Characteristics of Carbon Metabolism of Production-living-ecological Space in Wuhan City of Hubei Province,China Based on Ecological Network Analysis Model
Analyzing the carbon metabolism mechanism of production-living-ecological space through simulating biological metabolism can help to achieve the integration of regional elements and structural optimization,which is one of the effective ways to seek for the green and low-carbon development of cities.Taking Wuhan city,Hubei province as an example,a horizontal carbon flow model was constructed to analyze the flow direction of carbon elements from 2005 to 2020;and ecological network analysis(ENA)model was used to analyze the carbon metabolism of production-living-ecological space,and assess the ecological relationship between different land uses;finally,the comprehensive effect of the evolution of production-living-ecological space on urban carbon metabolism was judged by using the mutualism index.The results show that① from 2005 to 2020,Wuhan city is dominated by negative carbon flows,which peaks in 2010-2015,and the study area shows a disorganized carbon metabolism from 2005 to 2015;from 2015 to 2020,the effect of carbon emission reduction is significant,the positive and negative carbon flows are weaker,and distribute sporadically in space,and carbon metabolism is gradually balanced at the later stage;② ecological relationships in Wuhan city are dominated by predation-restriction,ecological space is crowded by living space and production space,ecological conflicts between different land uses are more intense,and ecological relationships improve significantly after 2015 when the area without ecological relationships increase;③ the mutualism index shows a trend of decreasing and then increasing,but the average value of mutualism index is 0.77(<1),which indicates that the evolution of the production-living-ecological space still has a negative effect on the balance of urban carbon metabolism,and there are still irrationalities in spatial utilization of Wuhan's land and the pressure on carbon metabolism,which calls for the optimization of land and spatial layout,and the promotion of green and low-carbon development.
production spaceliving spaceecological spacecarbon metabolismENA modelecological relationshipspatial distributionWuhan
NETL
NSTL
万方数据
