Zhoushan Islands Regional Ecological Environment Evaluation Based On RS And GIS Technology

In recent years,in view of the island development activities is increasing,the ecological environment of the island region and human social interaction,conflict and drama mutual restriction,therefore has important practical significance to strengthen the scientific development,monitoring and protection of the management and use of the island.New District of Zhoushan islands,China's marine economy is a strategic decision to set up a new area,a total of 1390 islands,from the number of islands,the Zhoushan islands,covering about 1/4 of our island.Through the research and evaluation of ecological environment of Zhoushan islands region,on China's future development and protection of some islands and uninhabited islands,scientific management,prediction has typical reference significance to evaluate the status quo of island ecological environment.In this paper,based on the existing ecological environment evaluation at home and abroad,taking the Zhoushan islands in Zhejiang Province as an example,the regional ecological environment assessment method of the Zhoushan archipelago is constructed by using RS and GIS technology:First on the Zhoushan islands 2015-2016 GF2 remote sensing images as the data source,to preprocess the panchromatic image data source,the spectral characteristics of the study area was analyzed by using RS technology,the formation of Zhoushan islands region based information database;Then the use of GIS technology to the islands of Zhoushan is divided into a number of evaluation of the regional ecological environment,the evaluation index system of evaluation index system,the dimensionless treatment after using broken line type,rational use of AHP weight distribution,through the extraction of vegetation cover,land degradation,water gas factors and human activity index,the calculation of the comprehensive index of ecological the environmental condition,rank condition of the ecological environment;Finally,according to the evaluation results to predict and evaluate the status of ecological environment of the island of Zhoushan,and puts forward the countermeasures and suggestions of management,and further analysis of application results in the regional economic development,natural ecological environment evaluation in Zhoushan islands.The innovation and deficiency of this research are put forward,and the future development direction of the island ecology research is prospected.