- To identify spatial variations in the amount of NPP consumption relative to local production in a way that highlight humanity's growing impact on the biosphere.
- The Human Appropriation of Net Primary Productivity (HANPP) as a Percentage of Net Primary Product (NPP) portion of the HANPP Collection represents a map identifying regions in which human consumption of NPP is greatly in excess of production by local ecosystems. Humans appropriate net primary productivity through the consumption of food, paper, wood and fiber, which alters the composition of the atmosphere, levels of biodiversity, energy flows within food webs and the provision of important ecosystem services. Net primary productivity (NPP), the net amount of solar energy converted to plant organic matter through photosynthesis, can be measured in units of elemental carbon and represents the primary food energy source for the world's ecosystems. This data set is distributed by the Columbia University Center for International Earth Science Information Network (CIESIN).
- Recommended Citation:
Imhoff, M.L., L. Bounoua, T. Ricketts, C. Loucks, R. Harriss, and W.T. Lawrence. 2004. HANPP Collection: Human Appropriation of Net Primary Productivity as a Percentage of Net Primary Productivity. Palisades, NY: NASA Socioeconomic Data and Applications Center (SEDAC). http://sedac.ciesin.columbia.edu/data/set/hanpp-percentage-net-primary-productivity. Accessed DAY MONTH YEAR.
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- Original Publication:
- Imhoff, M. L., and L. Bounoua. 2006. Exploring Global Patterns of Net Primary Production Carbon Supply and Demand Using Satellite Observations and Statistical Data. Journal of Geophysical Research 111, D22S12. DOI: 10.1029/2006JD00737.
- Available Formats:
- map, raster