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三江平原是我国未被充分开发的一块沃土,总面积约1.6亿亩,其中低湿地面积5966万亩,占全区总面积的35.6%,已垦低湿耕地2180万亩,占低湿地面积的40%。据30年资料统计(1954～1984),有16年为洪涝灾年,频率为52%。1981年大涝,淹没、内涝面积达613万亩,受灾耕地达2830万亩,占总耕地面积的51%,其中绝产面积1680万亩。八五○农场,地处三江平原东部虎林县境内,北靠完达山,南临穆棱河,属穆兴低湿平原。现有耕地45万亩,其中低湿耕地约36万亩,占耕地面积的80%.据20年(1967～1987)历史资料记载,有9年是涝灾.由于低湿耕地的地势低平,土质粘重,排水不畅(没有治涝工程或工程不配套),加之地下水位
The Sanjiang Plain is a fertile land that has not been fully exploited in our country. The total area is about 160 million mu, of which 59.66 million mu is low-wet land, accounting for 35.6% of the total land area of the entire region. 21.8 million mu of low and wet cultivated land have been cultivated, accounting for 40% %. According to 30 years of statistics (1954 ~ 1984), there are 16 years of floods, the frequency is 52%. In 1981 floods, inundation, waterlogging area of 6130000 acres, 28300000 acres of arable land, accounting for 51% of the total arable land, of which 16800000 hectares of abortion area. Farm on August 5, Hulin County is located in the eastern part of the Sanjiang Plain, north of Wandashan, south of the Muling River, Mu Xing low wetlands. The existing 450,000 mu of arable land, of which about 36 million mu of low-wet land, accounting for 80% of arable land. According to 20 years (1967 ~ 1987) historical data records, 9 years is flooding. Heavy, poor drainage (no waterlogging works or engineering does not match), combined with the groundwater level