Green Affordable-housing Evaluation Research Based On Ecological Footprint Method

Affordable housing project is a major livelihood project for the government to improve the living conditions of the people,which is related to the harmonious development of the whole country's economy and society.From 1998 China's first proposed to build affordable housing as affordable housing supply system,after ten years of rapid development in recent years,China's affordable housing is in the historical stage of large-scale construction.With a large number of lowincome housing construction projects,building energy consumption will inevitably increase gradually,affecting the surrounding environment,this will inevitably affect the sustainable development of the society.In this context,the construction of green affordable housing has become the future direction of the development of affordable housing projects,and the post evaluation of such projects is particularly necessary.At present,most of the domestic and foreign evaluation of residential projects are intended to establish a set of scientific,complete operational evaluation system,evaluation of the impact of the project on the surrounding environment.There are some successful achievements like: BREEAM of UK,LEED of USA,CASBEE of Japan and domestic Green Building Evaluation Standards.These evaluation methods mostly adopt qualitative research to weight coefficient based,although the use of related mathematics,statistics and other means to reduce the subjectivity,but a lot of the time this kind of evaluation method of subjectivity still overweight,the evaluation results in the objective will be difficult to convince people.The ecological footprint method belongs to the field of ecological economics,is a new analysis tool rise in the last century in the late 90 s,this method in the industry planning,regional circular economy and many other fields have carried out a lot of practical application in the field of construction,and the ecological footprint law belongs to more innovative than try.The main content of this paper is how to apply the ecological footprint method to the evaluation of indemnificatory housing project.In this paper,the ecological footprint analysis method is introduced to evaluate the green housing project,and the ecological footprint analysis method is elaborated in detail.Complete classification of ecological footprint will have green low-income housing project construction period and operation period as well as the removal stage of the calculation,and the domain of ecological footprint project construction area compared to the carrying capacity,and then establish the evaluation criteria to judge the low-income housing project meets the criteria of green building.In the end,this paper calculates the ecological footprint of Ganzhou city in the whole life cycle with a specific example of green housing.Finally,the results show that there is a certain ecological deficit in the affordable housing project.But compared with other local commercial housing construction projects on the ecological deficit of hundreds of times,this project is a green project.From the point of view of sustainable development of construction projects,on the one hand,the ecological footprint of the whole life cycle of the project should be reduced,especially in the construction phase of the project.On the other hand,we should vigorously develop the circular economy and improve the ecological carrying capacity of the project.This paper through the above research,construct the evaluation system of the ecological footprint method based on the housing project,and its application to the green affordable housing project,hopes to quantify project's impact on the environment in the whole life cycle,for the future evaluation of low-income housing projects green provide a reference.