Evaluation Of Geological Environmental Conditions In Chaoyangchuan Area Of Yanji City,Jilin Province

Geological environment is an important part of the natural environment on which human beings live.The quality of geological environment limits the intensity of human engineering activities.Therefore,it is necessary to carry out regional geological environment evaluation,and to develop regional land use and social development plan for promoting regional sustainable development.With the social and economic development and productivity improvement,the intensity of human engineering activities become more and more intense,industrial and agricultural pollutant emissions cause deterioration of groundwater quality,and more and more serious pollution.And it also induces geological disasters as security risksto the residents’ life and property.Therefore,it is of great significance to evaluate the geological environment for sustainable development and strengthening the construction of ecological civilization.In this paper,the Chaoyangchuan area of Yanji City,Jilin Province as the study area,the hydrogeological conditions and engineering geological conditions of the area are systematically analyzed and divided according to the groundwater type and water richness and engineering geological characteristics respectively.On the basis of the above work,groundwater quality evaluation,groundwater pollution assessment,geological hazard risk assessment,soil pollution evaluation,soil erosion evaluation and so on were carried out.The harm and danger of the main environmental geological problems are analyzed synthetically.Finally,the suggestions of geological environment protection and prevention are put forward.Through this the geological environment evaluation,it is get two main conclusions.One is that the phreatic water in this area is poor quality,small available quantity,and irregular distribution.And the pollution of the phreatic water is also very serious.Therefore,the groundwater environment is easily affected by human engineering activities.Other is that geological disasters induced by human engineering activities become more serious,but the scopes of them are limited,so these geological disasters are just with the small risk.Overall,the geological environment of this area is fragile,so it is necessary to strengthenprotection in the development and utilization.