3S Ecological Applied Research Of Environment Quality Evaluation In The Sui Man Road

Large-scale road construction is the destruction of the ecological environment in the region as a most serious human disturbance, eco-environmental quality evaluation can objectively reflect the ecological environment and provide a scientific basis for the region ecological restoration.Analysis of the theory of Highway eco-environmental quality evaluation, based on the evaluation levels of delineation and of the scope of the evaluation criteria, combined with tests to determine the actual situation of the section of the evaluation section of the scope of grading and evaluation. Comparative analysis of the field of environmental assessment of the seven kinds of commonly used evaluation methods and the scope of application of the advantages and disadvantages, and ultimately adopt the composite index method to eco-environmental quality evaluation for the selected test sections of this paper.Take Sui Man Road from K215 +000 to K237 +000 of highway construction above the building before and after the remote sensing image as data source, application of the ERDAS IMAGINE image geometric correction of remote sensing, splicing, pre-treatment buffer analysis. Field surveys within the study area are to obtain typical characteristics of categories of images and put forward the process of image correction and training of selected samples to establish the requirements of the template, for the establishment of the correct template for the supervised classification guarantees the establishment of a good classification of the application template on the test section of the 500m on both sides of the road within the scope of the status quo of land use types of supervised classification, access to evaluation index value that is forest land, other land for construction purposes, such as urban construction land area. Get the obtained eco-environmental quality evaluation index value be used in index evaluation method, respectively, building on the highway before and after the construction of a quantitative ecological assessment of the quality of the environment, and the results of two evaluations were analyzed.Application to 3S technology timely and accurate access to Highway eco-environmental quality evaluation value of the required evaluation. Traditional methods to overcome the lack of access to road construction in front of the shortcomings of the value of evaluation index, which for other highway construction projects in eco-environmental quality evaluation for reference.