| Horse Lake is located in the northeast of Leibo County,Liangshan Prefecture,Sichuan Province,the upper Jinsha River.It is the third largest natural lake in Sichuan province with Qionghai Lake and Lugu Lake.It is the fourth largest deep water lake in China after Tianchi in Changbai Mountain in Jilin Province,Fuxian Lake in Yunnan Province and Kanas Lake in Xinjiang.It has been rated as a provincial scenic spot,a provincial geological park,and a pilot project of the National Wetland Park.There are many ruins of the three countries in the Horse Lake area,and it is also an important historical witness of the harmony between the Han and the Yi people.As a result of unplanned tourism development in the early stage,a large number of outsiders and local residents built randomly by the lake.As the main position of the strategy of "tourism developing county",Liangshan Prefecture and Leibo County attached great importance to the survival and protection of lake resources in Horse Lake.Based on the analysis of the changes of lake morphology and related influencing factors by remote sensing images of Horse Lake in the last 25 years,this paper tries to find out the theoretical and data basis for the ecological environment change and its causes of Horse Lake,and puts forward the countermeasures of sustainable development.First of all,on the basis of a large number of research and related theories,this paper defines the scope of the study area,analyzes its natural geographical environment and human environment analysis,and looks from the regional geological background and other related geological characteristics.Horse Lake is a quake-dammed lake with a long history and rich national culture.Secondly,In this paper,the lake area information of Horse Lake is extracted from the remote sensing image of Horse Lake which has been preprocessed by ENVI for nearly 25 years.The method of supervised classification is used to obtain the trend of drift area change in Shanghai.The results show that the lake area is reduced,the center of mass is shifted and the landscape index is changed.At the same time,it was found that the buildings around Horse Lake changed greatly.Then,the correlation analysis and grey correlation analysis of lake area and related factors were studied.The related factors include human factors and natural factors.Natural factors include annual mean evaporation,annual maximum temperature,annual minimum temperature,annual average temperature,annual average precipitation.Moreover,Human factors choose GDP growth rate,population growth rate,tourism population growth rate.The results show that in the past 25 years,there are four main driving factors that influence the lake area of Horse Lake,namely,the total population of Leibo County,annual precipitation,annual mean minimum temperature,and surrounding building area.Finally,according to the analysis results and the actual situation,measures are put forward for the protection and tourism development of the Horse Lake.There are four sustainable development measures proposed,which are the integration of multi-planning,the promotion of the ecological environment of Horse Lake,the demolition of illegal buildings,and the development of ecotourism with characteristics. |
PDF Full Text Request