NATURE VOL 396 17 DECEMBER 1998 www nature

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NATURE |VOL 396 | 17 DECEMBER 1998 |www. nature. com

NATURE |VOL 396 | 17 DECEMBER 1998 |www. nature. com

LBA Data from Tapajos Forest Km 67 Eddy Flux Tower Research Site http: //beija-flor.

LBA Data from Tapajos Forest Km 67 Eddy Flux Tower Research Site http: //beija-flor. ornl. gov/lba Eddy covariance method

NATURE|VOL 396 | 17 DECEMBER 1998 |www. nature. com

NATURE|VOL 396 | 17 DECEMBER 1998 |www. nature. com

a, Relations of annual net primary production (NPP, thick line, circles) and annual heterotrophic

a, Relations of annual net primary production (NPP, thick line, circles) and annual heterotrophic respiration (RH, thin line, triangles) to annual mean temperature in the combined simulation of transient climate and transient atmospheric CO 2. b, Relations of annual net primary production (NPP) and annual heterotrophic respiration (RH) to annual precipitation in the combined simulation of transient climate and transient atmospheric CO 2. Annual NPP is negatively correlated with annual mean temperature, and positively correlated with annual precipitation. Annual RH is positively correlated with temperature, but not significantly correlated with precipitation.

В среднем одна корова производит 250 л метана в сутки http: //pelukpohon. blogspot. com/2010/05/from-waste-to-food-and-clean.

В среднем одна корова производит 250 л метана в сутки http: //pelukpohon. blogspot. com/2010/05/from-waste-to-food-and-clean. html

Nature 439, 187 -191 (12 January 2006) | Methane emissions from terrestrial plants under

Nature 439, 187 -191 (12 January 2006) | Methane emissions from terrestrial plants under aerobic conditions Frank Keppler, John T. G. Hamilton, Marc Brass and Thomas Röckmann Наземные растения выделяют в год от 62 до 236 млн тонн метана

Thomas Roeckmann, atmosphere scientist, Institute for Marine and Atmospheric Research, Utrecht, The Netherlands Frank

Thomas Roeckmann, atmosphere scientist, Institute for Marine and Atmospheric Research, Utrecht, The Netherlands Frank Keppler, atmosphere scientist, Institut fuer Kernphysik, Heidelberg, Germany

"This finding was shocking, " recalls Euan Nisbet of Royal Holloway, University of London,

"This finding was shocking, " recalls Euan Nisbet of Royal Holloway, University of London, in Egham, U. K. If true, both plant biochemistry and global methane budget would need a major reexamination. It could also mean that the human contribution to global warming is less than previously thought. Nisbet's team set about to investigate Keppler's findings by growing the same plants, including celery (Apium graveolens) (сельдерей) and a type of rice (Oryza sativa), in the absence of external sources of the greenhouse gas. The group found no trace of methane, suggesting that the plants alone cannot make the gas. In a separate experiment, the team placed the plants in water containing dissolved methane. Sure enough, the roots drew up the methane-soaked water and the leaves then pushed out the gas and water vapor--a process known as transpiration. The researchers also tried to find a chemical pathway by which the plants could make methane aerobically. They came up empty: None of the plants' genes codes for enzymes similar to those made in methane-producing microbes. "This showed that the plants were not guilty, " says co-author Christopher Howe of the University of Cambridge in the U. K. The findings are published online today in the Proceedings of the Royal Society B.

It has been proposed that plants are capable of producing methane by a novel

It has been proposed that plants are capable of producing methane by a novel and unidentified biochemical pathway. Emission of methane with an apparently biological origin was recorded from both whole plants and detached leaves. This was the first report of methanogenesis in an aerobic setting, and was estimated to account for 10– 45 per cent of the global methane source. Here, we show that plants do not contain a known biochemical pathway to synthesize methane. However, under high UV stress conditions, there may be spontaneous breakdown of plant material, which releases methane. In addition, plants take up and transpire water containing dissolved methane, leading to the observation that methane is released. Together with a new analysis of global methane levels from satellite retrievals, we conclude that plants are not a major source of the global methane production.

Москва 7 августа 2010 г. Фото: Viacheslav Lopatin / IP с сайта: http: //fototelegraf.

Москва 7 августа 2010 г. Фото: Viacheslav Lopatin / IP с сайта: http: //fototelegraf. ru/? p=12532

: http: //earthobservatory. nasa. gov/IOTD/view. php? id=45069

: http: //earthobservatory. nasa. gov/IOTD/view. php? id=45069

David Barriopedro, et al. // Science. 2011. V. 332. P. 220– 224

David Barriopedro, et al. // Science. 2011. V. 332. P. 220– 224

С 1990 по 2005 г. средняя температура на Земле возросла на 0, 33°C Stefan

С 1990 по 2005 г. средняя температура на Земле возросла на 0, 33°C Stefan Rahmstorf et al. , Recent Climate Observations Compared to Projections // Science. 2007. V. 316. P. 709.

Tragedy of the commons Hardin G. "The Tragedy of the Commons". Science. 1968. V.

Tragedy of the commons Hardin G. "The Tragedy of the Commons". Science. 1968. V. 162, pp. 1243– 1248.

Jeff Tollefson Nature Vol 466|1 July 2010

Jeff Tollefson Nature Vol 466|1 July 2010

Зависимость уровня океана от температуры в геологическом масштабе времени David Archer & Victor Brovkin

Зависимость уровня океана от температуры в геологическом масштабе времени David Archer & Victor Brovkin The millennial atmospheric lifetime of anthropogenic CO 2 //Climate Change. 2008. 90: 283 -297