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三江平原位于我国东北边陲,是黑龙江、松花江、乌苏里江下游汇流之所。境内有沼泽荒地3,000余万亩,由于地势低平,土质粘重,排水不畅,形成常年或季节积水。 现有的明渠系统排水方法,适用于排水出路良好的地区,但在排水出路不良或远离承泄区的地区,往往收效甚微,致使大片的沼泽地至今未能开垦;即使某些地段已垦为
Sanjiang Plain is located in the northeast border of China, is the confluence of Heilongjiang, Songhua River, Wusuli River. The territory of more than 3,000 acres of marsh wasteland, due to the low level, soil sticky, poor drainage, the formation of perennial or seasonal water. The existing open channel drainage system is suitable for well-drained water outlets. However, in poorly-drained outlets or areas far away from the containment area, there is often ineffectiveness resulting in large areas of marshlands that have not been reclaimed. Even some areas have been reclaimed for