USGCRP Home Library Our Changing Planet FY2007   Figure 30

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Updated 15 December 2006

OUR CHANGING PLANET The U.S. Climate Change Science Program for Fiscal Year 2007 A Report by the Climate Change Science Program and The Subcommittee on Global Change Research A Supplement to the President's Fiscal Year 2007 Budget

These products provide spatial distribution patterns of soil organic carbon (SOC) stocks, net primary production (NPP), and SOC change in the northwestern Great Plains (portions of Montana, Nebraska, North Dakota, South Dakota, and Wyoming) between 1972 and 2001: (a,b) the spatial distributions of total SOC stocks in 1972 and 2001, respectively; (c) the annual average NPP between 1972 and 2001; and (d) the change in SOC stocks from 1972 to 2001, with positive values indicating an increase in SOC stocks over this period. Credit: Z. Tan, South Dakota Center for Biocomplexity Studies; S. Liu, SAIC; C.A. Johnston, South Dakota Center for Biocomplexity Studies; T.R. Loveland, U.S. Geological Survey; L.L. Tieszen, U.S. Geological Survey; J. Liu, U.S. Geological Survey; and R. Kurtz, U.S. Geological Survey (reproduced from Global Biogeochemical Cycles with permission from the American Geophysical Union).

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