Productivity and compensatory responses of yellow-poplar trees in elevated C02

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	Year	Citations
Observational Contrains on the Global Atmospheric Co <sub>2</sub> Budget Pieter P. Tans, Inez Fung, Taro Takahashi Science Transport FieldsOrganic GeochemistryCarbon SequestrationBiogeochemistryEngineering	1990	2.1K
The Response of Natural Ecosystems to the Rising Global CO2 Levels F. A. Bazzaz Annual Review of Ecology and Systematics EngineeringGreenhouse Gas EmissionNatural EcosystemsEarth ScienceCarbon Allocation	1990	1.2K
The global carbon cycle. W. M. Post, Tsung‐Hung Peng, William R. Emanuel, American Scientist Carbon SequestrationGlobal Carbon CycleEngineeringEnvironmental CycleCarbon Cycle	1990	911
Forest Ecosystems, Concepts, and Management Roger Rosentreter, Richard H. Waring, William H. Schlesinger Journal of Range Management ForestryVegetation ManagementNatural Resource ManagementForest Resource ManagementForest Ecosystems	1986	479
Leaf area compensation and nutrient interactions in CO<sub>2</sub>‐enriched seedlings of yellow‐poplar (<i>Liriodendron tulipifera</i> L.) Richard J. Norby, Elizabeth G. O’Neill New Phytologist	1991	160
The Aerial Fertilization Effect of CO<sub>2</sub>and Its Implications for Global Carbon Cycling and Maximum Greenhouse Warming Sherwood B. Idso Bulletin of the American Meteorological Society Carbon SequestrationBiogeochemistryEngineeringGreenhouse EffectAerial Fertilization Effect	1991	43

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