Based on the theory of life cycle assessment(LCA),this article analyzes the influence factors on carbon emissions from residential buildings.In the article,the life cycle of residential buildings has been divided into...Based on the theory of life cycle assessment(LCA),this article analyzes the influence factors on carbon emissions from residential buildings.In the article,the life cycle of residential buildings has been divided into five stages:building materials production period,construction period,operation and maintenance period,demolition period,and solid waste recycle and disposal period.Based on this definition,the authors provide a theoretical model to calculate carbon emissions of residential building life cycle.In particular,the factor of human activities was introduced in the calculation of carbon emissions from the buildings.Furthermore,the authors put forward a model for calculation with the unit of carbon emissions for per-capita living space.展开更多
This work aims at studying different green spaces’experiences in developed countries and extrapolates the experiences to Oromia cities in Ethiopia;in order to investigate and promote greenery infrastructure in select...This work aims at studying different green spaces’experiences in developed countries and extrapolates the experiences to Oromia cities in Ethiopia;in order to investigate and promote greenery infrastructure in selected cities.To do that greenery practice performance data were collected in four cities,which were classified into two groups as good and weak performers.As a result,Adama and Bishoftu cities were good urban greenery performers whereas Burayu and Sebeta were weak performers.The cities were also selected non-randomly to investigate the current urban greenery practice and different green areas in each city.Eight green areas were taken as samples for observation,where qualitative and quantitative data were collected from primary and secondary sources.The assessment of data confirmed that green areas along the roadside,recreational parks,open areas,and nursery sites existed in most cities.The urban plan of some cities does exclude most green area components.Greenery sites in Bishoftu and Adama are relatively better,while in Burayu and Sebeta urban greenery are highly abused for changing to another type of land use,e.g.,residential and institutional areas.The technical skills of tree planting,care,protection,and management were also observed as a collective resource.展开更多
基金supported by the "Twelfth Five-year" National Science and Technology Support Project" Research on Typical Building Information Model and Construction Carbon Emission List Index System In Jinniu District,Chengdu"[grant number 2011 BAJ07B02-4]Sichuan Science and Technology Support Project "Application and Demonstration of Low Carbon Technology Integration in the Sustainable Development Communities,Sichuan Province"[grant number:2015SZ0203]SichuanSoft Science Project "Study on Innovation Leads the Development of High-tech and Strategic Emerging Industries in Sichuan province"[grant number:2015ZR0041]
文摘Based on the theory of life cycle assessment(LCA),this article analyzes the influence factors on carbon emissions from residential buildings.In the article,the life cycle of residential buildings has been divided into five stages:building materials production period,construction period,operation and maintenance period,demolition period,and solid waste recycle and disposal period.Based on this definition,the authors provide a theoretical model to calculate carbon emissions of residential building life cycle.In particular,the factor of human activities was introduced in the calculation of carbon emissions from the buildings.Furthermore,the authors put forward a model for calculation with the unit of carbon emissions for per-capita living space.
文摘This work aims at studying different green spaces’experiences in developed countries and extrapolates the experiences to Oromia cities in Ethiopia;in order to investigate and promote greenery infrastructure in selected cities.To do that greenery practice performance data were collected in four cities,which were classified into two groups as good and weak performers.As a result,Adama and Bishoftu cities were good urban greenery performers whereas Burayu and Sebeta were weak performers.The cities were also selected non-randomly to investigate the current urban greenery practice and different green areas in each city.Eight green areas were taken as samples for observation,where qualitative and quantitative data were collected from primary and secondary sources.The assessment of data confirmed that green areas along the roadside,recreational parks,open areas,and nursery sites existed in most cities.The urban plan of some cities does exclude most green area components.Greenery sites in Bishoftu and Adama are relatively better,while in Burayu and Sebeta urban greenery are highly abused for changing to another type of land use,e.g.,residential and institutional areas.The technical skills of tree planting,care,protection,and management were also observed as a collective resource.
