Analysis of urban carbon metabolic processes and a description of sectoral characteristics: A case study of Beijing

摘要: Abstract Global climate change has aroused widespread interest in reducing carbon emissions and increasing sequestration. Thus, an urban inventory must consider both In this context, we analyzed the main contributors to flows that comprise a city's metabolic processes employing methods concepts from ecological science. The sequestration by can be compared catabolism anabolism, respectively. We used empirical coefficients estimate rates of anabolism calculate resulting imbalance index. Our analysis reveals contributions individual actors distribution among them. Taking Beijing as case study, found catabolic rate was more than five times anabolic 1995 2010, leading index twice average Chinese level. major were other services domestic sectors. These primarily influenced electricity, heating energy consumption, mobile consumption. overall resulted greatly reduced farmland due conversion into land. Identifying manner will inform government mitigation efforts identifying where reduction is required guiding planning appropriate actions. study also provides directions for conservation environment.