руйнування

The development of exogenous processes on the Earth's surface is a large-scale problem. Due to the development of exogenous processes there are changes in the composition and structure of the earth's crust and its surface. The destruction of streets, houses and public buildings, roads and railways leads to enormous losses. To predict the development of soil degradation, erosion processes on agricultural lands, which lose annual production areas, leads to the formation of a ravine-beam system and reduces the productive amount of land owned by citizens – is a solution.

The article presents a detailed description of the conservation state of the unique gothic alabaster portal of the parish church in Drohobych. It also defines the position of the portal in the plan of the church. The main reasons and consequences of the deterioration of the alabaster stone are established. The article studies and supplements the historical background on the portal's foundation and the changes that arose during the reconstruction in the twentieth century.