scholarly journals Climate and land use changes as origin of the Water Cycle variations and sediment transport in Pesaro Urbino Province, Central and Eastern Italy

2016 ◽  
Author(s):  
Daniele Farina ◽  
Paolo Cavitolo
Keyword(s):  
Land Use ◽  
Surface Water ◽  
Integrated Management ◽  
Land Use Changes ◽  
Winter Season ◽  
Base Flow ◽  
Gradual Transition ◽  
Mountain Areas ◽  
Mountain Area ◽  
Carbonate Aquifers

The study shows a significant net precipitation and surficial runoff decrease in the Province of Pesaro-Urbino during the 1950-2010 period, especially affecting mountain areas and the water-surplus winter season. Runoff variation is also related to a significant land use change, due to a progressive natural reafforestation process that has taken place in the mountain area. Candigliano river’s base-flow, fed by carbonate aquifers’ groundwater discharge, was found more stable over time, due to an aquifers’ capacity largely exceeding that of existing surface reservoirs. The latter have been affected by a significant silting process, which is still active, as suggested by specific erosion rates of watersheds, particularly in the Foglia basin. Important implications both on sediment mobility, surface water-supply reliability, minimum flow constraints and effectiveness of volume-recovery projects of reservoirs were preliminarly evaluated. In the perspective of a necessary adaptation process to the climate change, the study suggests a gradual transition from the present prevailing use of surface water, to an integrated management of the carbonate aquifers’ dynamic resources, on a seasonal base, as a sustainable strategy for the next future.

scholarly journals Seasonal Variability of the Acoustic Climate of Ski Resorts in the Aosta Valley Territory

Environments ◽  
2020 ◽  
Vol 7 (3) ◽  
pp. 18 ◽  
Author(s):  
Christian Tibone ◽  
Marco Masoero ◽  
Filippo Berlier ◽  
Giovanni Tabozzi ◽  
Daniele Crea ◽  
...  
Keyword(s):  
Environmental Protection Agency ◽  
Winter Season ◽  
Noise Pollution ◽  
Sound Sources ◽  
Mountain Areas ◽  
Mountain Area ◽  
North West ◽  
Ski Resorts ◽  
Acoustic Quality ◽  
High Level

The Aosta Valley is an alpine region in north-west Italy that is characterized by a high level of naturalness, with extensive uninhabited areas that are distant from artificial sound sources. The Aosta Valley Regional Environmental Protection Agency (ARPA-VdA) has been particularly sensitive to the preservation of the soundscape, which is considered an integral part of the landscape, since the laws on noise pollution were first introduced. The nature of the ski areas in the Aosta mountains, which undergoes changes throughout the year, is surely of great importance, especially during the winter season, when the number of visitors is particularly high. In fact, during the winter, the sounds of nature are replaced by those produced by recreation and sports activities. Mountain and snow tourism, which are developed in sensitive environmental contexts in the Aosta Valley, are sectors of immense social and economic importance. Much of this tourism takes place in ski resorts. Three mountain areas with different characteristics, in terms of attendance and recreational/sport activities, have been examined in this paper, as part of a collaboration between ARPA-VdA and the Politecnico di Torino. Acoustic measurements were performed in order to identify the seasonal variations of sound emissions from both natural and anthropic sound sources. In addition to the standard environmental acoustic descriptors foreseen by European legislation (LAeq, Ln, Lden, etc.), the harmonica (IH) index, which provides a quantitative evaluation of the acoustic quality on a zero to ten numerical scale, was used to qualify the acoustic climate of the three areas. The results presented in the paper provide useful information on a relevant subject—the preservation of the acoustic quality of a mountain area of touristic importance—which has been scarcely investigated so far.

scholarly journals The effect of land use changes to discharge extremities in Cimahi Watershed – Upper Citarum Watershed, West Java

2020 ◽  
Vol 148 ◽  
pp. 07002
Author(s):  
Siti Ai Nurhayati ◽  
Arwin Sabar ◽  
Mariana Marselina
Keyword(s):  
Water Quality ◽  
Land Use ◽  
Rock Type ◽  
Land Use Changes ◽  
Base Flow ◽  
Watershed Area ◽  
Landuse Change ◽  
Hydrological Conditions ◽  
The Impact ◽  
Land Changes

The development of cities and regencies in the Cimahi watershed area increases the rate of population growth which results in high land requirements in the Cimahi watershed area. Land se change affects the flow of runoff and debit of the Cimahi River. The purpose of this research is to assess the hydrological function area in the Cimahi watershed, the impact of the land use change and to analyze the effect of landuse change in the Cimahi watershed on the extremity of water resources in terms of both quantity and quality. The natural conservation index and the actual conservation index (IKA and IKC) are used as a parameter to indicate the existing hydrological conditions and ideal hydrological conditions for conservation which are calculated based on rainfall, rock type, slope, height and land use. The results of the conservation index showed that there was a decrease in the value of the IKC from 0.637 in 2000 to 0.608 in 2012. The debit extremity could be seen based on the calculations by moving averages on the debit data, and the resulting maximum debit value was greater and the value of the base flow (baseflow) was getting smaller. Land changes in the Cimahi watershed also had an influence on the river water quality.

scholarly journals Dampak Perubahan Penggunaan Lahan Terhadap Aliran Permukaan, Aliran Bawah Permukaan Dan Aliran Dasar Di Das Batugajah Kota Ambon

Agrologia ◽  
2018 ◽  
Vol 1 (2) ◽  
Author(s):  
Ruddi Soplanit ◽  
Charles Silahooy
Keyword(s):  
Land Use ◽  
Land Use Changes ◽  
Annual Runoff ◽  
Surface Flow ◽  
Base Flow ◽  
Forest Area ◽  
Water Yield ◽  
Residential Land ◽  
The Impact

The study was conducted to quantify the land use changes that have occurred in the watershed Batugajah and evaluate the impact of changes in land use to changes in surface flow, inter flow and base flow. The results showed that the change in land use in the watershed Batugajah of the year 1998-2010 as follows: The decline occurred from 215.70 ha forest area to forest area 58.88 ha or 28.73% decrease, increasing the wide use of residential land of 25 ha to 183.62 ha, an increase of 29.06%; vast improvement hamlet of 155, 65 ha to 221.78 ha, an increase of 12.12%. The impact of land use changes as follows: Runoff increased from 2288.35 mm to 2291.35 mm; annual runoff  increased from 2525.81 mm to 2646.70 mm; interflo) increased from 103.382 mm to 244.99 mm; Water yield increased from 210.48 mm to 220.56 mm and the base flow  dropped 141.07 mm to 110.35 mm.

scholarly journals Reconnaissance of Surface Water Estrogenicity and the Prevalence of Intersex in Smallmouth Bass (Micropterus Dolomieu) Inhabiting New Jersey

2020 ◽  
Vol 17 (6) ◽  
pp. 2024
Author(s):  
Luke R. Iwanowicz ◽  
Kelly L. Smalling ◽  
Vicki S. Blazer ◽  
Ryan P. Braham ◽  
Lakyn R. Sanders ◽  
...  
Keyword(s):  
Land Use ◽  
New Jersey ◽  
Surface Water ◽  
Endocrine Disruption ◽  
Environmental Protection Agency ◽  
Estrogenic Activity ◽  
Smallmouth Bass ◽  
The State ◽  
Base Flow ◽  
Median Surface

The observation of testicular oocytes in male fishes has been utilized as a biomarker of estrogenic endocrine disruption. A reconnaissance project led in the Northeastern United States (US) during the period of 2008–2010 identified a high prevalence of intersex smallmouth bass on or near US Fish & Wildlife Service National Wildlife Refuges that included the observation of 100% prevalence in smallmouth bass males collected from the Wallkill River, NJ, USA. To better assess the prevalence of intersex smallmouth bass across the state of New Jersey, a tiered reconnaissance approach was initiated during the fall of 2016. Surface water samples were collected from 101 (85 river, 16 lake/reservoir) sites across the state at base-flow conditions for estrogenicity bioassay screening. Detectable estrogenicity was observed at 90% of the sites and 64% were above the US Environmental Protection Agency trigger level of 1 ng/L. Median surface water estrogenicity was 1.8 ng/L and a maximum of 6.9 ng/L E2EqBLYES was observed. Adult smallmouth bass were collected from nine sites, pre-spawn during the spring of 2017. Intersex was identified in fish at all sites, and the composite intersex prevalence was 93.8%. Prevalence across sites ranged from 70.6% to 100%. In addition to intersex, there was detectable plasma vitellogenin in males at all sites. Total estrogenicity in surface water was determined at these fish collection sites, and notable change over time was observed. Correlation analysis indicated significant positive correlations between land use (altered land; urban + agriculture) and surface water estrogenicity. There were no clear associations between land use and organismal metrics of estrogenic endocrine disruption (intersex or vitellogenin). This work establishes a baseline prevalence of intersex in male smallmouth bass in the state of New Jersey at a limited number of locations and identifies a number of waterbodies with estrogenic activity above an effects-based threshold.

scholarly journals The Role of Transdisciplinary Research for Agricultural Climate Change Adaptation Strategies

Agronomy ◽  
2018 ◽  
Vol 8 (11) ◽  
pp. 237 ◽  
Author(s):  
Markus Schermer ◽  
Rike Stotten ◽  
Ulrich Strasser ◽  
Gertraud Meißl ◽  
Thomas Marke ◽  
...  
Keyword(s):  
Climate Change ◽  
Land Use ◽  
Climate Change Adaptation ◽  
Local Level ◽  
Land Use Changes ◽  
Transdisciplinary Research ◽  
Economic Sectors ◽  
Mountain Areas ◽  
Local Stakeholders

While science widely acknowledges the necessity of climate change adaptation (CCA), concrete strategies for CCA by major land-use actor groups at a local level are largely missing. Immediate economic challenges often prevent the establishment of long-term collective strategies. However, collective decisions on a communal level regarding land use are crucial for CCA strategies, given the interdependencies of farming with forestry, tourism, and other economic sectors, especially in mountain areas. This paper presents inter- and trans-disciplinary learning processes, which have evolved into a project modelling the hydrological effects of combined future climate and land-use changes based on the combined scenarios of climate and socio-economic change in an Alpine valley (Brixental in Tyrol/Austria). Locally adapted scenarios illustrate future land-use changes as a result of both climate change and different socio-economic developments. The hydrological results show how an increase in the forested area reduces streamflow (as a measure of water availability) in the long term. For local stakeholders, the process demonstrated clearly the interdependence of different economic sectors and the necessity for collective action at a regional level to influence socio-economic development. Moreover, it made them aware that local decisions on future land use may influence the effects of climate change. Consistent storylines helped stakeholders to visualize a desired future and to see their scope of influence. The transdisciplinary research process allowed local stakeholders to translate the hydrological modelling results into a concrete local CCA strategy.

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