Climate change sees a shift from groundwater recharge to surface runoff caused by frequently occuring heavy precipitation events which exceed the infiltration capacity of soil. Therefore, impact aquifers as buffer systems is reduced. At same time water demand for irrigation and cooling in agriculture increasing. To compensate, has be transferred ideally stored close reduce costs infrastructure. Even if supply major rivers do not suffer low levels dry periods available peak are out phase...

Abstract Understanding transport and fate processes in the subsurface is of fundamental importance to identify leaching potentials herbicides or other compounds groundwater resources. HYDRUS‐1D was used simulate water flow solute arable land lysimeters. Simulations were compared observed drainage rates stable isotopes (δ 18 O) drainage. Four different model setups investigated statistically evaluated for their performance dominant characterization vadose zone under similar cultivation...

Abstract This study investigates the contamination potential of herbicides to groundwater with help numerical modeling (HYDRUS‐1D) and stable carbon isotopes for characterizing biodegradation. Four herbicides, metolachlor, terbuthylazine, prosulfuron, nicosulfuron, were applied over a period 4.5 years on two lysimeters located in Wielenbach, Germany, monitored by lysimeter drainage. These contained soil cores dominated sandy gravel (Ly1) clayey silt (Ly2) both cropped maize ( Zea mays ). In...

The hydrological conditions a changing climate imposes require updated measures to address extreme water events sustainably. These must evolve from isolated solutions, such as retention basins, holistic management strategies that consider at least two situations simultaneously, floods and droughts. One strategy for sustainable groundwater is managed aquifer recharge (MAR), which copes with decreasing levels by targeted of aquifers. Using high source (Flood-MAR) can additionally cover the...

Stormwater in small catchments is a threat to agricultural land use and civilization. Increasing ambient temperatures increase the risks for severe rainfall surface runoff reduce amount of groundwater recharge. At same time, demand irrigation water rising. This development calls integrated strategies stormwater protection aquifer recharge.In this contribution, we present case study technical solution infiltrate into local aquifer. The site located an area well known hop cultivation. aquifers...

Co-management strategies for floods and droughts offer a promising solution dealing with two extremes that are increasingly close in time space. Techniques originally developed drought prevention, such as managed groundwater recharge (MAR), could use source of water (Flood-MAR) to simultaneously protect against flooding. The project Smart-SWS aims develop this concept further by capturing the flood waves river infiltrating them into aquifers nearby. Subsurface storage is created through...

The application of pesticides can induce severe impacts to the vadose zone, groundwater, and their ecosystems. A study was carried out on two lysimeters located in Wielenbach, Germany. Different soil textures were considered within cores, consisting sandy gravel clayey silt. vegetated with maize, four different herbicides applied according common agricultural practice. Over a period 4.5 years, concentrations selected metabolites monitored lysimeter drainage. In addition, stable carbon...

River quality is expected to change significantly as a consequence of climate change. Extended drought periods and decreasing groundwater levels will lower the contribution receiving streams heavy rain cause excessive surface runoff effects. Constant sources, like discharge from wastewater treatment plants or industrial installations, be diluted in largely different ratios. The overall hydrochemical dynamics will, therefore, likely increase. This affects flood management schemes other...

Characterizing unsaturated water flow in the subsurface is a requirement for understanding effects of droughts on agricultural production or impacts climate change groundwater recharge. By employing an improved lumped-parameter model (LPM) approach that mimics variable we have interpreted stable isotope data (δ18 O and δ2 H), taken over 3 years at lysimeter site located Germany. Lysimeter soil cores were characterized by sandy gravel (Ly1) clayey silt (Ly2), both lysimeters vegetated with...

With global warming, a rising amount of people will be affected by water scarcity and droughts. At the same time, precipitation intensities thus flood risks are projected to increase. Since these extremes often occur in location, co-management strategies floods droughts may offer promising solution. The project Smart-SWS, funded BMBF as part initiative WaX – Hydrological Extreme Events, links drought prevention protection with concept for infiltrating waves into riverine aquifers...

Climate changes in the anthropocene lead to an increase of rainfallintensity while infiltration capacity soil is reducedduring extended dry periods. As a consequence surface runoff increasesand groundwater levels are reaching all-time lows: even close thealps water becomes scarce. Keeping precipitation local mustand one option direct flood into aquifers(Flood-MAR). This comes with number challenges, first all, apronounced asymmetry floods very high volume flow veryshort times, and droughts...

<p>  </p><p>Metolachlor, terbuthylazine, nicosulfuron and prosulfuron are among the typical crop protection products used on maize plantations. Leaching of those lead to a decrease groundwater surface water quality. Often measured individual pesticides their metabolite concentrations in drinking exceeding limit established by European Council water. In our work we investigate contamination potential these four herbicides...