The paper outlines preliminary assessment of woods and tree plantings influence on the value of arable lands. Basing on the rich bibliography of the problem and own observation, the author states among others, that: – in the close neighbourhood of agricultural – forest border the yields of plants distinctly decrease, – as the distance from the tree wall increases – yields improve, however on the lands with water deficit, with intensive soil erosion the general balance is positive; on the other lands is rather negative, 14 – negative influence of woods on plant yields in the zone of their close contact depends on their mutual location and appears in the distance up to 15-tree heights (15 h). The proposed algorithm comprises correcting coefficients (percentages in relation to the basic value of arable lands) in the neighbourhood of woods relate to the areas with water deficit in soils with regard to distance and geographical orientation – table 1; and to the areas of differentiated soil quality and contrasting aspect of slopes (S and N) – table 2. The decrease of agricultural real estates value is observed in the areas of water deficit in the distance zones up to 2 h, however ...
