H2020Индивидуална стипендия2019–2021

MIFLUKE · Microbial fluxes of greenhouse gases (CO2 and CH4) in karst ecosystems: comprehensive assessment and biogeochemical modelling

„Хоризонт 2020“ — Действия „Мария Склодовска-Кюри“

Период: 2019-09-01 → 2021-08-31
Финансиране от ЕС: 178 320 €
Участници: 1
Схема: MSCA-IF

Линиите свързват координатора с партньорите.

Накратко на български

Микробите в карстовите екосистеми определят количеството на парниковите газове, като например поглъщат метан от пещерния въздух. Това помага за по-точното разбиране на глобалния въглероден цикъл и влиянието му върху климата.

Този кратък обзор е генериран от изкуствен интелект

Кратко обяснение, генерирано от езиков модел по текста на CORDIS. Оригиналът е по-долу.

Резултати накратко

Microbial fluxes of greenhouse gases (CO2 and CH4) in karst ecosystems: comprehensive assessment and biogeochemical modelling

The assessment of carbon cycle in the Earth-climate system is one the highest challenge in science nowadays. It still remains some key knowledge gaps and uncertainties concerning the budgets of greenhouse gases (GHGs) at ecosystem scale. Karst ecosystems cover up to 25 % of the land surface and they are acting as rapid CH4 sink and as alternately CO2 source or sink. Microbial action could be playing a crucial role on it, but there are many knowledge gaps. Previous studies in subterranean environments had shown that some of microbial communities (mostly Actinobacteria) are active agents in the fixation of CO2, and that oxidizing bacteria (MOBs) seems to be the main responsible for in-situ removal of CH4 from cave air, but this had been inferred mainly by indirect methods. MIFLUKE overall research aim is to elucidate the role of karst microbiota in the main GHGs -CO2 and CH4- content and fluxes in underground atmospheres, as a key challenge to clarify the accurate effective contribution of karst ecosystems to global carbon cycle (global balances) and help to resolve uncertainties in climate feedback dynamics. We apply an innovative and highly interdisciplinary combination of a broad suite of cutting-edge technologies -GHG flux monitoring, isotopic geochemical tracing, biogeochemistry, metagenomics, etc.—to quantify the GHG fluxes controlled by microbial-induced processes and directly exchanged with the cave atmosphere in several temporal scales (daily, seasonal, annual pattern). After thirteen months of research, and with the analyses still in progress, the results absolutely reveal that cave microbiota is acting as net up taker of CH4 and as an emitter / sink of CO2 alternately. Their uptake and emissions rates appear to be meaningfully high. It quantitatively confirms that cave microbiota is playing an outstanding role in the processes of production and consumption of CO2 and CH4, that is determining the strong variations of these major GHGs in natural subterranean ecosystems. This research line is crucial to achieve a more accurate assessment of the effective contribution of karst ecosystems to the global carbon cycle.

Текст от CORDIS, на английски · Данни: CORDIS, © Европейски съюз

Цел на проекта

The assessment of carbon cycle in the Earth-climate system is one the highest challenge in science nowadays. It still remains some key knowledge gaps and uncertainties concerning the budgets of greenhouse gases (GHGs) at ecosystem scale and the key role of microbial communities. Karst ecosystems cover up to 25 % of the land surface and they are acting as rapid CH4 sink and as alternately CO2 source or sink. Pioneer results point to microbial action must be playing a crucial role in CO2 and CH4 uptake, fixation or production and maybe determining the strong variations of these major GHGs in karst ecosystems.MIFLUKE will elucidate, for the first time, the role of karst microbiota in the main GHGs -CO2 and CH4- content and fluxes in underground vadose atmospheres, as a key challenge to clarify the accurate effective contribution of karst ecosystems to the global carbon cycle. By applying an innovative and multidisciplinary combination of a broad suite of advanced tools and cutting-edge technologies from very different research areas -GHGs flux monitoring, isotopic geochemical tracing, biogeochemistry, metagenomics, etc.- a biogeochemical model of microbial processes will be developed. This project will combine the expertise of a multidisciplinary group of leading researchers on ecosystem functioning, GHGs and biogeochemistry modelling, with the extraordinary resources including analytical facilities and training support in PLECO (Univ. Antwerp, Belgium).The proposal represents an exceptional opportunity the candidate to acquire the essential skills that will open new career avenues and will convert her into a highly competitive European researcher. In turn, the fellow will bring specific expertise to PLECO that will open a new and promising research field.This proposal directly addresses the cross-cutting priority of climate action established by H2020 Work Programme and will reinforce the already large European competitiveness in GHGs research and management.

Оригинален текст от CORDIS (на английски).

Участници

UNIVERSITEIT ANTWERPEN · AntwerpenКоординаторБелгия