Legal basis: People's Republic of China (PRC) Rural Revitalization Promotion Law Article 40 The state practices the system of farmland protection and the restoration, fallow and recuperation of grasslands, forests, rivers and lakes. The people's governments at or above the county level and their relevant departments shall, in accordance with the law, delimit the time and areas where fishing in rivers, lakes and sea areas is restricted or prohibited, and may, according to the over-exploitation of groundwater, delimit the areas where the exploitation of groundwater is prohibited or restricted. It is forbidden to illegally transfer industries and enterprises that pollute the environment and destroy the ecology to rural areas. It is forbidden to illegally transfer urban garbage, industrial solid waste and substandard urban sewage to agriculture and rural areas. It is forbidden to discharge sewage and sludge with excessive heavy metals or other toxic and harmful substances into agricultural land, as well as dredged sediment, tailings and slag that may cause soil pollution; It is forbidden to use toxic and hazardous wastes as fertilizers or for land reclamation. The local people's governments at all levels and their relevant departments shall take measures to promote the recycling of waste agricultural films, pesticides and other packaging wastes of agricultural inputs, promote the resource utilization of crop straws and livestock and poultry manure, and strictly control the feeding cage culture in rivers, lakes, reservoirs and coastal waters.