• Data reference period
• Geographic localization (NUTS - 2013)
• Sex

• FARM MANAGER:  A person responsible for the current, daily management of an agricultural holding and who must have a regular job there. Daily management of the holding is understood to be making decisions every day on work to be done on the holding and operations without any great economic repercussions on the operation of the holding.
• REFERENCE PERIOD:  The length of time for which data are collected, e.g. a specific day, month or year.
• OWNER-FARMED AGRICULTURAL AREA:  The utilised agricultural area which is the property of the holder. The concept also considers owner-farmed agricultural land to be that farmed by the holder as usufructuary, lease holder or under any other equivalent legal instrument, where: a) the usufructuary is the beneficiary of a right named usufruct, which consists of the right to take the use or product of a tied asset for the usufructuary's own benefit, obtaining all the profit that the usufruct asset may produce; b) a leaseholder is the beneficiary of the right to own plantations set on another's land, with the consent or authorisation of the land owner.
• AGRICULTURAL HOLDING:  Technical-economic unit that uses common production factors such as labour, machinery, facilities, land, among others, fulfilling the following four conditions: 1) yield agricultural products or maintain, in good agricultural and environmental conditions, the lands that are no longer used for productive purposes; 2) reach or exceed a certain size (in area or number of animals); 3) be subject to a single management; 4) be located in a well-defined and identifiable area.
• FORMA DE EXPLORAÇÃO:  Forma jurídica pela qual o produtor dispõe da terra, determinando a relação existente entre o(s) proprietário(s) das superfícies de exploração e o responsável económico e jurídico de exploração (o produtor), que tem dela a fruição.

(No. of managers with owner farming type of tenure (UAA)/ Agricultural population)*100