Preliminary evaluation of air temperature reduction of urban green spaces in Beijing Patterns of urban circular agriculture based on agricultural industries — A case study of Fangshan District of Beijing City The carbon footprint of food consumption in Beijing Syndromic city illnesses diagnosis and urban ecosystem health assessment The changes of gross assets in Beijing urban ecosystem and their ecological relations to city development Ecological land use in three towns of eastern Beijing: A case study based on landscape security pattern analysis. The ecological location correction of ecosystem service value: a case study of Beijing City Effect of agricultural land management right transfer on regional landscape: a case in Changping district, Beijing