Research On Inner Mongolia Hailar River Upstream River Vaiiey Plain Ground Water Resources

The study area is located in the upstream area, hailaer river valley plain about 20 km from hailar east huck town to the northeast by the town of luomude, geese, tooth stone city town to ur the sweat. The study area is 109 kilometers long,87 kilometers wide, covers an area of 4243 km2. Based on the hydrogeological mapping, hydrologic geophysical, hydrogeological drilling and pumping test, the dynamic monitoring of groundwater, soil and water samples of work such as the field sampling and analysis, find out roughly the burial conditions and distribution law of groundwater in the area, find out the initial groundwater recharge, runoff and discharge conditions. At the same time, using the method of equilibrium of the groundwater resources in the studied area is evaluated and the recoverable resources are calculated.Research area is mainly composed of quaternary system aquifer on the pleistocene series and holocene round gravel and the thin layer of gravel sand and pebble, thickness in the center of the valley generally 10 to 30 m, the thickness of 37.29 m, single well water inflow generally greater than 3000 m3/d, hydrochemical type of HCO3-Ca、HCO3-Ca·Na、HCO3-Na·Ca,water salinity is generally less than 0.5 g/L. Through calculation, the research class quaternary unconsolidated rock pore water storage capacity in the area of 79.047×10 m3, for many years the average natural recharge is 1.520522×104 m3/a, recoverable resources is 9123.13×104 m3/a, 24.99×104m3/d. Hailaer river single recharge is 12381.49 m3/d·km wide, namely 451.92×104m3/akm, from crossing the river single recharge is 13080.17 m3/d"km wide, namely 477.43×104m3/a·km.