The solar global radiation from 1957 to 2006 was calculated in Fushun region and its seasonal,geographical and inter-annual variation were analyzed.Moreover,relationship between yield and solar energy use efficiency o...The solar global radiation from 1957 to 2006 was calculated in Fushun region and its seasonal,geographical and inter-annual variation were analyzed.Moreover,relationship between yield and solar energy use efficiency of rice,corn and soybean were analyzed concretely.The results showed that Fushun County had the most solar global radiation in Fushun region,while Xinbin County had the least.The solar global radiation in warm season accounted for 72% of the total solar radiation in one year.The maximum solar global radiation occurred in May,while theminimum value in December,with a period of 19 years.In addition,crop yield was proportional to solar energy use efficiency.展开更多
China’s urban expansion,food security,and energy transition are in a critical situation.One solution is to tap into the green production potential of the built urban environment and explore new ways to save land spac...China’s urban expansion,food security,and energy transition are in a critical situation.One solution is to tap into the green production potential of the built urban environment and explore new ways to save land space and alleviate ecological pressure through food and solar energy production.This paper differs from previous ecological compensation studies,which mostly focus on key ecological functional areas or fiscal compensation mechanisms,in that it innovatively establishes an ecological compensation mechanism within the urban space.In this paper,we propose the"green productive area"of cities as a way to measure the ecological carrying capacity improvement potential of cities from the perspective of urban ecology,and it is based on converting the green resource income of cities into the ecological footprint area they could save under the same conditions.First,a typological approach was used to establish a compensation strategy for green production.Second,a spatial inventory was taken of all elements of the built environment and an analysis of their green production potential was carried out.Finally,it was necessary to establish a unified accounting standard for the ecological land saving benefits of different green production options,which could be converted into green productive land area indicators.In the case of Xuefu Street in Nankai District,Tianjin,the available rooftops and idle land were used for green production,which supplemented the ecological carrying capacity provided by the natural land occupied by 12%of the buildings in the district.展开更多
基金Supported by Government of Fushun City (20071209)
文摘The solar global radiation from 1957 to 2006 was calculated in Fushun region and its seasonal,geographical and inter-annual variation were analyzed.Moreover,relationship between yield and solar energy use efficiency of rice,corn and soybean were analyzed concretely.The results showed that Fushun County had the most solar global radiation in Fushun region,while Xinbin County had the least.The solar global radiation in warm season accounted for 72% of the total solar radiation in one year.The maximum solar global radiation occurred in May,while theminimum value in December,with a period of 19 years.In addition,crop yield was proportional to solar energy use efficiency.
基金The National Natural Science Foundation of China(51978443,52078322)The Youth Program of National Natural Science Foundation ofChina(51708395)The Tianjin Graduate Research and Innovation Project in 2009(2019YJSB175).
文摘China’s urban expansion,food security,and energy transition are in a critical situation.One solution is to tap into the green production potential of the built urban environment and explore new ways to save land space and alleviate ecological pressure through food and solar energy production.This paper differs from previous ecological compensation studies,which mostly focus on key ecological functional areas or fiscal compensation mechanisms,in that it innovatively establishes an ecological compensation mechanism within the urban space.In this paper,we propose the"green productive area"of cities as a way to measure the ecological carrying capacity improvement potential of cities from the perspective of urban ecology,and it is based on converting the green resource income of cities into the ecological footprint area they could save under the same conditions.First,a typological approach was used to establish a compensation strategy for green production.Second,a spatial inventory was taken of all elements of the built environment and an analysis of their green production potential was carried out.Finally,it was necessary to establish a unified accounting standard for the ecological land saving benefits of different green production options,which could be converted into green productive land area indicators.In the case of Xuefu Street in Nankai District,Tianjin,the available rooftops and idle land were used for green production,which supplemented the ecological carrying capacity provided by the natural land occupied by 12%of the buildings in the district.
