Izvorni znanstveni članak
https://doi.org/10.33128/ag.84.3.1
The suitability of agricultural land for irrigation and the water deficit in the soil in the cultivation of important agricultural crops in the Međimurje County area
Stjepan Husnjak
; Agronomski fakultet Sveučilišta u Zagrebu, Zagreb, Hrvatska
Ivan Šimunić
; Agronomski fakultet Sveučilišta u Zagrebu, Zagreb, Hrvatska
Vladimir Kušan
orcid.org/0009-0006-1303-2951
; OIKON d.o.o. – Institut za primjenjenu ekologiju, Zagreb, Hrvatska
Danijela Jungić
orcid.org/0000-0002-1121-4827
; Agronomski fakultet Sveučilišta u Zagrebu, Zagreb, Hrvatska
Ivan Magdić
; Agronomski fakultet Sveučilišta u Zagrebu, Zagreb, Hrvatska
Sažetak
The aim of the paper is to point out the insufficiently used agroecological potentials in the development of agriculture in the Međimurje County under the current climate change conditions. The resources of agricultural land were determined on the basis of the existing map of agricultural land of the Republic of Croatia in scale 1:50,000. The suitability of agricultural land for irrigation is shown on the basis of the „Dedicated Pedological Map of Međimurje County in scale 1:50,000“. The basic climate properties and the water deficit in the soil were shown for corn, cabbage, potatoes and apples, and were determined for the first period 1981-1999 and for the second period 2000-2021, separately. At the same time, the reference evapotranspiration was determined according to the Penman-Monteith method and the balance of precipitation water in the soil according to the Palmer method using the Hidrokalk program. The soil water deficit was determined from the difference between potential evapotranspiration of crops and actual evapotranspiration. Of the total 48,882.0 ha of agricultural land in Međimurje County, about 82% was used and about 18% was unused. 89.2% of the used land is privately owned, 4.8% is state-owned, and 6% is mixed owned. Unused agricultural land is privately 86,4%, state 11.9%, and mixed owned 1,7%. On the used agricultural land, the most represented soil is P-2 class suitable for irrigation (72.5%), followed by N-1 class (18.4%), P-3 class (9.0%) and P-1 class (0.1%). Unused land is dominated by P-2 class soils (50.8%), followed by N-1 class (35.3%) and P-3 class (13.9%). The long - term average annual precipitation in the second climate period was 56.6 mm lower, and the air temperature was 0.9 ºC higher compared to the first climate period. In the vegetation period (IV-IX months) of the second climatic period, the average amount of precipitation was also lower by 24.5 mm and the air temperature was higher by 0.9 ºC compared to the first climatic period. In dry years, with a 75% probability of precipitation, the long-term average annual precipitation in the second climate period was 108.7 mm lower and the air temperature was 0.9 ºC higher compared to the first climate period. In the vegetation period, the average amount of precipitation in the second climatic period was lower by 74 mm, while the air temperature was higher by 0.6 ºC compared to the first climatic period. In the second climatic period during the crop vegetation, a greater soil water deficit was found compared to the first period. In average years, the highest difference in soil water deficit between the two periods was found in apple (48.7 mm) and the lowest in cabbage (38.5 mm). In dry years, the highest difference in water deficit between the two periods was also found in apple (129 mm), while the same difference was found in other crops (about 116 mm). In order to compensate for the soil water deficit, it is necessary to plan the application of irrigation process in the Međimurje County area.
Ključne riječi
Agricultural land; ownership; suitability; irrigation; Međimurje County
Hrčak ID:
293362
URI
Datum izdavanja:
7.2.2023.
Posjeta: 452 *