A5029984492- Hydrology and Watershed Management Studies
- Peatlands and Wetlands Ecology
- Plant Water Relations and Carbon Dynamics
- Flood Risk Assessment and Management
- Groundwater flow and contamination studies
- Soil and Water Nutrient Dynamics
- Hydrology and Drought Analysis
- Water resources management and optimization
- Climate change impacts on agriculture
- Soil erosion and sediment transport
- Climate variability and models
- Hydrological Forecasting Using AI
- Environmental Conservation and Management
- Soil and Unsaturated Flow
- Hydrology and Sediment Transport Processes
- Economic and Environmental Valuation
- Soil Moisture and Remote Sensing
- Environmental Science and Technology
- Water Quality Monitoring Technologies
- Botany and Plant Ecology Studies
- Soil Carbon and Nitrogen Dynamics
- Irrigation Practices and Water Management
- Groundwater and Isotope Geochemistry
- Sustainability and Climate Change Governance
- Plant responses to water stress
Leibniz Centre for Agricultural Landscape Research
2014-2024
Dienstleistungszentrum Ländlicher Raum
2014
Institute of Hydrology of the Slovak Academy of Sciences
2012
[1] In wetlands or riparian areas, water withdrawal by plants with access to groundwater the capillary fringe often causes diurnal fluctuations. Various approaches use characteristics of these fluctuations for estimation daily evapotranspiration rates. The objective this paper was review available methods, compare them measured and assess their recharge assumptions. For purpose, we employed data 85 rain-free days a weighable lysimeter situated at grassland site in Spreewald wetland...
Abstract Many hydrological models have been calibrated and validated using hydrographs alone. Because streamflow integrates water fluxes in space, many distributed tend to multiple feasible descriptions of processes. This equifinality usually leads substantial prediction uncertainty. In this study, additional constraints—namely, the spatial patterns long‐term average evapotranspiration (ET), shallow groundwater level, land cover change—were used investigate reduction uncertainty Soil Water...
Hydrology is rich in methods that use information theory to evaluate monitoring networks. Yet most existing studies, only the available data set as a whole used, which neglects intraannual variability of hydrological system. In this paper, we demonstrate how can be considered by extending evaluation subsets data. Therefore, separately evaluated time windows fixed length, were shifted through set, and successively extended windows. We used basic measures greedy ranking algorithm based on...
Greenhouse gas flux monitoring in ecosystems is mostly conducted by closed chamber and eddy covariance techniques. To determine the relevance of two methods rice paddy fields at different growing stages, (CC) (EC) were used to measure methane (CH4) fluxes a flooded field. Intensive using CC method was 30, 60 90 days after transplanting (DAT) harvest (AHV). An EC tower installed centre experimental site provide continuous measurements during cropping season. The resulted CH4 averages that...
Abstract The rewetting technique border irrigation was installed in a degraded fen peatland northeastern Germany. Because of the prevailing site conditions, resulted two different variants (surface and temporary inundation) at study site. This paper reports on practicability this influence vegetation development, decomposition processes soil nutrient availability, possibilities for renewed peat accumulation. proved to be suited sites with continuous slope, deep layer low hydraulic...
ABSTRACT Information on trends and changes in moisture conditions over a region can help policymakers to develop strategies for water resources disaster risk management. In this study, the spatiotemporal variation of indices their annual Nigeria were investigated. Thornthwaite index ( MI ), standardized precipitation SPI ) precipitation‐evapotranspiration SPEI computed 1951–2014 period. Mann–Kendall trend Sen's slope tests used examine existence temporal spatial these indices. decreased with...
Facing the challenges of European Water Framework Directive and competing demands requires a sound knowledge hydrological system. This is major challenge in regions like Northeast Germany. The landscape has been massively reshaped during repeated advances retreats glaciation Pleistocene. resulted complex setting unconsolidated sediments with high textural heterogeneity layered aquifer systems, partly confined, but usually unknown number extent single aquifers. Institute Landscape Hydrology...
Large-scale assessments of agricultural productivity necessitate integrated simulations cropland and grassland ecosystems within their spatiotemporal context. However, simultaneous face limitations due to assumptions uniform species distribution. Grasslands, particularly those with shallow groundwater tables, are highly sensitive water availability, undergoing rapid composition changes. We hypothesised that predicting above-ground biomass (AGB) remains challenging these dynamic responses....
The impact of climate change and increased irrigation area on future hydrologic agro-economic conditions was analysed for a representative basin in northeastern Germany using an expanded version the WBalMO (water balance model) water management. model expansion represents various temporally spatially differentiated use processes, including agricultural irrigation, as part river basin’s We show that changes lead to demands future, which will not always be able met. resulting deficits were...
Information about the hydrological behaviour of a river basin prior to setting up, calibrating and validating distributed model requires extensive datasets that are hardly available for many parts world due insufficient monitoring networks. In this study, focus was on prevailing spatio-temporal patterns remotely sensed evapotranspiration (ET) enabled conclusions be drawn spatial peculiarities at rather high resolution. The ET were identified using principal component analysis time series 644...
The objective of this review is to evaluate recent quantitative changes in streamflow and lake water levels drainage basins Eastern Southern Africa. Findings indicate that the majority analyzed case studies report decreasing or between 1970 2010. causes change are chiefly anthropogenic, namely withdrawal, land use cover change, dams, only a lesser degree climate-related. However, there distinct regional temporal differences regarding reported causes, e.g. being mainly attributed Africa, dams
Understanding spatial drought characteristics is vital for planning adaptation and mitigation measures in river catchments. In many parts of the world, information not available due to lack adequate evenly distributed data analyses. This study elucidates a analysis data-scarce tropical catchment using remote sensing actual evapotranspiration (ET) potential (PET) data. Firstly, time series 690 images remotely sensed ET PET between years 2000 2014 were spatially analyzed deficit index (ETDI)...
Food security (FS) is a function of food availability, accessibility, stability and utilization. value chains (FVCs) are part the system characterized by five main components: natural resources, production, processing, markets consumption. Many methods available to assess single FVC components, but few cover series components. This paper introduces an integrated research framework which combines both qualitative quantitative methodologies across generic FVC. Furthermore, this approach...
Abstract Over the past centuries, agricultural use of wetlands in Central Europe has required interference with natural wetland water balance. Often this consisted drainage measures alone. In low‐precipitation areas, it also involved operation combined and sub‐irrigation systems. Model studies conducted as part planning processes, or a view to finding out impact changing climate conditions on balance wetlands, must take these facts into account. For reason, model been devised for whose is...