Sentences with phrase «soil warming results»
We found that soil warming results in a four - phase pattern of soil organic matter decay and carbon dioxide fluxes to the atmosphere, with phases of substantial soil carbon loss alternating with phases of no detectable loss.
http://science.sciencemag.org/ Not exact matches
When the researchers simulated a second effect of climate change in addition to warming, namely drought, the results were even the opposite as expected: The soil animals ate less, and also the microorganisms living in the soil showed a decline in respiration — an indication that they also consumed less food.
Our results indicate that it may not be the soil animals, on the contrary: Their role may actually be the opposite of what we expected, at least when warming and drought occur together.»
The results suggest that soil respiration and organic carbon decomposition in the tundra, especially in grassy areas, will increase with warming temperatures and rising soil moisture, resulting in increased carbon dioxide emissions to the atmosphere.
«This study addresses this knowledge gap by showing that warming increased plant biomass, but also redistributes carbon into the soil resulting in no change in soil [carbon] stocks.»
Estimates are that microbial respiration will speed up as the soil warms, resulting in a net flux of CO2 to the atmosphere.
The only argument I've seen along those lines is the one that claims that the vast majority of the CO2 humans are emitting is sequestered in soils, oceans, etc, or used by plants, but that «naturally» warmer temps result in the release of sequestered CO2.
Warmer temperatures at high latitudes are already resulting more frequent Arctic fires, and unprecedented permafrost thaw is leaving large soil carbon pools exposed to smoldering fires for the fist time since ancient times.
Estimates are that microbial respiration will speed up as the soil warms, resulting in a net flux of CO2 to the atmosphere.
The results indicate that next to SWEmax (which strongly controls the annual maximum of soil moisture), the snowmelt rate, the ENSO and PDO indices, and rate of warming subsequent to the date of SWEmax are the most influential predictors of APF magnitude in the FRB and its subbasins.
Warming results in more carbon dioxide release from soil and peat moss — it is some 20 % of the fossil fuel emissions.
As a result, the peaks in California's snow melt and surface runoff are likely to be more pronounced and to occur earlier in the calendar year, increasing the duration of the warm - season low - runoff period and potentially reducing surface soil moisture.
9 Effects of Global Warming Rising Sea Levels Rising Sea Levels Result in Soil Erosion Flooding Loss of Homes Loss of Life
E.g., research assumes greenhouse gas emissions cause warming without explicitly stating humans are the cause»... carbon sequestration in soil is important for mitigating global climate change» (4a) No position Does not address or mention the cause of global warming (4b) Uncertain Expresses position that human's role on recent global warming is uncertain / undefined «While the extent of human - induced global warming is inconclusive...» (5) Implicit rejection Implies humans have had a minimal impact on global warming without saying so explicitly E.g., proposing a natural mechanism is the main cause of global warming»... anywhere from a major portion to all of the warming of the 20th century could plausibly result from natural causes according to these results» (6) Explicit rejection without quantification Explicitly minimizes or rejects that humans are causing global warming»... the global temperature record provides little support for the catastrophic view of the greenhouse effect» (7) Explicit rejection with quantification Explicitly states that humans are causing less than half of global warming «The human contribution to the CO2 content in the atmosphere and the increase in temperature is negligible in comparison with other sources of carbon dioxide emission»»
From the Southwest to the Great Lakes, temperatures have been so high and rainfall so low that the drying effect of warmer air temperatures far exceeded what little precipitation there's been, resulting in moisture being drawn out of soils.
Warming has resulted in a complex pattern of net carbon loss from the soil.
Although the melting of underlying permafrost will release huge amounts of the greenhouse gases blamed for fueling global warming, researchers who sampled three sites in boreal Alberta, Saskatchewan and Manitoba have discovered that the warmer, softer, wetter soil that results also promotes the growth of new mosses that capture and store about as much carbon from the atmosphere as the thawed ground releases.
This result suggests that the reduced precipitation has caused drier soils, which in turn have enhanced the warming owing to reduced cooling by evaporation.
When done so, proxy records and climate models indicate that the response to past global warming was profound, with evidence for global reorganisation of the hydrological cycle and profound local increases and decreases in rainfall; combined with elevated temperatures and terrestrial vegetation change, this appears to often result in warming - enhanced soil organic matter oxidation, chemical weathering and nutrient cycling.
While deforestation has been the focus of most research into forests» effects on climate change, with a recent study suggesting tropical forests are turning into carbon sources rather than carbon stores as a result, the impact of warming soils has remained much of a mystery.