Research On Sustainable Utilization Of Groundwater Resources In Heilongjiang Province Tailai County Urban

Tailai County area was a part of Qiqihar City in Heilongjiang Province , Located in the southwest Heilongjiang Province and the southern of Qiqihar, and in West Plain area, groundwater is important source of water to the county Tailai. With the continuous development of national economy, increasing demand for water, between supply and demand have become increasingly prominent within the city. Therefore, it is necessary to Tailai County groundwater resources evaluation, Analysising the distribution and occurrence of groundwater conditions, Comprehensive understanding of water quality of groundwater resources in the region, Calculating the amount of groundwater resources, And geting raise the amount of recoverable resources, the exploitation potential of resources. On this basis, while planning for different levels of supply and demand balance in groundwater, which served as a regional sustainable development and utilization of groundwater resources important basis and foundation support.Basing on collecting the geological and hydrogeological data of Tailai county area, establishing the establishment of urban geological model, defined lithologyto getting the structural characteristics of groundwater aquifers and distribution profiles.Evaluation of groundwater resources is mainly of Quaternary unconsolidated rock pore water (including the pore water, pore water pressure), the third porous fractured water system, and study the conditions of groundwater storage of Tailai county. The main method of groundwater resources evaluation is groundwater dynamics formula (analytical method) and the water balance to evaluate the groundwater resource of Tailai County, Overall, the region of negative equilibrium groundwater in the water, do not have to continue to increase the status of mining or extraction of the potential need for appropriate control of the status of extraction, Also carried out on drinking water quality evaluation and assessment of groundwater quality, drinking water quality assessment issued under the state's "drinking water health standards" (GB5749-2006) evaluation, the result revealed that iron and manganese ions exceeded; Groundwater quality evaluation under the "Groundwater Quality Standard" (GB / T 14848-93) using a single component evaluation, the mean evaluation method, Nemerow Evaluation and Fuzzy comprehensive evaluation of the water source was groundwater quality evaluation, comprehensive analysis to obtain the water source in the region's water quality, for the Class II or Class III water.Based on the evaluation of groundwater resources, water demand prediction was made by the method based on fixed area in 2010, 2020, two years , the groundwater extraction under the average rainfall for many years ,supply and demand balance analysis showed that: by 2010, demand gap is 763.165×104m3 / a; to 2020, the demand gap 1280.107×104m3 / a.The research on the county district Tailai geological and hydrogeological conditions of the system to collect and collate, and establishing the geological structure model and hydrogeological conceptual model, And on this basis, evaluation both from the water quantity and quality of groundwater resources was made. At the same time in 2010, 2020, the available groundwater supply and demand balance analysis was carried out for the sustainable development and utilization of groundwater resources to provide a scientific basis.