The Rice Terraces of the Philippine Cordilleras — inscribed by UNESCO in 1995 and comprising five terrace clusters (Batad, Bangaan, Mayoyao, Hungduan and Nagacadan) built by the Ifugao people over roughly 2,000 years at elevations above 1,000 metres — were placed on the List of World Heritage in Danger in 2001. UNESCO and the Philippine government cited deforestation, disuse of terraces as young people migrated to cities, climate-change-linked erosion and earthquake damage as the drivers of decline.
The terraces are sustained by the muyong system — private, community-managed forest patches above each terrace cluster that store and slowly release water to the paddies below, an indigenous nature-based water-and-soil-retention infrastructure documented to hold around 264 indigenous plant species, most endemic to the region. Conservation financing after the danger listing combined a UNESCO emergency allocation of US$153,200 for site conservation with a larger Philippine government structural-repair programme, including a roughly 50-million-peso (about US$1.18 million) reconstruction of the landslide-damaged Batad terraces completed over four months.
The combined international and national financing, channelled through the dedicated Ifugao Rice Terraces and Cultural Heritage District Office, was judged sufficient by the World Heritage Committee to remove the site from the Danger List on 27 June 2012 — eleven years after it was listed, and one of the relatively few heritage-landscape sites to have been delisted rather than lost or downgraded.
As a caveat, abandonment pressure has not been eliminated: UNESCO's own citation for the 2001 danger listing explicitly named 'disuse' of terraces by out-migrating farming households as a continuing structural threat, and upkeep still depends on manual terrace-wall labour that offers little cash income relative to urban wages, so the delisting reflects crisis-level stabilisation rather than a fully solved abandonment problem.
Read the full analysis: https://www.ivanhenares.com/2012/06/rice-terraces-of-philippine-cordilleras.html
Where this practice's information was retrieved from, and when.