Wskazniki glebochronnego dzialania roslin

Indicators useful to assess the soil conservation-related functions of plants and their utilization potential were presented in the study. Vegetation cover indicators relating both to the winter season and to the whole year are useful to the assessment of soil conservation - related function on the rotation, farm, region and courttry levels. The choice of indicator largely depends on the availability of source data. The whole year vegetation cover indicator is more complex than that related to the winter season only; the first one contains the elements of surface area as well as those bearing on the extent of year-round vegetation cover. At the same time, it is more comprehensive when vieved in aspect of the agro-ecological assessment of agricultural space. However, at higher number of constituent elements involved in the agro-ecosystems or in the whole area, the environment stability indicator is useful to assess the farming on regional or national levels.