1. AASHTO, 1991. A guide for transportation landscape and environmental design/prepared by the AASHTO Highway Subcommittee on Design, Task Force for Environmental Design, 2nd ed. American Association of State Highway and Transportation Officials, Washington, D.C.
2. Characterization of soil compaction at construction sites and woody plant response;Alberty;J. Environ. Hortic.,1984
3. Weather and climate;Andresen,2009
4. Root growth throughporous media under controlled conditions;Aubertin,1965
5. Roadside vegetation design characteristics that can improve local, near-road air quality;Baldauf;Transp. Res. Part D Transp. Environ.,2017