Study On Ecological Environment Quality Of Fuxin Based On Remote Sensing Ecological Index

The ecological environment provides human beings with natural resources,space environment and basic material conditions.It is the basic guarantee for human survival and the material basis for social development.Therefore,the quality of ecological environment is closely related to human life.How to quantitatively express the status and development trend of ecological environment and scientifically evaluate the quality of ecological environment has gradually become one of the hot topics in current research.This paper takes Fuxin City,Liaoning Province as the research object,selects the Landsat satellite imagery in 1996,2000,2008 and2016 as the research data,and uses ENVI5.1 as the remote sensing data processing platform,as well as the data analysis and mapping tools.The Ecological Sensing Based Ecological Index(RSEI)comprehensively analyzed and evaluated the ecological environment quality status of Fuxin City from 1996 to 2016,and as a exploration and attempt to evaluate the ecological environment quality.The RSEI index of each period was obtained by processing and analyzing the Landsat image data of Fuxin City,and the mean values were 0.519,0.576,0.687 and 0.621.The research shows that the quality of eco-environment in Fuxin City has increased from 1996 to 2016.The quality of eco-environment has increased and then declined in the past 20 years.In order to better understand the ecological environment quality of Fuxin City,this paper classifies and indexes the RSEI index values of different years.The results of the research show that the ecological quality of Fuxin City is generally rising from 1996 to 2016;In the past 20 years,the RSEI of the study area has mainly changed from 1,2 to 3,4,and 5.The area of ecological quality improvement has accounted for 58.41% of the total area,while the area with poor ecological quality accounts for only 0.23% of the total area.The areas with obvious changes in ecological quality are mainly concentrated in the northeast and southwestern regions of Fuxin City.The main reason is the series of environmental problems brought about by the continuous advancement and development of urbanization in Fuxin City in recent years,and the impact of the Horqin Sandy Land.The problem of desertification brought about;whether it can give high priority to the ecological environment while carrying out rapid urbanization construction and fully protect and repair the damaged ecological environment,has become an important determinant of the changes in the ecological environment quality of Fuxin City.According to the change level of RSEI index of each district and county in the study area from 1996 to 2016,the ecological environment of Fuxin City has been improved,and the ecological environment qualityis generally at the “general” level.Although Fuxin City has always paid attention to ecological environmental protection and restoration work,it has also achieved certain results,but the environmental pollution trend is still not optimistic,and there are still some problems in the ecological environment.Therefore,the city's ecological environment construction and protection work needs to be further improved.