What is land system change?
Land system change, that is, the spatial and temporal changes in the interplay of social and ecological systems in shaping land use and land cover, is central to food security assessments.
What is planetary boundary framework?
The planetary boundaries framework defines a safe operating space for humanity based on the intrinsic biophysical processes that regulate the stability of the Earth system.
What has driven land system change?
Land system changes are the direct result of human decision making at multiple scales ranging from local land owners decisions to national scale land use planning and global trade agreements.
Why was there a need to change the system of land?
The aggregate impact of many local land system changes has far reaching consequences for the Earth System, that feedback on ecosystem services, human well-being and decision making. [2] As a consequence, land system change is both a cause and consequence of socio-ecological processes.
What are the 9 boundaries?
The nine planetary boundaries, counterclockwise from top: climate change, biosphere integrity (functional and genetic), land-system change, freshwater use, biogeochemical flows (nitrogen and phosphorus), ocean acidification, atmospheric aerosol pollution, stratospheric ozone depletion, and release of novel chemicals ( …
How many planetary boundaries have been crossed 2021?
The Earth has nine Planetary Boundaries that determine the threshold beyond which human impact on Earth’s systems will put society at risk. We’ve already crossed four of these boundaries. Over the past year, Mongabay’s series on planetary boundaries has focused attention on the implications of crossing them.
What is the most important planetary boundary?
Biosphere Integrity: The functional integrity of ecosystems is a core planetary boundary because of the many ecoservices they provide, from pollination to clean air and water.
What are the four 4 planetary boundaries and the other three 3 Named boundaries?
The four are: climate change, loss of biosphere integrity, land-system change, altered biogeochemical cycles (phosphorus and nitrogen). Two of these, climate change and biosphere integrity, are what the scientists call “core boundaries”.