Summary:

The paper presents a preliminary assessment of the influence of chosen natural-agricultural elements (concerning soils, agroclimate, forests’ neighbourhood) on the value of arable lands. The review of the above mentioned parameters and their effect on the increase or decrease of the yields of agricultural plants has also been presented. The author proposed coefficients correcting the basic value of ground plots, established by the mixed approach method with the use of valuation indices comprising: degree of soil compactness, degree of soil culture, water conditions and erosion hazard (k₁ to k₄), unfavourable agroclimatic conditions (k₅) and neighbourhood of woods (k₆). The corrective coefficients to the formula of the arable land value (W_go) depend on soil classes (and attached to them standard parameters) and they range, for various soil features, from –0,10 per one degree of erosion hazard to 0,05 per one degree of soil compactness, soil culture, or per one group of water conditions categories. For the agroclimate they range depending on the type of plants, from –0,18 do 0,and for various conditions of forest neighbourhood with arable lands from –0,30 to 0,07. Basic data concerning natural – agricultural features of arable lands, except for reviews and land investigations, can be obtained among others from the soil maps, soil classification maps and aspecially from soil – agricultural complexes maps supplemented by annexes. It is still necessary to improve the values of the proposed coefficients through the cooperation with specialists in agriculture and forestry.