Analysis of Biodiversity Footprints Under Land Use and Carbon Emissions in Eight Major Regions of China
Biodiversity is rapidly declining since the Anthropocene,land use and climate change led by carbon emission have threaten biodiversity a lot.The consumption-driven biodiversity loss called biodiversity footprint can help to clarify the subnational conservation responsibilities.This study first defined the concept of regional biodiversity footprint and then proposed a framework to account.A hybrid regional biodiversity footprints analysis model was constructed based on the LCIA and EE-MRIO methods after establishing the inventory of biodiversity losses due to land use and carbon emissions at China's provincial level.The biodiversity footprints of the eight major regions in China were quantified,and then the footprint flow pattern at the subnational level was traced.The research found that in China,the biodiversity footprint of 2017 under land use was 11.73 times higher than that under carbon emissions,footprint results under the two environmental pressures showed significant inconsistencies in the aspect of spatial distribution,composition,and flows.For example,54.15%of the footprints caused by land use were concentrated in Northwest and Southwest China,while 46.58%of the footprints caused by carbon emission were concentrated in the northern coast,the middle reaches of the Yellow River and Southwest China.However,we also found that under the two environmental pressures,domestic footprints occupied more than 97%of the total footprints,net footprint outflows were concentrated in the Southwest,and key footprint sectors included manufacturing and services,revealing common footprint hotspots.This study calculated and clarified the regional scale and flow pattern of China's biodiversity footprints from the consumption perspective,showing that domestic consumption hotspots drive biodiversity loss on the consumption side.It can provide a new perspective and new ideas for China's biodiversity conservation by guiding consumption-side management practices and effective cross-regional cooperation.
land usecarbon emissionconsumption perspectivebiodiversity footprintsub-national analysis
NETL
NSTL
万方数据
