The protection of agricultural land is an important issue because the area of food production per capita will be decreasing by several estimations in the next decades. The planning measures to ensure the preservation of valuable arable land are among the objectives of county plans in Estonia.

Land cadastre differs from other types of cadastres, because the object of land cadastre is the land as a source of wealth and means of production. Specific character of methodology of cadastre is determined by features of the land.

Economic development is associated with changes in the use of available production factors, including land. Under the Common Agricultural Policy of the European Union, land resources are no longer only a factor of agricultural production but they have become also a source of public goods.

The aim of this paper is to compute a more accurate orthometric height of Mount Kilimanjaro by utilizing the current most precise geoid model for Tanzania, TZG08, together with the 1999 and 2008 GPS campaigns ellipsoidal heights using GPS levelling method.

The concept in this paper builds upon basic principles of sustainability to address the problem of how a sustainable project must contribute to economic and social welfare without depleting natural resources, destroying the environment or harming human health..