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Global map provides new insights into land use
Date:11/5/2013

This news release is available in German.

Leipzig. In order to assess the global impacts of land use on the environment and help provide appropriate countermeasures, a group of researchers under the leadership of the Helmholtz Centre for Environmental Research (UFZ) has created a new world map of land use systems. Based on various indicators of land-use intensity, climate, environmental and socio-economic conditions, they identified twelve global patterns called land system archetypes. The scientists from UFZ with colleagues from the Humboldt-University Berlin and University Bonn have recently published their results in the journal Global Environmental Change.

Land use changes come in various forms: maize fields replace meadows and grasslands, tropical forests are cleared for pastures, steppes become cropland. The reasons are complex, the impacts are immense: animal and plant communities change, ecosystem functions disappear, carbon emissions contribute to climate change. Whatever happens regionally has global consequences. In order to better assess these impacts and help provide effective countermeasures, the researchers from UFZ created a world map that identifies twelve global land-use systems, also called archetypes. These include barren lands in the developing world, pastoral systems or extensive cropping systems. Germany, for instance, together with most of the Western Europe, Eastern USA and Western Australia represents the 'intensive cropping system' that covers about 5% of the terrestrial Earth surface. This system is characterised by high density of cropland, high inputs of nitrogen fertilisers, temperate climate, high crop yields, large capital investments in the agricultural sector, low proportion of GDP originating from agriculture and good access to m
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Contact: Tilo Arnhold
presse@ufz.de
49-341-235-1635
Helmholtz Centre for Environmental Research - UFZ
Source:Eurekalert  

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