Study demonstrated increased warming due to carbon emissions plants
A scientist from the UK and Australia Cooperation Carried out by the latest research shows that higher temperatures are likely to mean that plant will release more carbon dioxide.
All plants will exhale carbon dioxide in the breathing, the process of carbon dioxide released each year is estimated to reach 60 billion tons. So far, climate model projections indicate that high temperatures will cause plant emissions increased dramatically.
Researchers had thought the truth may be more complicated, because the plant will be through the respiratory rate of growth to slow to adapt to the new environment. But the study confirmed this speculation is not correct.
Scientists will put 19 plants under conditions of different cultivation temperatures, monitoring their respiratory rate, and then calculated to measure leaf temperature and two commonly used indicators of quality?? Unit area of leaf quality and leaf nitrogen content? ? relationship.
Use of results, the scientists of the temperature increase to the entire ecosystem respiration impact is predicted. They found that the capacity of terrestrial plants to absorb carbon may indeed weakened with increasing temperature.
This is the first to plant respiration response to temperature change, that the ability of plants to adapt to the environment carried out to measure, scientists also thereby establishing a precise picture of the inter-species to be used for more extensive climate models.
Institute climate model used by the British Hadley Centre for Climate Prediction and Research, Development, and its default settings do not include the ability to adapt to the environment. Model assumes, as the climate is becoming increasingly hot, the Earth would quickly surge in carbon dioxide emissions.
"Have a common expectation is that ability to adapt to environmental considerations into the context of climate models should be able to reduce plant respiration with the rate of temperature increase and speed up." Climate model of the University of Sheffield, UK experts Luosifeixi Seoul (RosieFisher) said, "In fact, we found that it had little impact in predicting the outcome."
This in the "Global Change Biology" magazine published research indicates that in some areas, such as tropical rain forests, carbon emissions may increase as the temperature decreased, but on a global scale, its resulting negligible role, in part because 40% of total global forest area of the cold climate zone of forest carbon storage capacity would be reduced.
Paper one of the authors, University of York Biology mathematician Qiaoenpiqi Ford (JonPitchford) said: "These findings challenge the concept that plant life on Earth will adapt to a unified manner liter high temperature, while this in turn will help ease global warming. "he added.
Apart respiration, plants will absorb carbon dioxide through photosynthesis and release oxygen. "This study gives us the warning is that we only took into account only the carbon economy of plants side of the equation, which is respiration. On how to adjust to temperature changes in photosynthesis, but did not reach a clear consensus. This is a more complex problem that requires for more experimental research. "Fisher said.
She added that the University of Leeds, his colleagues are currently studying this issue, when appropriate, researchers should be able to be adaptable to temperature change of photosynthesis integrated into climate models to.
Another area that needs more investigation, lost the equivalent of a big area of Amazon rain forest will be affected. Most climate models predict that climate change will lead to reduction in forest area, which is no planning and development, and timber land for crops and livestock increased demand may result. The huge response to cover up the adaptation of plants to the environment in the climate models are relatively subtle effects.
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