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我省位于黄河中游,全部面积156,400平方公里,其中石山区与黄土丘陵地区占总面积的70％以上。高山陡峭,坡度很大,同时由于地形狭窄,许多河流都是长度短而坡度大;再加雨量分布不匀,多集中在六、七、八三个月,这三个月的雨量就占年总雨量的70～80％。因而每当夏汛时期,雨水下降,洪水最易暴发,表面肥土随流而下,水量稍大,扶带巨石砂砾,时常造成山洪灾害,对农民
The province is located in the middle reaches of the Yellow River, with an area of 156,400 square kilometers, of which Stone Mountain and Loess Plateau occupy more than 70% of the total area. Due to the steep terrain and steep slopes, many rivers are short and steep because of the narrow terrain. In addition to the uneven distribution of rainfall, they are mostly concentrated in six, seven and eight months. The rainfall in these three months accounts for The total rainfall of 70 to 80%. Therefore, whenever the summer flood season, the rain drops, the floods most likely to occur, the surface of the soil with the flow of water slightly larger, with boulder gravel, often lead to flash floods, farmers