In order to reduce traffic jams further,this paper makes a non-liner function model through taking green wave system composed by multiple single-point signal control intersections as study object,in which the shortest vehicle travel time of main stem is adopted as the objective.

It introduces a simple green wave system composed by two-simple-point signal control intersections as an example, and makes a non-liner function model, in which the shortest vehicle travel time of main stem is adopted as the objective; the phase effective green light time, saturation and cycle time as the restrictions.

Analysis of air bacterium pollution in function area and sterilization effect of urban greenbelt system in Lanzhou city;

On the function of the simulated greenbelt system in removing the storm-resulted run off pollution in the urban areas;

sublanceolata, Ficus microcarpa, Ficus benjamina, Mangifera indica, Michelia alba and Elaeocarpus apiculatus grown in the Fushan urban greenbelt systems and that in the air above the greenbelt systems were measured, with their correlations analyzed.

Impacts of rapid development of urbanization on planning of urban green system;

Ecocity-aimed Planning of Urban Green System;

Landscape ecological comprehensive assessment of urban greenland system in Ningde City;

Starting with greenland system and using theories of urban ecology,ecological effect of urban vegetation in Chengdu is analyzed.

Approach a quantitative model of use water resources structure in oasis system;

It is the basis of quantitative research on the capacity of oasis systems to develop the appraising index system.

It is the subordinate characters of oasis system to the regional system of the deserted ba.

Driving mechanism analysis of ecological-economic-social capacity interactions in oasis systems of arid lands;