Mesocosm Experiments Reveal Global Warming Accelerates Macrophytes Litter Decomposition and Alters Decomposition-Related Bacteria Community Structure
نویسندگان
چکیده
Global climate change scenarios predict that lake water temperatures will increase up to 4 °C and extreme weather events, such as heat waves large temperature fluctuations, occur more frequently. Such changes may result in the of aquatic litter decomposition on shifts diversity structure bacteria communities this period. We designed a two-month mesocosm experiment explore how constant (+4 than ambient temperature) variable (randomly +0~8 warming treatment affect submerged macrophyte process. Our data suggests treatments accelerate shallow ecosystems, decomposition-related with community composition changed relative abundance Proteobacteria, especially members Alphaproteobacteria increased while Firmicutes (mainly Bacillus) decreased.
منابع مشابه
Impact of litter quantity on the soil bacteria community during the decomposition of Quercus wutaishanica litter
The forest ecosystem is the main component of terrestrial ecosystems. The global climate and the functions and processes of soil microbes in the ecosystem are all influenced by litter decomposition. The effects of litter decomposition on the abundance of soil microorganisms remain unknown. Here, we analyzed soil bacterial communities during the litter decomposition process in an incubation expe...
متن کاملWarming accelerates decomposition of decades-old carbon in forest soils.
Global climate carbon-cycle models predict acceleration of soil organic carbon losses to the atmosphere with warming, but the size of this feedback is poorly known. The temperature sensitivity of soil carbon decomposition is commonly determined by measuring changes in the rate of carbon dioxide (CO(2)) production under controlled laboratory conditions. We added measurements of carbon isotopes i...
متن کاملLitter quantity and decomposition
The global terrestrial heterotrophic respiration is estimated at about 60 Gt C yr-1 (Schlesinger, 1991). Plant litter produced during senescence processes and plant residues left on site after harvest operations are the primary substrate for heterotrophic respiration in plant-soil ecosystems. They constitute both of aboveground and belowground plant parts. Substrate quality, together with the p...
متن کاملGlobal negative vegetation feedback to climate warming responses of leaf litter decomposition rates in cold biomes.
Whether climate change will turn cold biomes from large long-term carbon sinks into sources is hotly debated because of the great potential for ecosystem-mediated feedbacks to global climate. Critical are the direction, magnitude and generality of climate responses of plant litter decomposition. Here, we present the first quantitative analysis of the major climate-change-related drivers of litt...
متن کاملTemperature oscillation coupled with fungal community shifts can modulate warming effects on litter decomposition.
Diel temperature oscillations are a nearly ubiquitous phenomenon, with amplitudes predicted to change along with mean temperatures under global-warming scenarios. Impact assessments of global warming have largely disregarded diel temperature oscillations, even though key processes in ecosystems, such as decomposition, may be affected. We tested the effect of a 5 degrees C temperature increase w...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Water
سال: 2021
ISSN: ['2073-4441']
DOI: https://doi.org/10.3390/w13141940