摘要：China’s urban expansion,food security,and energy transition are in a critical *** solution is to tap into the green production potential of the built urban environment and explore new ways to save land space and alleviate eco.ogical pressure through food and solar energy *** paper differs from previous eco.ogical co.pensation studies,which mostly focus on key eco.ogical functional areas or fiscal co.pensation mechanisms,in that it innovatively establishes an eco.ogical co.pensation mechanism within the urban *** this paper,we propose the"green productive area"of cities as a way to measure the eco.ogical carrying capacity improvement potential of cities from the perspective of urban eco.ogy,and it is based on co.verting the green resource inco.e of cities into the eco.ogical footprint area they co.ld save under the same ***,a typological approach was used to establish a co.pensation strategy for green ***,a spatial inventory was taken of all elements of the built environment and an analysis of their green production potential was carried ***,it was necessary to establish a unified acco.nting standard for the eco.ogical land saving benefits of different green production options,which co.ld be co.verted into green productive land area *** the case of Xuefu Street in Nankai District,tianjin,the available rooftops and idle land were used for green production,which supplemented the eco.ogical carrying capacity provided by the natural land occupied by 12%of the buildings in the district.