ASSESSMENT OF THE INFLUENCE OF THE FOREST ECOSYSTEM ON THE PRODUCTIVITY OF THE ADJACENT AGRICULTURAL LANDSCAPES OF THE MARTUNI REGION OF

Abstract

The investigations have disclosed that in case of applying the same agro-technical measures the closer the agro-ecosystem is located to the forest ecosystem, the higher the yield capacity of the cultivated agricultural crops is, and vice versa; the farther the agro-ecosystem is, the lower the yield capacity is.

The estimations of economic efficiency have shown that under the influence of forest ecosystem, the productivity of the agro-ecosystem was the highest at a distance of 280 m from the forest edge, where the triticalis yield capacity made 45,6 c/ha, while the economic efficiency of tomato cultivation per hectare made 235500 AMD, pteuto – 912 000 AMD and that of the cabbage– 980000 AMD. While at a distance of 1000-1050 m from the forest edge the economic efficiency of the cultivated agricultural crops was practically reduced to zero.

The studies have proved that when establishing afforestation belts they should be located at a distance of no more than 600 m, where the forest belts will have more favorable effect on the sustainability of the agro-ecosystems and will increase their productivity.