| publications-151 |
PEER REVIEWED ARTICLE |
2010 |
Adomako, D. |
Estimating groundwater recharge from water isotope (ÎŽ2H, ÎŽ18O) depth profiles in the Densu River basin, GhanaEstimating groundwater recharge from water isotope (ÎŽ2H, ÎŽ18O) depth profiles in the Densu River basin, Ghana |
|
10.1080/02626667.2010.527847 |
Uncategorized |
Natural Water Bodies |
|
No abstract available |
226536 |
|
|
|
| publications-152 |
PEER REVIEWED ARTICLE |
2013 |
Molina, J. L. |
Dynamic Bayesian Networks as a Decision Support Tool for assessing Climate Change impacts on highly stressed groundwater systems. |
|
10.1016/j.jhydrol.2012.11.038 |
Uncategorized |
Natural Water Bodies |
|
No abstract available |
226536 |
|
|
|
| publications-153 |
PEER REVIEWED ARTICLE |
|
Hendry, S. |
The implementation of the Groundwater Directive in Spain: legal analysis of the GENESIS case study. |
|
|
Data Management & Analytics |
Uncategorized |
|
No abstract available |
226536 |
|
|
|
| publications-154 |
PEER REVIEWED ARTICLE |
2013 |
Chalhoub, M. |
Water and bromide dynamics in a soil amended with different composts |
|
10.2136/vzj2012.0056 |
Uncategorized |
Natural Water Bodies |
|
Urban waste compost additions to soil can increase soil organic matter content and improve soil physical conditions, leading to agronomic and environmental benefits. The need for information still exists to evaluate more precisely the effects of urban waste compost on soil physical properties. Three types of urban waste composts, a biowaste compost (BIO), a municipal solid waste compost (MSW), and a coâcompost of green waste and sewage sludge (GWS), were applied once every 2 yr on a loamy soil for 10 yr. The effects of the three composts on soil water and solute transport dynamics were tested. Soil water matric head and water content were monitored using tensiometers and time domain reflectometry probes, respectively. A Brâ tracer experiment was also conducted to evaluate the effect of compost application on nonsorbing solute transport. Water content measurements showed that the application of composts significantly (P < 0.05) affected soil water content in the plow layer, with average increases of 0.03 cm3 cmâ3 for the GWS and MSW compost, and 0.015 cm3 cmâ3 for the BIO compost compared with a control without organic amendment. Bromide tracing during the wetting period showed that the application of urban waste composts did not affect the soil's potential for leaching. The application of composts did reduce soil evaporation during the spring, however, which in turn favored downward Brâ migration in the soil. |
226536 |
|
|
|
| publications-155 |
PEER REVIEWED ARTICLE |
2012 |
Stumpp, C. |
Effects of land cover and fertilization method on water flow and solute transport in five lysimeters: A long-term study using stable water isotopes. |
|
10.2136/vzj2011.0075 |
Uncategorized |
Natural Water Bodies |
|
Land cover and agricultural management practices can significantly influence soil structure. However, little is known about how fertilizer applications and land cover affect soil hydrology and groundwater recharge over long time periods. The objective of this study was to use stable water isotopes as environmental tracers to provide additional information required for better understanding of water flow and solute transport processes in the unsaturated zone influenced by land cover and type of fertilizer applications. Five lysimeters containing undisturbed soil monoliths from the same agricultural field site were investigated over a period of 5 yr. Liquid cattle slurry and solid animal manure were applied to the maize (Zea mays L.) and winter rye (Secale cereale L.) lysimeters. The grassâclover lysimeter was treated with mineral fertilizer. Quantitative influence of land cover and type of fertilizer application on water flow and solute transport was evaluated for all lysimeters using a modified version of HYDRUSâ1D. The highest drainage was observed in the maize lysimeter treated with cattle slurry, and the lowest in the grass lysimeter treated with mineral fertilizer. Pronounced differences in water contents and estimated saturated hydraulic conductivities between the lysimeters were restricted to the upper 25 to 30 cm of the soil. In particular, the lysimeters treated with animal manure had higher porosities, indicating a higher content of organic matter. Main differences in discharge between the lysimeters were observed in spring and during the plant growth periods, indicating the importance of nonuniform, patchy infiltration patterns during snow melt and of root water uptake, respectively. Mean water flow velocities, transit times, and effective water contents were estimated from the stable water isotope data, providing evidence on the impact of land cover and type of fertilizer application. We found smaller mean transit times in the maize lysimeters and for soils with liquid cattle slurry applications. Simulations indicate that numerical modeling can reproduce the general trend of water flow and isotope transport. Despite differences in mean transit times, fitted dispersivities were all in the same range, suggesting similar soil structures in the five lysimeters. However, more data for calibration and more information about heterogeneous infiltration would be required to improve the model accuracy. In general, stable water isotopes clearly contributed an added value, elucidating differences in mean flow parameters between the lysimeters. Thus, they provided evidence of the impacts of land cover and fertilizer applications, which are not obvious from water balance and mean discharge rates alone. |
226536 |
|
|
|
| publications-156 |
PEER REVIEWED ARTICLE |
No year available |
Pulido-Velazquez, M. |
Design of Efficient Water Pricing Policies Integrating Basinwide Resource Opportunity Costs. |
|
10.1061/(asce)wr.1943-5452.0000262. |
Uncategorized |
Natural Water Bodies |
|
No abstract available |
226536 |
|
|
|
| publications-157 |
PEER REVIEWED ARTICLE |
2013 |
Molina, J. L. |
Stochastic hydro-economic model for groundwater quality management using Bayesian networks: El Salobral-Los Llanos aquifer system. |
|
10.2166/wst.2012.598 |
Uncategorized |
Natural Water Bodies |
|
A strong normative development in Europe, including the Nitrate Directive (1991) and the Water Framework Directive (WFD) (2000), has been promulgated. The WFD states that all water bodies have to reach a good quantitative and chemical status by 2015. It is necessary to consider different objectives, often in conflict, for tackling a suitable assessment of the impacts generated by water policies aimed to reduce nitrate pollution in groundwater. For that, an annual lumped probabilistic model based on Bayesian networks (BNs) has been designed for hydro-economic modelling of groundwater quality control under uncertain conditions. The information introduced in the BN model comes from different sources such as previous groundwater flow and mass transport simulations, hydro-economic models, stakeholders and expert opinion, etc. The methodology was applied to the El SalobralâLos Llanos aquifer unit within the âEaster Manchaâ groundwater body, which is one of the largest aquifers in Spain (7,400 km2), included in the JĂșcar River Basin. Over the past 30 years, socioeconomic development within the region has been mainly depending on intensive use of groundwater resources for irrigating crops. This has provoked a continuous groundwater level fall in the last two decades and significant streamflow depletion in the connected JĂșcar River. This BN model has proved to be a robust Decision Support System for helping water managers in the decision making process. |
226536 |
|
|
|
| publications-158 |
PEER REVIEWED ARTICLE |
2012 |
Ilmonen, J. |
Responses of spring macroinvertebrate and bryophyte communities to habitat modification: community composition, species richness and red-listed species |
|
10.1899/10-060.1 |
Uncategorized |
Natural Water Bodies |
|
No abstract available |
226536 |
|
|
|
| publications-159 |
PEER REVIEWED ARTICLE |
|
Allan, A. |
Implementing the Water Framework and Groundwater Directives in Finland: lessons from the GENESIS project. |
|
|
Uncategorized |
Natural Water Bodies |
|
No abstract available |
226536 |
|
|
|
| publications-160 |
PEER REVIEWED ARTICLE |
No year available |
Godyn, I. |
Water use analysis in Silesia Region using an inputâoutput model |
|
10.4467/2353737xct.14.147.2106 |
Data Management & Analytics |
Precipitation & Ecological Systems |
|
No abstract available |
226536 |
|
|
|