the stewardship and use of forests and forest land in a way, and at a rate, that maintains their biodiversity, productivity, regeneration capacity, vitality and this potential to fulfil, now and in th, particularly, that branch of forestry concerned (...) with the over-all administrative, economic, legal and social aspects, and (...) with the essentially scientific and technical aspects, especially , metsa uuendamine, kasvatamine ja kasutamine ning metsakaitse