Study On Groundwater Vulnerability In Eastern Area Of Hebei Yangyuan Nihewan Basin

Groundwater is a valuable natural resource, this is the most important source of water inpeople’s production and life. In the national economy. It is play an important role innational economy and people’s lives and ecological environment. In China, there are2/3of the city as a major source of groundwater, especially in the northern region, the situationis more common. The protection of groundwater, which includes the rational use of waterresources, but also include prevention of water pollution. Groundwater system oncedamaged, water pollution caused available resources dwindling, increased supply of water,and directly affects the crisis of production and development of national economy, ofecosystem and human health hazard. Therefore, how to protect groundwater fromcontamination or as little as possible is very important. Groundwater vulnerability reflectsthe potential of contaminated groundwater system, conduct groundwater vulnerability workis the foundation to protect the groundwater environment.The eastern part of Nihewan basin lack of rain, uneven distribution of groundwaterresources, water quality is different. Nowadays, with the development of industrial andagricultural production, production and life wastewater increased, make the region’s waterenvironment have been deteriorating trend. So, it is very impartment for the protection oftargeted planning work particularly to groundwater resources.In this magisterial thesis,learn the research experience domestic and overseas,as the objective zone of NihewanBasin,Hebei,Yangyuan. Reviewed and analyzed groundwater vulnerability evaluation of theconcepts, development and research trend and through field experiment, laboratory test,data analysis, consulted a large number of relevant information and experience data,establishmented index system of groundwater vulnerability evaluation. Selected Depth ofGroundwater, Net Recharge, Aquifer Medial, Soil Media, Topography, Aerationzone,Aquifer Hydraulic Conductivity as the indexes. Closely combining the hydrologicalgeology, topography of geological background material, assessment the groundwatervulnerability.The study area divided into four: Groundwater vulnerability degree is weak, less pollutedareas; Groundwater vulnerability degree is medium, easily polluted areas; Groundwatervulnerability degree is strong, easier polluted areas; Groundwater vulnerability degree isstronger, very easy polluted areas. And analysis the reasos. The imperfect by material limitations and the influence of my lack of knowledge, thegroundwater vulnerability in the study area there exist some problems in the evaluation, stillneeds improvement and perfection.