Arable land, or fields along with meadows, make up about 92.54% of the total agricultural land or 46,491 ha, while pastures occupy 6.83% or 3.433 ha, and the reeds 0.63% or 314 ha. Large areas of agricultural and arable land (5.11% of agricultural land and 5.66% of arable land in the Republic of Srpska), long experience in agricultural production and a relatively good development trend in the post-war period contributed that the City of Gradiška is an area with developed agricultural production and potential for its further intensive development.
Forests and forest lands make up about 27.5% of the total land of the city of Gradiška, while the average annual wood mass increment is about 150,000 m3, while the average annual cut is about 100,000 m3. The primary (production of sawn wood) and final wood processing (furniture production) is developed in the area of the City.
Based on this natural resource, a wood processing industry with different levels of wood processing developed. Wood processing industry is the oldest industrial branch in the city of Gradiška. The first sawmill was built in 1855 in Gornji Podgradci.
The forest estate “Gradiška” manages a total of 15293.40 ha of forest area, and the remaining forest areas of 6643.23 ha are managed by private forest owners.
The catchment area of the city of Gradiška consists of the catchment area of the Sava River and its tributaries on the area of 657.7 km2 (86,31%) and the Vrbas River basin on the area of 104.3 km2 (13,69%). The larger river flows in the City are Jablanica (with tributaries Pisarić, Bajnovac, Bukovica, Ljutava, Vrbaška, Trnova, Lubina, Jurkovica, etc.) that take surface waters from Kozara and Prosara in the Sava River, while Osorna with Borna through the canal water in Vrbas and Lake Bardača.
According to the strategic document “Development and Construction of Irrigation Systems in the Municipality of of Gradiška and the Municipality of Laktaši”, the termination of use of underground water reserves of Lijevče polje is predicted as well as solving of the irrigation problem by the construction of special purpose reservoirs for irrigation on the river basins of Jurkovica, Lubina, Vrbaška, Jablanica and Turjanica. By building these special purpose accumulations, the total volume of accumulation of 45.913 million m3 would be provided and water for irrigation of up to 11.000 ha of irrigation area would be provided.