Implications of water resources management on the long-term regime of Lake Garda (Italy)

2022 ◽  
Vol 301 ◽  
pp. 113893
Author(s):  
Luigi Hinegk ◽  
Luca Adami ◽  
Guido Zolezzi ◽  
Marco Tubino
Keyword(s):  
Water Resources ◽  
Water Resources Management ◽  
Resources Management ◽  
Lake Garda

Modèle de simulation de la gestion hydrologique

1988 ◽  
Vol 15 (2) ◽  
pp. 206-215
Author(s):  
J. Llamas ◽  
R. Fernandez ◽  
A. Galvache
Keyword(s):  
Water Resources ◽  
Water Resources Management ◽  
Flood Control ◽  
Optimal Management ◽  
Hydro Power ◽  
Resources Management ◽  
Management Procedures ◽  
Historical Management ◽  
Different Levels

In this article, a general methodology for simulation of water resources management is suggested. The research has been conducted in three different levels: a deep analysis of the historical management procedures, the development of some alternative ways to optimal management, and the establishment of planning criteria at short, middle, and long term. The main constraints, divided into three categories according to the severity of probable losses, have been defined as a function of several expected goals: hydro power, flood control, recreational activities, etc. The model was applied with excellent results to the upper region of the St. François river basin (Québec, Canada). Key words: simulation, resources management, mathematical models, optimization.

Effects of Interactions Between Society and Environment on Policy in Water Resources Management: Exploring Scenarios of Natural and Human-Induced Shocks

2020 ◽  
Author(s):  
Iolanda Borzì ◽  
Murugesu Sivapalan ◽  
Brunella Bonaccorso ◽  
Alberto Viglione
Keyword(s):  
Resource Management ◽  
Water Resources ◽  
River Basin ◽  
Water Resource ◽  
Water Resources Management ◽  
Water Resource Management ◽  
Water Dynamics ◽  
Resources Management ◽  
Sustainable Water Resources Management

<p>In many regions of the world, water supply is threatened by natural hazards such as floods and droughts, as well as by shocks induced by anthropogenic changes to water use. Lack of anticipation and/or preparation for these events can lead to delayed or insufficient responses to sudden or developing water crises, that sometimes can produce irrecoverable damage to the environment. In this work, a socio-hydrological approach to sustainable water resources management of the Alcantara River Basin in Sicily (Italy) is adopted that explicitly takes into account feedbacks between the natural and the human components that might arise from shocks to the water management system, including possible evolution of policy responses. The Alcantara River Basin is a groundwater-fed catchment which supplies many villages on the Ionian coast up to Messina city, mainly through the Alcantara aqueduct, but also agricultural areas and industries, including hydropower plants. It also hosts the Alcantara Fluvial Park, an important natural reserve. The Alcantara aqueduct also supplied the city of Messina during a temporary failure of its main aqueduct caused by a landslide in October 2015. The main purpose of the work is to use the socio-hydrological model as a “screening tool” to frame water resource management issues in a broad way and provide guidance to the community to identify aspects of societal behavior that need to evolve towards sustainable water resource management in order to withstand future shocks. This has been done by scenario simulations in conditions of a natural shock affecting the system (i.e. drought) and of a human-induced one (i.e. increase in groundwater extraction). Sensitivity analysis of the model social parameters revealed how the value attributed by the society to the environment and water resources use, its capacity to remember previous water crises and, in particular, its previous responses to shocks, can affect the system in a way that can produce paradoxical effects. Results show how a rapid decision-making strategy that may work in the short term, can be counter-productive when viewed over the long term and how a do-nothing decision during a water crisis could be highly damaging to the environment. For the above-mentioned reasons, this socio-hydrological approach can be considered as a useful tool to understand human-water dynamics and to support decision-makers in water resource management policies with a broad and long-term perspective.</p>

Effects of Long-Term Variability on Water Resources Management Along the Boteti River in Botswana

2019 ◽  
pp. 25-47
Author(s):  
Dominic Mazvimavi ◽  
Moseki R. Motsholapheko
Keyword(s):  
Water Resources ◽  
Water Resources Management ◽  
Aquatic Plants ◽  
Dry Season ◽  
Okavango Delta ◽  
Crop Cultivation ◽  
Resources Management ◽  
Water Flows ◽  
Downstream Section

This chapter examines how the availability and non-availability of river flows has affected benefits realized by communities residing along the Boteti River in Botswana. The Boteti River, which is about 350 km long, derives all its flows from outflows of the Okavango Delta and then discharges into the Makgadikgadi Pans. Peak outflows from the delta occur during the dry season, June to October, and during wet years such as from 1974 to 1982, water flows along the whole river from the delta to the Makgadikgadi Pans. Since 1991, outflows from the delta have only covered about 50 km, with the rest of the river being dry. There has been lack of flows on the downstream section in some years (e.g., 1929-39, 1941-47). Communities residing along the 50 km stretch that is annually flooded benefit from the river through livestock watering, flood recession crop cultivation, fishing, and harvesting of aquatic plants for food and construction. These benefits were not realized by those residing along the rest of the 300 km stretch that was not receiving flows from the delta during the 1991-2008 period.

scholarly journals Temporal trend of drought and aridity indices in semi-arid pernambucano to determine susceptibility to desertification

RBRH ◽  
2020 ◽  
Vol 25 ◽  
Author(s):  
Fabianny Joanny Bezerra Cabral da Silva ◽  
José Roberto Gonçalves de Azevedo
Keyword(s):  
Water Resources ◽  
Water Resources Management ◽  
Extreme Events ◽  
Climate Trend ◽  
Resources Management ◽  
Tukey Test ◽  
Hydrological Extreme ◽  
Aridity Indices ◽  
Semi Arid

ABSTRACT In semi-arid regions, the use of drought and aridity indices in order to establish diagnoses and prognoses that help in water resources management is crucial, above all, for the evaluation of long-term water availability, and monitoring hydrological extreme events. Therefore, the aim of this study was to evaluate the trends of extreme events to determine susceptibility to desertification in the Brígida river basin, by Drought (RAI, SPI and PDSI) and Aridity (MIA, AI and AIASD) Indices. The results of these indices submitted to statistical analysis (Tukey Test) and to the evaluation of the climate trend (TREND software). The Tukey Test indicated that the PDSI and RAI method are the most suitable for drought analysis, while AI is most appropriate for aridity. The results indicated that regardless of the indices employed, the stations presented significant results in the trend analysis, suggesting intensification of these events over time. Therefore, concluded that drought and aridity indices could help water resources management by managing bodies, indicating the evolution of extreme hydrological phenomena, suggesting the adoption of preventive and mitigating actions regarding the use of water priority. In conclusion, these indices can be used as a tool for indicating areas susceptible to the desertification process.

scholarly journals Dendrohydrology and water resources management in South-Central Chile: Lessons from the Río Imperial streamflow reconstruction

2017 ◽  
Author(s):  
Alfonso Fernández ◽  
Ariel Muñoz ◽  
Álvaro González-Reyes ◽  
Isabella Aguilera-Betti ◽  
Isadora Toledo ◽  
...  
Keyword(s):  
Water Resources ◽  
Water Resources Management ◽  
Tree Ring ◽  
Hydrological Regime ◽  
Human Consumption ◽  
Central Chile ◽  
Resources Management ◽  
South Central ◽  
Instrumental Records

Abstract. Streamflow in South-Central Chile (SCC, ∼35° S–42° S) is vital for agriculture, forestry production, hydroelectricity, and human consumption. Recent drought episodes have generated hydrological deficits with damaging effects on these activities. This region is projected to undergo major reductions in water availability, concomitant with projected increases in water demand. However, the lack of long-term records hampers the development of accurate estimations of natural variability and trends. In order to provide more information on long-term streamflow variability and trends in SCC, here we report findings of an analysis of instrumental records and a 296-year tree-ring reconstruction of the summer streamflow of the Río Imperial (∼37°40' S–38°50' S). This is the first reconstruction in Chile targeted at this season. Results from the instrumental streamflow record (∼1940 onwards) indicated that the hydrological regime is fundamentally pluvial with a small snowmelt contribution during spring, and evidenced a decreasing trend, both for the summer and the full annual record. The reconstruction showed that streamflow below the average characterized the post-1980 period, with more frequent, but not more intense, drought episodes. We additionally found that the recent positive phase of the Southern Anular Mode has significantly influenced streamflow. These findings agree with previous studies, suggesting a robust regional signal and a shift to a new hydrological scenario. In this paper, we also discuss the implications of these results for water managers and stakeholders; we provide rationale and examples that support need for the incorporation of tree-ring reconstructions into water resources management.

scholarly journals Area-differentiated modeling of water balance in Pinios Basin, central Greece

2015 ◽  
Vol 17 (2) ◽  
pp. 221-235 ◽  
Keyword(s):  
Water Resources ◽  
Water Use ◽  
Water Resources Management ◽  
Resources Management ◽  
Central Greece ◽  
Total Runoff ◽  
Northern European ◽  
Hydrodynamic Evolution ◽  
Gains And Losses

<div> <p>GROWA is a modular grid based empirical hydrological model that is being used to address practical water resources management related issues. It has been successfully applied in typical hydrological and hydrogeological setups of northern European basins ranging typically between meso-scale river basins of about 1000 km<sup>2</sup> to entire States or river catchments of 100,000 km<sup>2</sup> or more. This paper examines the applicability of this model in a typical southern European environment where the typical water resources management pattern and also the controlling hydrodynamic evolution patterns differ considerably. As such, the River Pinios basin in central Greece, which has a spatial extent of some 11.000km<sup>2</sup>, is studied. Model compilation was based on long-term average climatic and hydrological data for a reference period of 23 years (1980-2002) and validation performed against 12 river discharge gauging stations distributed in the study basin. Specific discrepancies that were denoted are attributed to the importance of secondary processes in the evolution of the studied system (e.g. overall water use, groundwater crossflows). It is concluded that prior to model recalibration efforts special attention should be given to the inclusion of such processes (water gains and losses) into the model runs. Total runoff and groundwater recharge should consequently be linked to the overall water use and secondary inputs before they are used for strategic water resources management. Overall, GROWA was successfully applied in this typical Mediterranean Basin, despite the totally different climatic, pedological, hydrological and hydrogeological conditions for which it was originally designed and tested.</p> </div> <p>&nbsp;</p>

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