Study On Afforestation System Of The Green Construction

People regarded the increase of GDP as only goal of building up the economic powerful country since 18th century. And this caused environment and resources of the earth to be destroyed. The mankind have to scrutinize their life style. The green construction is attention by people, in this background. It is the application of the "Sustainable development" in architecture. The green construction is being attemptted and implemented in many place of the word. There are successful applications in some big city of China, such as Beijing, Shanghai, Chongqing and so on. But the research about influence of afforestation to the green construction is not enough. And there are not special research to the afforestation of green construction yet. This obviously cannot satisfy with the demand of afforestation development of green construction in China, at present. A ecology demonstration building and afforestation had been built up at Shanghai in 2004. So we take Shanghai as an example to study the afforestation system of the green construction.From the paper we draw some conclusion as follows:(1) Different flora of outdoors afforestation have different effect to the green construction. The plant community have more ecology benefit which structure is more complex. We should choose the corresponding community in the different function request.(2) The room afforestation can make CO₂ density of room reduce by 8.1% and the room dust PM10 reduce by 61.6%, equally, but temperature decrease and humidity increase ability are not remarkable. Room should be fully utilize to afforestation.(3) Roof afforestation can equally make the outer surface of roof reduce by 24.6℃and the interior surface reduces by 5.4℃in summer, and can make roof internal and external surface rise about 3℃in winter. And it can also equally make roof outer surface air humidity raise by 12.5%. It is favorable to the energy-conserving of construction and the set up of the healthy and comfortable environment(4) The construction vertical greening can obviously improve the microclimate around the construction wall, and can reduce the construction indoor temperature effectively in the afternoon, but not prominent in the morning.(5) A appraisal system of green construction afforestation is set up which can evaluate the afforestation system of construction.(6) Weight coefficient of appraisal system is obtained. Ecology function and the landscape function weight coefficient are consistent, It indicates that people have the same attitude toward plant ecology benefit and plant landscape benefit. (7) We use appraisal system to evaluate the afforestation system of Shanghai ecology demonstration office building and Ganquan updown. It indicates that the demonstration office afforestation system belongs to the high-grade and Ganquan updown afforestation system belongs to the generic-grade afforestation system.(8) We recommend a lot of plant which suit to green construction afforestation in Shanghai and some plant community of outdoors afforestation.The building afforestation is conform with theme of the green construction. So we should utilize space of building to afforestation fully. Different plant and community should be chose basis on the different demand. Appraisal system can be used to judge the quality of afforestation and put the improvable suggestion.