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由黑龙江、松花江、乌苏里江及兴凯湖冲积而成的三江平原,沼泽和草甸发育。多年来,通过沼泽疏干,建立起农场,使这里已发展成为我国重要的商品粮基地。当前,围绕开挖别拉洪河移道工程、疏干沼泽、从而扩大耕地面积的作法,尚持有不同意见。因此,通过对黑龙江省博物馆于凤阁等同志1978年从移道工程中所采到的植物化石和孢粉样品的研究,将有助于了解该地历史植被,恢复当时的自然环境,进而为三江平原的利用提供参考。
The Sanjiang Plain, swamps and meadows developed from the alluviation of Heilongjiang, Songhua, Wusuli and Xingkai lakes. Over the years, the farm has been established through swamp dredging so that it has developed into an important commodity grain base in our country. At present, we still hold different opinions about the project of moving the Balala river and moving the swamps to expand the arable land. Therefore, the study of fossil plants and sporo-pollen samples collected from the relocation project by Yu Fengge and other comrades in Heilongjiang Provincial Museum will help to understand the historical vegetation and restore the natural environment at that time. Sanjiang Plain to provide reference.