Contrast Study On The Urban Forestry Ecological Effection Base Of Citygreen

This research place is selected in the forest farm of the experiment of Forestry University of the Northeast, researchers draw a circle to approve 7 pieces of ground of 7 seeds , amount to 700 trees samples. Utilize ArcView and CITYgreen model, combining picture interpretation remote sensing and investigate of kind of ground , structure the management information system of 7 kinds of ground. At the same time to the growth states of the trees in a kind of ground, store carbon absorbing and relevant economic worth and appraise the current situation to absorbing the situation , carbon of air pollutant, and utilize simulation of the model to predict the function , imitate predicting to the relevant index 10 , 20 , 50 years later.Can work out the following main conclusion: 1, Structure the management information system of 7 kinds of ground , the convenient inquiry , management and upgrading fast to the project in the future . 2, The ecological benefits given play to of the vegetation, the great degree depends on how much its one's own green quantity is. 3, As city afforestation seeds, candy tool and white birch superior to other research seeds obviously in every appraisal of index, in order that the choice of afforesting the seeds has been offered the reliable basis 4, to relevant ecological benefits and economic worth created, work out concrete number value , is it is it is it offer theory and basis of technology to study to take for city forest to ration to determine the nature.