Ecological Flows in Southern Europe: status and trends in non-perennial rivers DOI Open Access
Marianna Leone, Francesco Gentile, Antonio Lo Porto

и другие.

EarthArXiv (California Digital Library), Год журнала: 2023, Номер unknown

Опубликована: Май 16, 2023

The concept of environmental flows (E-Flows) describes the streamflow that is necessary to maintain river ecosystems. Although a large number methods have been developed, delay was recorded in implementing E–Flows non-perennial rivers. general aim paper analyse criticalities and current state implementation E-Flows rivers southern Europe. specific objectives were (i) European Union (EU) national legislation on E-Flows, (ii) methodologies currently adopted for setting EU Member States (MSs) Mediterranean Region (Spain, Greece, Italy, Portugal, France, Cyprus, Malta). From analysis legislations, it possible acknowledge step forward toward regulatory unification at level, subject more generally protection aquatic definition most countries, has abandoned idea regime constant minimal flow, but recognizes importance biological, chemical-physical aspects connected it. through review case studies, one can surmise science still an emerging discipline. limited availability hydrological, hydraulic, biological data as well restricted economic resources allocated managing are main causes MSs. results present study may contribute E-Flow

Язык: Английский

A review of modeling pesticides in freshwaters: Current status, progress achieved and desirable improvements. DOI Creative Commons
Marco Centanni, Giovanni Francesco Ricci, Anna Maria De Girolamo

и другие.

Environmental Pollution, Год журнала: 2022, Номер 316, С. 120553 - 120553

Опубликована: Ноя. 5, 2022

This study comprises a critical review of modeling pesticides in surface waters. The aim was to update the status use models simulate fate from diffuse sources. ISI papers were selected on Scopus and information concerning areas, type (herbicides, fungicides insecticides), model, methodology adopted (i.e., calibration and/or validation, spatial temporal scales) analyzed. studies carried out Europe (55.5%), North America (22.3%), Asia (13.9%) South (8.3%). Soil Water Assessment Tool proved be most used model (45.95%). Herbicides modeled (71.4%), followed by insecticides (18.2%) (10.4%). main herbicides atrazine, metolachlor, isoproturon, glyphosate, acetochlor. Insecticides such as chlorpyrifos metaldehyde. Chlorothalonil, tebuconazole) widely investigated. Based published studies, it found that approaches for assessing are constantly evolving algorithms work well with diverse watershed conditions, management strategies, pesticide properties. Several reported concentrations exceeding ecotoxicological thresholds revealing water contamination agriculture urban areas is priority issue current global concern.

Язык: Английский

Процитировано

37

Setting an environmental flow regime under climate change in a data-limited Mediterranean basin with temporary river DOI Creative Commons
Marianna Leone, Francesco Gentile, Antonio Lo Porto

и другие.

Journal of Hydrology Regional Studies, Год журнала: 2024, Номер 52, С. 101698 - 101698

Опубликована: Фев. 9, 2024

Catchment in Southern Italy. Mediterranean waterways are commonly non-perennial; they vulnerable to climate change (CC). Their management is particularly complex due limited data availability. This work aims develop a methodology for setting an Environmental Flow regime (E-Flows) temporary river (Locone, Italy) under availability and CC. As observed long-term time series of streamflow natural conditions were not available, the Soil Water Assessment Tool model (SWAT+) was applied simulate daily baseline period (1980–2010) future (2020–2050) based on projections, respectively. A specific workflow developed calibration focusing low flows. The hydrological characterized by means Indicators Hydrological Alteration (IHAs), whereas Range Variability Approach (RVA) define E-Flows. basin experiencing statistically significant increase air temperatures from 1971 2020, which also predicted continue future. Consequently, average annual monthly winter spring expected decrease. calibration, multi-objective evaluation, improved low-flow simulation. detected differences IHAs periods should be considered water when E-Flows rivers.

Язык: Английский

Процитировано

6

Ecological flow in southern Europe: Status and trends in non-perennial rivers DOI Creative Commons
Marianna Leone, Francesco Gentile, Antonio Lo Porto

и другие.

Journal of Environmental Management, Год журнала: 2023, Номер 342, С. 118097 - 118097

Опубликована: Май 15, 2023

The concept of environmental flows (E-Flows) describes the streamflow that is necessary to maintain river ecosystems. Although a large number methods have been developed, delay was recorded in implementing E-Flows non-perennial rivers. general aim paper analyse criticalities and current state implementation rivers southern Europe. specific objectives were (i) European Union (EU) national legislation on E-Flows, (ii) methodologies currently adopted for setting EU Member States (MSs) Mediterranean Region (Spain, Greece, Italy, Portugal, France, Cyprus, Malta). From analysis legislations, it possible acknowledge step forward toward regulatory unification at level, subject more generally protection aquatic definition most countries, has abandoned idea regime constant minimal flow, but recognizes importance biological, chemical-physical aspects connected it. through review case studies, one can surmise science still an emerging discipline. limited availability hydrological, hydraulic, biological data as well restricted economic resources allocated managing are main causes MSs. results present study may contribute E-Flow

Язык: Английский

Процитировано

15

Modeling pesticides and ecotoxicological risk assessment in an intermittent river using SWAT DOI Creative Commons
Marco Centanni, Giovanni Francesco Ricci, Anna Maria De Girolamo

и другие.

Scientific Reports, Год журнала: 2024, Номер 14(1)

Опубликована: Март 16, 2024

Abstract The present work aimed to predict the fate of two pesticides, copper (Cu) and glyphosate in a Mediterranean basin with an intermittent river assess ecotoxicological risk related their presence water bodies coupling field measurements streamflow pesticide concentrations, eco-hydrological model. Soil Water Assessment Tool (SWAT) model was calibrated and, subsequently used predicted environmental concentrations pesticides surface waters. Cu assessed at reach scale by using Toxicity Exposure Ratio approach (TER). Measurements (< 0.5 μg l −1 ) exceeded maximum European threshold quality standards for (EQS) 0.1 . High were wet season September, when is mostly vineyards olive grove productions. Acute (TER < 100) associated detected several reaches. 6.5 ), mainly as fungicide vineyards, results assessment revealed that November January critical months during which most reaches showed chronic Cu.

Язык: Английский

Процитировано

4

Trends in Flow Intermittency, Variability, and Seasonality for Taiwan Rivers DOI Open Access

Hsin-Yu Chen,

Xi Fang,

Hsin‐Fu Yeh

и другие.

Water, Год журнала: 2025, Номер 17(2), С. 271 - 271

Опубликована: Янв. 18, 2025

In Taiwan, rivers have steep slopes and short lengths, making it difficult to retain water in the rivers. Therefore, understanding flow characteristics is essential. This study analyzes data from 65 stations with over 30 years of records characterize annual mean number low-flow days, variability, seasonality occurrences. The analysis uses indices such as intermittency ratio, Richards–Baker flashiness index, six-month dry period (SD6) evaluates trends these using Mann–Kendall test. results show that nearly 70% an ratio less than 0.1, although days has significantly increased time. Stations southwestern watersheds exhibit higher variability; however, variability are not statistically significant. Low-flow events predominantly occur during season, 68% experiencing them between January March. findings on their long-term provide references for river management resource planning future.

Язык: Английский

Процитировано

0

Modelling occurrence and environmental risk of azithromycin in an intermittent river: Applying hydrological and water quality models DOI Creative Commons
Anna Maria De Girolamo, Giovanni Francesco Ricci, Giuseppe Parete

и другие.

Journal of Contaminant Hydrology, Год журнала: 2025, Номер unknown, С. 104552 - 104552

Опубликована: Март 1, 2025

Язык: Английский

Процитировано

0

Setting an ecological flow regime in a Mediterranean basin with limited data availability: The Locone River case study (S-E Italy) DOI
Marianna Leone, Francesco Gentile, Antonio Lo Porto

и другие.

Ecohydrology & Hydrobiology, Год журнала: 2023, Номер 23(3), С. 346 - 360

Опубликована: Март 23, 2023

Язык: Английский

Процитировано

10

Assessing fluctuations of long-memory environmental variables based on the robustified dynamic Orlicz risk DOI
Hidekazu Yoshioka, Yumi Yoshioka

Chaos Solitons & Fractals, Год журнала: 2024, Номер 180, С. 114336 - 114336

Опубликована: Янв. 24, 2024

Язык: Английский

Процитировано

3

Evaluating climate change impact on the hydrology of Kessie Watershed, Upper Blue Nile Basin, Ethiopia DOI Creative Commons
Asnake Enawgaw Amognehegn, Asmare Belay Nigussie, Dessalegn Worku Ayalew

и другие.

Applied Water Science, Год журнала: 2023, Номер 13(7)

Опубликована: Июнь 9, 2023

Abstract Climate change affects ecosystems, agriculture, human health, forestry, and water resource availability. This study is mainly aimed at assessing the climate effect on resources of Kessie Watershed in Upper Blue Nile Basin, Ethiopia. The updated Coupled Model Intercomparison Project Phase 6 (CMIP-6) data outputs were used. three model outputs: ACESS_ESM1-5, FGOALS_g3, GFDL_ESM4 with two shared socioeconomic pathways (SSP2-4.5 SSP5-8.5) scenarios, output rainfall temperature downscaled to station level through bias correction. catchment hydrology was represented by SWAT—Soil Water Assessment Tool—through calibration validation. Future temperatures evaluated Mann–Kendall trend test Sen’s slope estimator. analysis streamflow simulation done time horizons: 2050s (2041–2070) 2080s (2071–2100). baseline (1985–2014) used as a reference. global projection indicated mean annual precipitation show slight increase for future both scenarios all outputs. According SSP2-4.5 SSP5-8.5 respectively, expected 5% 4.89% 10.13% 6.8% based ACCESS_ESM1-5; 4.7% 3.8% 4.3% 4.84% FGOALS_g3; 4.67% 3.81% models data. Yearly average maximum may 3.62 °C 1.87 3.31 2.99 ACCESS ESM1-5, 1.76 1.25 3.44 2.61 FGOALS-g3, 2.15 3.83 1.37 2.66 GFDL-ESM4 Similarly, minimum also 2.73 1.90 5.63 4.52 3.04 2.43 3.55 4.36 2.31 3.29 2050s, 3.16 3.87 increase. In simulated from 12.1 21.8% 9.8 15.4% SSP5-8.5, whereas 2080s, 15.14 24.08% 13.08 41% respectively. potential case watershed seems able support irrigation other projects.

Язык: Английский

Процитировано

8

Retos y oportunidades para la evaluación del estado ecológico en ríos temporales DOI Creative Commons
Núria Bonada, María del Mar Sánchez‐Montoya, Núria Cid

и другие.

Ecosistemas, Год журнала: 2024, Номер unknown, С. 2655 - 2655

Опубликована: Март 9, 2024

Los ríos temporales (RTs) son ecosistemas fluviales en los que efectos de las perturbaciones antrópicas se mezclan con la propia perturbación natural impone temporalidad del flujo. A pesar avances el conocimiento RTs, todavía persisten muchas lagunas limitan desarrollo metodologías adecuadas para evaluación su estado ecológico. En esta revisión identificamos retos actuales correcta ecológico RTs y analizamos oportunidades existentes hacerles frente. Estos centran en: diferenciación entre naturales o hidrológicamente impactados, antrópicas, índices biológicos pozas desconectadas cauces secos, adaptación hidrogeomorfológicos, aplicación teoría metacomunidades RTs. Las están relacionadas con: uso nuevas herramientas moleculares, existencia alternativos a tradicionales, disponibilidad datos poder hacer modelización, implicación social hidrológico La centra mayoritariamente científico gestión acumulado desde implementación DMA España, pero recoge experiencias otros mundo guiar acciones conservación estos únicos altamente amenazados por cambio global.

Процитировано

2