In 2002, the Ministry of Agriculture and Rural Development prepared a plan for sustainable agricultural development (PSAD). In addition to measures concerning the use of treated wastewater in agriculture and reforms with regard to livestock, it included others concerning the maintenance of open landscape for sustainable grazing. For example, a two-year pilot project under way pays farmers through an auction system to maintain farmland for biodiversity conservation. A similar scheme related to grazing is mainly implemented in areas for which there is no alternative agricultural use.