What do you mean by "three villages and one district"

Ecological immigrant villages, poverty-stricken villages with poverty alleviation files, demonstration villages for party building, and concentrated contiguous industrial zones. According to Sohu News Network, "three villages and one district" refers to poor villages, non-poor villages with poverty incidence exceeding 10%, pre-poor villages in that year and poor areas with poverty incidence exceeding 10%. These areas and villages are facing serious poverty problems, which need special attention and support.