Purpose. To develop methods for the introduction of the correction coefficients of relief to clarify the environmental sustainability of a farmland area and differentiation of the coefficients for steepness of slopes and truncation of soil. Methodology. The method for calculation and introduction of the coefficient of morphological stability of relief Kc to the formula of the environmental sustainability of a territory with medium and strongly truncated lands, as well as with weakly or not truncated ones was developed. For this purpose the calculative and constructive, comparative method and the method of analogy are used. The method has been tested on the territory of Chernivtsi region. Findings. The rates of environmental sustainability Ke.s. of an agricultural area with corresponding characteristics of relief have been adjusted. Furthermore, Ke.s. coefficients in the context of different degrees of land truncation and in the context of different intervals of steepness of slopes have been calculated. Calculation of ecological sustainability in Chernivtsi region and its characteristic structure of agricultural land and erosion performance have been also adjusted. Originality. The definition "erosion making factors" has been argued for integrating the indicators of the slope steepness and the degree of truncation. It is proposed to use ratios of environmental sustainability, adjusted for relief, which, unlike the traditional methods, takes into consideration the specific integrated indicators. Practical value. Application of the proposed methodology of coefficient correction for relief and erodibility of lands distributed in the range of 0,7 to 1,0 is able to present a more realistic picture of environmental sustainability of an area in terms of various organizational and territorial units (village, town and city councils, administrative areas, including newly formed administrative-territorial division) and use them when making a design and management solutions.

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