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Carbon-Nitrogen-Sulfur: Human Interference in Grand Biospheric Cycles
No preview available - 2012
0ECD acid deposition acid rain acidification aerosols agroecosystems alkaline ammonia animal annual anthropogenic applications areas atmospheric C02 average biogenic biomass biosphere burning C02 concentrations C02 levels calculations carbon changes climatic coal combustion complex consumption cost crop residues cycle decades decline denitrification ecosystems effects efficiency energy environmental estimates farming field fixation flux fly ash forest fossil fuels gases global higher increase industrial inputs kg N/ha leaching legumes less long-term losses lower major Mauna Loa measurements million models nitrate nitrogen cycle nitrogen fixation nitrogen oxides nitrogenous fertilizers North northern nutrient ocean organic owing particles phytomass power plants ppbv precipitation production rain range rates recycling reduced regions relatively releases removal result S02 emissions Section soil sources species studies sulfate sulfur compounds sulfur cycle sulfur dioxide surface t/year temperature tion tropical uncertainties United values vegetation warming yield