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您的检索式：作者名="O. HEINEMEYER"
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| 1 | Carbon Turnover in a Crop Rotation Under Free Air CO_2 Enrichment (FACE)显示文摘. Mostly based on assumptions derived from controlled-environment studies, predicted future atmospheric CO2 concen- trations [CO2] are expected to have considerable impacts on carbon (C) turnover in agro-ecosystems. In order to allow the in situ examination of C-transformations in the plant-soil system of arable crop rotations under future [CO2], a free air carbon dioxide enrichment (FACE) experiment (550 μmol mol-1 CO2) was started at Braunschweig, Germany in 1999. The crop rotation under investigation comprised winter barley, a cover crop (ryegrass), sugar beets and winter wheat. Assessments of CO2 effects included the determination of above- and belowground biomass production, measurements of canopy CO2- and H2O- fluxes, soil microbial biomass and in situ soil respiration. The results obtained during the 1st crop rotation cycle (3 years) showed that for the selected crops elevated [CO2] entailed significant positive effects (P < 0.05) on aboveground (6%-14% stimulation) and belowground biomass production (up to 90% stimulation), while canopy evapotranspiration was reduced. This resulted in increased soil water content. Also, depending on crop type and season, high CO2 stimulated in situ soil respiration (up to 30%), while soil microbial biomass did not show significant responses to elevated [CO2] during the first rotation cycle. | H. J. WEIGEL A. PACHOLSKI S. BURKART M. HELAL O. HEINEMEYER B. KLEIKAMP R. MANDERSCHEID C. FRüHAUF G. F. HENDREY K. LEWIN J. NAGY | 2005 | Pedosphere2005，15，6： | 12 |
| 2 | Global estimates of potential mitigation of greenhouse gas emissions by agriculture显示文摘 | C.V. Cole J. Duxbury J. Freney O. Heinemeyer K. Minami A. Mosier K. Paustian N. Rosenberg N. Sampson D. Sauerbeck Q. Zhao | 1997 | Nutrient Cycling in Agroecosystems (-)1997，，1： | 1 |
| 3 | Global estimates of potential mitigation of greenhouse gas emissions by agriculture显示文摘 | C.V. Cole J. Duxbury J. Freney O. Heinemeyer K. Minami A. Mosier K. Paustian N. Rosenberg N. Sampson D. Sauerbeck Q. Zhao | 1997 | Nutrient Cycling in Agroecosystems1997，，1： | 1 |
| 4 | Assessing and Mitigating N2O Emissions from Agricultural Soils显示文摘 | A.R. Mosier J.M. Duxbury J.R. Freney O. Heinemeyer K. Minami | 1998 | Climatic Change1998，，1： | 1 |
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