Comparative Study On Nominal Incremental Benefits And Actual Incremental Benefits Of Green Building In China

Green buildings have incremental benefits such as saving resources and improving the ecological environment.However,at this stage,the number of green building projects that have obtained the "design evaluation logo" is relatively large,and the number of green building projects that have obtained the "operation evaluation logo" is too small,which has greatly reduced the incremental benefits that green buildings should have.As a result,the illusion of large-scale incremental benefits of existing green buildings is created.However,existing theoretical studies have not revealed this phenomenon quantitatively,nor have they analyzed the reasons for this phenomenon.Therefore,this article launched the following research work.First of all,on the basis of proposing that the incremental benefits generated by the "design evaluation logo" green building project are nominal incremental benefits,and that the benefits generated by the "operation evaluation logo" green building project are actual incremental benefits.This paper identifies and quantifies nominal incremental benefits and actual incremental benefits of green buildings,followed by the analysis of gap between the actual incremental benefit and the nominal incremental benefit of green buildings form the national level and the provincial level,which using natural break point method and exploratory spatial data analysis method.And the spatial Durbin model and geographic weighted regression model are used to explore the influencing factors of the gap between the actual incremental benefit and the nominal incremental benefit of green buildings.Finally,this paper puts forward the suggestions in terms of closely combining the local natural environment,making full use of modern high-tech,reducing development costs by multiple means,stimulating the demand for green housing,and establishing a regulatory reward mechanism.The conclusions of this paperare as follows:(1)In the analysis of the difference between the nominal incremental benefits and the actual incremental benefits of green buildings,from 2010 to 2015,at the national level,the difference between the nominal incremental benefits and the actual incremental benefits of green buildings shows the fluctuating downward trend,but the difference is still large.At the provincial level,the provinces where the difference between the nominal incremental benefit ratio and the actual incremental benefit ratio of green buildings has narrowed include 17 provinces such as Henan Province and Hebei Province.The provinces that the difference has increased include 7 provinces such as Beijing and Guangdong Province.The provinces that only have the nominal incremental benefits of green buildings include 6 provinces such as Guizhou and Jiangxi Province.The difference between the nominal incremental benefit ratio and the actual incremental benefit ratio of green buildings exhibits significant spatial agglomeration characteristics.(2)In the analysis of the influencing factors of the difference between the nominal incremental benefits and the actual incremental benefits of green buildings,the impact of per capita water supply on the difference decreases from south to north.The impact of green building patents’ number on the difference decreases from southeast to northwest.The average construction cost has a greater impact on the difference between North China and Southeast,and a smaller impact on the difference in Northeast.The impact of residents’ consumption level on the difference decreases from east to west.And the impact of government energy conservation and environmental protection expenditures on the difference decreases from south to north.