A5045378059- Peatlands and Wetlands Ecology
- Geology and Paleoclimatology Research
- Coastal wetland ecosystem dynamics
- Botany and Plant Ecology Studies
- Climate change and permafrost
- Soil and Water Nutrient Dynamics
- Hydrology and Watershed Management Studies
- Integrated Water Resources Management
- Atmospheric chemistry and aerosols
- Geological Studies and Exploration
- Plant responses to elevated CO2
- Ecology and biodiversity studies
- Atmospheric and Environmental Gas Dynamics
- Flood Risk Assessment and Management
- Bryophyte Studies and Records
- Forest ecology and management
- Ecosystem dynamics and resilience
- Soil erosion and sediment transport
- Historical and Archaeological Studies
- Groundwater and Isotope Geochemistry
- Vehicle emissions and performance
- Aeolian processes and effects
- Environmental Policies and Emissions
- Water Quality and Pollution Assessment
- Groundwater flow and contamination studies
Utrecht University
1993-2021
Yugra State University
2008
CO2 and CH4 fluxes were measured from three small wetland lakes located in the middle taiga forest tundra zones onWest Siberian Lowlands (WSL), world's largest area. Fluxes during summer 2005 using floating chambers validated against thin boundary layer model based on relationship between gas exchange wind speed. All studied supersaturated with CH4, acted a seasonal basis as sources of these greenhouse gases to atmosphere. Daily mean ranged near zero 3.1 g m-2 d-1 corresponding 1.1 120 mg...
Abstract Peatlands are poorly represented in global Earth system modeling frameworks. Here we add a peatland‐specific land surface hydrology module (PEAT‐CLSM) to the Catchment Land Surface Model (CLSM) of NASA Goddard Observing System (GEOS) framework. The amended TOPMODEL approach original CLSM that uses topography characteristics model catchment processes is discarded, and concept realized its place. To facilitate utilization operational GEOS efforts, PEAT‐CLSM basic structure same input...
Regular spatial patterns of sharply bounded ridges and hollows are frequently observed in peatlands ask for an explanation terms underlying structuring processes. Simulation models suggest that regularity peatland could be driven by evapotranspiration-induced scale-dependent feedback (locally positive, longer-range negative) between ridge vegetation nutrient availability. The sharp boundaries induced a positive net rate peat formation acrotelm thickness. Theory also predicts how feedbacks...
Abstract Question: Why do similar fen meadow communities occur in different landscapes? How does the hydrological system sustain base‐rich mires and meadows? Location: Interdunal wetlands heathland pools The Netherlands, percolation Germany, Poland, Siberia, calcareous spring fens High Tatra, Slovakia. Methods: This review presents an overview of conditions meadows that are highly valued nature conservation due to their high biodiversity occurrence many Red List species. Fen types covered...
Although recent studies have recognized peatlands as a sink for atmospheric CO 2 , little is known about the role of Siberian in global carbon cycle. We estimated Holocene peat and accumulation rate southern taiga subtaiga zones western Siberia. explain rates by calculating average long-term apparent (LORCA) using model Clymo (1984, Philosophical Transactions Royal Society London Series B 303, 605–654). At three key areas we studied eight sites, at which dry bulk density, ash content,...
Extensive afforestation since the mid-19th century has contributed to desiccation of former wetland and mire ecosystems in Europe. Restoration wet conditions is expected from transformation evergreen coniferous forest characterized by high interception transpiration deciduous low vegetation. The quantification spatial effects such on groundwater levels difficult because evapotranspiration usually calculated atmospheric parameters only, while plants trees partly determined available soil...
Relations between vegetation characteristics and eco-hydrological processes were assessed in a pristine mire the valley of Ob River (Western Siberia). Along transect from terrace scarp to river, field data collected on composition, peat stratigraphy, chemistry, hydrology hydrochemistry. Based floristic eight communities distinguished. Hydraulic head measurements used obtain an indication groundwater flow directions. The water balance was calculated with two-dimensional steady-state numerical...
The peatlands of the West Siberian Lowlands, comprising largest pristine peatland area world, have not previously been covered by continuous measurement and monitoring programs. response to climate change occurs over several decades. This paper summarizes results carbon balance studies collected ten years at Mukhrino field station (Mukhrino FS, MFS) operating in Middle Taiga Zone Western Siberia. A multiscale approach was applied for investigations cycling. Carbon dioxide fluxes local scale...
Гидрология болот (ненарушенных экосистем торфяников) с трудом поддается количественному анализу. Основное предположение, используемое при количественном описании гидрологии болот, состоит в том, что болота могут сохранять воду, поступившую сосадками («эффект губки»). Но это предположение никогда не было доказано на основе экперементальных полевых данных. Недостающие данные, позволяющие проверить указанное суть: влагопроводность, водопроницаемость, фактическое испарение и перехват воды...
The vast undisturbed mires in western Siberia formed a significant sink of atmospheric carbon dioxide during the Holocene. However, lack spatially resolved simulation models hampers quantification Holocene accumulation entire mire systems. Here we developed three‐dimensional dynamic model, based on hydrological approach. We applied model to large complex simulate its development and quantify long‐term rate (LORCA). Our simulated LORCA with spatial variation 10–85 g C m −2 yr −1 . average...
To quantify carbon exchange fluxes in subarctic peatlands, new techniques and software for monitoring of methane using high-resolution emission spectra atmosphere observed from Space have been developed. Neural network technique is promissing nstantaneous retrieval content huge amount data provided by AIRS/AQUA sensor. IMG/ADEOS data, FIRE-ARMS forward simulations profiles IMG on the base constrained optimization were used purposes validation neural applied to data. Preliminary maps...