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1 淮河桐柏流域区内水资源状况大坡岭水文站的24年资料表明,淮河在洪水季节洪水流量达2700m~3/s,而枯水季节只有0.27m~3/s。桐柏县浅层地下水资源少,只有沿河平川有较少数量的浅层地下水。桐柏县淮河流域区降水量丰富,平均为1100mm,但降雨年际变化大,年内分配不均匀,汛期雨量约占全年雨量的70%,但由于拦蓄能力有限,可利用量极少,大都直接流失或渗
1 State of Water Resources in Tongbai Watershed, Huaihe River The 24-year data of Dapingling Hydrology Station show that the flood discharge of the Huaihe River reached 2700m ~ 3 / s in flood season and only 0.27m ~ 3 / s in dry season. Tongbai County, shallow groundwater resources, only a small number of shallow rivers along the shallow groundwater. The area of Huaihe River Basin in Tongbai County is rich in rainfall with an average of 1100 mm. However, the interannual variation of rainfall is large with uneven distribution during the year. The rainfall in flood season accounts for about 70% of the annual rainfall, but due to limited storage capacity, Direct loss or infiltration