Land as a resource
Alexa K. Lutzenberger, Franziska Lichter
ALRENE Enigineering office, Germany
The Intress project developed and discussed science-based suggestions for international targets onsustainable resource use.
This paper presents the further development of the general framework, which was devoted to the assessment of the perspectives that can be taken when approaching the issue of land targets. In our approach to structure the different arguments on the derivation of targets on global land prominent in the scientific discussion, we distinguished several key perspectives of sustainable land management. In this paper, these perspectives has been resumed and enhanced where necessary.
In our opinion it’s vital to include all biomes on a global scale. In the light of the decreasing biodiversity intactness and the ongoing loss of species per year, there is no other option than 100% protection of all 14 terrestrial ecoregion biomes from now on. Difficulties for target setting can be identified by
incorporating direct and indirect land use in the discussion as well as the temporal dimensions. It is difficile to set boundaries, if land system changes are not clearly attributable to certain indicators and control variables and temporal dimension are working slowly. On the other hand, positively correlated effects of targets set within this framework might be not visible until 2050, because it needs inter alia decades to regrowth forests and millennia for ecosystems to recover and provide full services. Addressing the cross-scale cause-effect relationship of land cover and land use, a global spatial
planning approach seems unavoidable. Therefore, zoning, land management and spatial planning had been presented in the report. It is important that the global objectives are transferable into national policies and raise awareness from the national action to the global scale.