Appraisal System Construction of Ecological Greening of Expressway in Plain Area

Highway Departments everywhere are greening the highways.The forms of greening are various,but the results varied a lot.This paper defines the concept of highway ecological greening,and thinks the ecological greening as the foundation and conditions recovering ecological environment in the highway.On the basis of analysis and summary,the paper summarizes the appraisal principles and methods of highway ecological greening,builds a appraisal system by using the AHP,taking the road section as the appraisal unit and from the aspects of security features,ecological features,landscape features and economic benefit.To a certain extent the appraisal system can scientifically,objectively measure and evaluate the current status and developing level of ecological greening in a certain area.