles of chloride ions in two soil profiles, and the courses of chloride concentration in root zone in the soil profiles after application of three doses of highly mineralized irrigation water were obtained. The maximum values of Cl- concentration in the root zone in both soil profiles reached relatively high values during the vegetation period (0.438 mg cm-3 or 0.615 mg cm-3 of Cl- ions), which are inappropriate conditions for growing crops more sensitive to chloride content.

ISO 690:

Čelková, A. 2018. Simulation of chloride transport from irrigation water by infiltration into soil profile. In Acta Hydrologica Slovaca, vol. 19, no.1, pp. 150-156. 2644-4690.

APA:

Čelková, A. (2018). Simulation of chloride transport from irrigation water by infiltration into soil profile. Acta Hydrologica Slovaca, 19(1), 150-156. 2644-4690.