摘要：Markets influence the global patterns of urbanization, deforestation, agriculture and other
land use systems. Yet market influence is rarely incorporated into spatially explicit global
studies of environmental change, largely because consistent global data are lacking below
the national level. Here we present the first high spatial resolution gridded data depicting
market influence globally. The data jointly represent variations in both market strength
and accessibility based on three market influence indices derived from an index
of accessibility to market locations and national level gross domestic product
(purchasing power parity). These indices show strong correspondence with human
population density while also revealing several distinct and useful relationships with
other global environmental patterns. As market influence grows, the need for
high resolution global data on market influence and its dynamics will become
increasingly important to understanding and forecasting global environmental change.
