东北圩田 Noordoostpolder

圩田 polder ; dike paddy field

贝姆斯特圩田 Beemster Polder ; De Beemster

圩田土壤 polder soil

参阅艾瑟尔圩田 IJsselmeer Polders

池州圩田 Chizhou Polder Land

圩田管理 the management of dyke farmland

圩田排水 drainage of embanked field