| Ecosystem service is an important natural structure around human activities and provides services for human beings.It is composed of biology and environment and closely related to human life.With the development of economy and the increase of human activities,the destruction of ecological environment is becoming more and more serious.More and more people are aware of the seriousness and timeliness of environmental protection.Since the founding of the people’s Republic of China,with the rapid development of China’s social economy,the development of the transportation industry is particularly rapid,and gradually to the underground traffic space engineering development,therefore,the tunnel construction application is more and more widely,along with the mountain tunnel construction process also has a series of corresponding problems.In this paper,a series of eco-environmental impacts caused by the construction of Taihu mountain tunnel of Shang—He—Hang-speed railway on Deer park of Taihu mountain are taken as an example to study the impact of the construction of high-speed railway tunnel on the service function and value of the surrounding ecosystem,and to quantify the environmental losses accurately.In this study,through the combination of field investigation and simulation calculation,using soil sampling analysis method,flow and hydrous model software to establish the numerical model of groundwater dynamic field,hydrogeological concept model and other methods,and fully considering the mechanism of forest ecosystem service function value,the ecosystem service function evaluation index system is constructed,and the comprehensive analysis and evaluation of the Shang—He—Hang-speed railway are carried out The influence of tunnel construction on the ecosystem of Taihu mountain.The main conclusions of this study are as follows:1.The underground water level in Deer park and the main area of Taihu mountain decreased by 35-50 m due to the tunnel construction.2.The tunnel construction results in the decrease of soil water content by 31.1%-51.0% and the decrease of surface runoff by 65.43%-77.05% in Deer park main area of Taihu mountain.3.The total value of main service functions of Taihu mountain forest ecosystem is 72.1187 million yuan / year.The total value of the decrease of forest ecosystem service function caused by the water shortage of ecological environment caused by tunnel construction is 180 million yuan.In this paper,the impact of the construction of Shang—He—Hang-speedrailway tunnel on the ecological environment of Luyuan mountain in Taihu Lake is taken as an example,and the service function and value of the ecosystem are quantitatively analyzed,which provides a reference for the damage compensation,liability identification and resource protection of the high-speed railway tunnel construction project in the future. |
