Research and Application on the Key Technology of Ecological Route Selection in the Mountain Area of Northern Guangdong Province

Based on the express way from Huizhou to Qingyuan section in Guangdong province, this study used the "3 S" technology to collect the eco-environmental factors in the mountain area of northern Guangdong province. By quantified analysis, various eco-environmental indexes were assigned and standardized. In addition, the analytic hierarchy process was used to set up the weight of respective index factor, as well as to establish the regional ecological evaluation criteria system of the mountain area in northern Guangdong province. It consisted of two primary criteria and ten secondary criteria. As a result, this method was proved to be an available method on route planning for highways in different areas, which was worthy of promotion and utilization