On The Ecological Environment Impact Assessment Of Groundwater Pollution Caused By Qarhan Salt Lake Development

In recent years, with the rapid development of the salt lake industry, serious damage to salt lake resources is appeared; it affects the Eco-Environment of salt lake largely. So it is very important to evaluate the influence on the Eco-Environment by groundwater contamination, which is made by the exploitation of salt lake. But up to now, the correlated research is still blank.Firstly, on the basis of discussing Cha'erhan salt lake eco-environmental actuality, the author systematically studies the hydrogelogical condition of Cha'erhan salt lake, groundwater types of salt lake, conditions of groundwater's supplement, flow, emission, and evaluates the groundwater quality of the salt lake. Considering the particularity of salt lake recourses, the industrial value of groundwater is evaluated with the method of single water quality index, and the industrial value of different chemical types is confirmed. Then the author analyzes the influents factors of contaminated groundwater with the exploitation of salt lake resources on Eco-Environment. On the basis of analyses, considering the main factors, which can reduce the quality of salt lake environment and jeopardize people's lives, selecting twelve items such as K+, water as evaluation factors, and using the method of salt lake Eco-Environment influence, the influence of environment is evaluated. For the peculiarity of salt lake, there are not clear and definite classifications of appraising criterions; the classification is ascertained from no influence to serious influence." By ascertaining the evaluating parameters, the result is that the Dabuxun region is slightly polluted; the Cha'erhan region, Bieletan region and Huobuxun region are no polluted. Lastly, the author discussed the problems of salt lake's exploitation and the way to achieve the sustainable development of Cha'erhan salt lake.