5Samarasa Z, Zierock K H. Off-road vehicles: a comparison of emissions with those from road transport [J]. Science of the Total Environment, 1995, 169(1-3) : 249-255.
6Kean A J, Sawyer R F, Harley R A. A fuel-based assessment of off-road diesel engine emissions [J]. Journal of the Air & Waste Management Association, 2000, 50 ( 11 ) : 1929-1939.
7Lindgren M, Hansson P A. Effects of transient conditions on exhaust emissions from two non-road diesel engines [ J ]. Biosystems Engineering, 2004, 87( 1 ) : 57-66.
8Lewis P, Rasdorf W, Frey H C, et al. Requirements and incentives for reducing construction vehicle emissions and comparison of nonroad diesel engine emissions data sources [ J]. Journal of Construction Engineering and Management, 2009, 135 (5) : 341-351.
10Federal Office for the Environment. Non-road fuel consumption and pollutant emissions, study for the period from 1980 to 2020 [ R]. Bern: Federal Office for the Environment, 2008.
