Transcription of GLOBAL SOIL RESOURCES BASE: DEGRADATION …
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GLOBAL SOIL RESOURCES BASE: DEGRADATION …
C-MASC 04-09 GLOBAL soil RESOURCES BASE: DEGRADATION AND LOSS TO OTHER USESR. LalCarbon Management and Sequestration CenterThe Ohio State UniversityColumbus, OH 43210 USAWORLD POPULATION GROWTHYearPopulation (Billions)Growth Rate (%/y) (Bartlett, 2004)PRODUCTIVITY INCREASE BETWEEN 1900 AND 2000 (PONTING, 2007)ParameterIncrease Factor Between output35 Energy Production300 Water Use9 Irrigated Use342 Fish Catch65 Organic Chemicals1000 Car Ownership7750 EMISSION FROM FOSSIL FUEL COMBUSTIONYearEmissions (Tg C/y)175031800818505418609118802361900534 1920932194012991960253519805155199059311 9956190200062992005700020088000(Kondraty ev et al., 2003; Marland et al., 2001; IPCC, 2007)C-MASC 04-09 HUMANS AND LAND RESOURCESH umans have converted a third of the land area -almost billion hectares -to agriculture and urban or build up areas. Most of the remainder land is unsuitable for TRENDS IN AGRICULTURAL LANDC-MASC 04-09 YearArea (106ha)CroplandGrazing LandPasture17002656860-18505376837-19209 136748-195011176780-19801346678832441990 1396-336820001398-3442(Richards, 1900; FAO, 2008)WORLD IRRIGATED LAND AREA(Brown, 2000; FAO, 2005)YearArea Irrigated (106ha)% ~ 20% of irrigated land is salinizedC-MASC 04-09 THE HABER-BOSCH PROCESS3 CH4+ 6H2O 3 CO2+ 12 H21
C-MASC 04-09 GLOBAL SOIL RESOURCES BASE: DEGRADATION AND LOSS TO OTHER USES R. Lal Carbon Management and Sequestration Center The …
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