Land need assessment for the project of common facilities and its dependence [Nezbytná výměra půdy pro plán společných zařízeni pozemkových úprav a jejizávislost]

The project of common facilities is a very important part of the process of land arrangement. It helps to ensure a lot of public functions,for example permeability of landscape,to preserve fertility of soil,to decrease surface outflow and prevention from floods,the protection and production of environment etc. It is essential to ensure sufficient land area to be able to suggest and carry out such plans of common facilities. It will be more and more difficult to ensure this plan due to the fact that the stateowned land is still decreasing. In the areas where the state-owned land still exists,it could be possible to reserve the part of these areas for this objective. This study analyses projects of common facilities in 33 cadastral areas and series of another variable values with the aim to find or to exclude different dependences. It could also help to estimate the extent of reserve areas. The most of examined values did not show any dependence but some of the tested values show the certain dependence.