Analysis of the soil-bank-microclimate relation in an open mining area in the Mátraalja

Abstract

Moving away of a given amount of soil matter cannot be eluded in the course of an open mining area. At the end of this procedure, placing of this waste matter is to be performed. This matter means new surface formation and surface cover in the new placement area. The present work shows how these questions were arisen in the open mining area situated in the foreground of the Mátra Mountains, as well as which kind of solutions were developed, furthermore, what are the consequences of these solutions for microclimate of the area. This is a very important question, because this part of Hungary is a valuable vine and fruit growing area, and the waste matter that has been placed affects habitat conditions of the area. Examples for surface change-microclimate relations analysed hereby show the main point of this problem well and by applying them in practice, efficiency of recultivation of the area can considerably be increased. The problem was studied based on the results of microclimate measurements performed in two sites. One site was in the vicinity of Halmajugra village, the other one was close to the power station waste deposit in Őzse.
Modification of flow pattern developed in the original field level and field formation structure can be detected in both cases. In case of Halmajugra, likelihood of development of frost corner was decreased by the valley formation that corresponds the dominant wind direction, while in case of the power station waste deposit in Őzse the frost corner can evolve in calm. Habitat circumstances improved in the former case, while declined in the latter that concern relation between circulation situations and frost situations braking or becoming stabilized in connection with it.
The conclusion is that to modificate the shape of surface is reasonable only after precise and elaborate survey of circulation and surface temperature situation. Situations when natural movement of air is not limited can mean favourable habitat conditions, however, its decline can be expected in any other case.