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山东省东阿县地处黄河中下游冲击平原,其地形地貌受黄河改道和决口泛滥的影响,黄河故道自西南向东北蜿蜒伸展,形成波状起伏的高岗、缓坡、洼地。20世纪60年代在境内西南部位山建立引黄闸,担负着聊城市县的黄灌与向天津输水的任务,70年代在境内人工开挖两大沉沙池,年均引用黄河水2.74亿m3,累计沉沙8.84亿m3。由于特定的地理、地貌特点,沉沙池区内生态系统失调,风、沙、旱、涝
Dong’e County, Shandong Province is located in the middle and lower reaches of the Yellow River impact plain, the topography of the Yellow River by the diversion and the proliferation of flooding impact, the old course of the Yellow River from southwest to northeast meandering stretch, forming wavy ups and downs of high hills, gentle slopes, depressions. In the 1960s, the Yellow River Diversion Project was established in the southwestern part of the country. It undertook the Yellow River irrigation project in Liaocheng City and the task of transporting water to Tianjin. In the 1970s, two large grit chambers were manually excavated in the country, averaging 274 million Yellow River water m3, accumulative sedimentation is 884 million m3. Due to the specific geographical and geomorphic features, the ecosystem in the grit chamber is out of balance with wind, sand, drought and waterlogging