Pathways to water sustainability? A global study assessing the benefits of integrated water resources management

Journal of Environmental Management, Journal Year: 2023, Volume and Issue: 343, P. 118179 - 118179

Published: May 29, 2023

Integrated water resources management (IWRM) has been central to governance and worldwide since the 1990s. Recognizing significance of an integrated approach as a way achieve Sustainable Development Goals (SDGs), IWRM was formally incorporated part SDG global indicator framework, thus committing UN its Member States achieving high implementation by 2030 measuring progress through 6.5.1. This paper examines extent which improves sustainable health water-related ecosystems-a first-of-its-kind in terms quantitative analysis on scale. To this objective, we conducted regression analyses between 6.5.1 (both (total score) dimensions 6.5.1) key environmental sustainability indicators: 6.2.1a (access basic sanitation), 6.3.1 (treated wastewater), 6.4.1 (water-use efficiency), 6.4.2 (water stress), 6.6.1 (freshwater ecosystems, although here trophic state turbidity variables were used) 6.3.2 (ambient quality). Our covers 124 countries for all these SDGs, with exception 6.3.2, cover 112 85 countries, respectively. Results show that IWRM-to different degrees-is mainly associated good status indicators, stress, quality, turbidity. We observe strong impact control such arrangements, economic situation geographical conditions. Lagged effects scope framework may also explain some observed variations degree association. study highlights importance further uncovering interlinkages achievement sustainability. Overall, results suggest is primarily linked systems, context-specific factors should be taken into account when evaluating effectiveness, enable policy- decision-makers make necessary adjustments optimize outcomes.

Language: Английский

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Chronic increasing nitrogen and endogenous phosphorus release from sediment threaten to the water quality in a semi-humid region reservoir

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 931, P. 172924 - 172924

Published: April 30, 2024

Language: Английский

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Seasonal Variation in the Water Quality and Eutrophication of Lake Xingyun in Southwestern China

Water, Journal Year: 2022, Volume and Issue: 14(22), P. 3677 - 3677

Published: Nov. 14, 2022

It is crucial to understand the spatial-temporal variation of water quality for safety and eutrophication migration in plateau lakes. To identify property main causes continuous deterioration, quality, including temperature (WT), dissolved oxygen (DO), pH, Chl-a, turbidity, total nitrogen (TN) phosphorus (TP), Lake Xingyun was monitored from 2016 2021, their spatial temporal distribution characteristics were analyzed. The results show that there no obvious thermal stratification vertical direction; pH DO decrease with depth, which caused by both physical biochemical processes, especially at bottom Xingyun, has an anaerobic environment. chlorophyll content higher during high-flow periods varied significantly more low-flow period alkaline throughout year. average (TP) ranged between 0.33 0.53 mg/L 0.22 0.51 periods, while 1.92 2.62 1.36 2.53 high- respectively. analysis inflow samples shows exogenous pollution source affecting Xingyun. trophic level index (TLI) all year round, even areas less affected nutrient, are still conditions cyanobacterial blooms. This study shed new light on status changes providing suggestions controlling lake mitigation.

Language: Английский

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Multivariable integrated risk and spatiotemporal characteristics assessment for water quality using comprehensive risk index in Jiangsu section of the south-to-north water diversion project, China

Environmental Geochemistry and Health, Journal Year: 2025, Volume and Issue: 47(5)

Published: March 26, 2025

Language: Английский

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Modeling the Impact of Water Hyacinth on Evapotranspiration in the Chongón Reservoir Using Remote Sensing Techniques: Implications for Aquatic Ecology and Invasive Species Management

Hydrology, Journal Year: 2025, Volume and Issue: 12(4), P. 80 - 80

Published: April 2, 2025

The proliferation of water hyacinth (Eichhornia crassipes) in the Chongón Reservoir, located within Parque Lago National Recreation Area Guayaquil, Ecuador, poses significant challenges to local aquatic ecosystem and resource management. This study assesses impact coverage on evapotranspiration rates over a 20-year period from 2002 2022 using remote sensing data geospatial analysis. Normalized Difference Vegetation Index (NDVI), derived Landsat satellite imagery, along with meteorological records, was utilized model spatial temporal dynamics its effects evapotranspiration. Our results indicate that fluctuates significantly between rainy dry seasons, increasing covering 10.42% reservoir area peak 42.33% 2017 during seasons. A strong positive correlation (r=0.92, p<0.001) found net daily loss due associated were higher season (mean 2309.90 mm/year) compared 1917.87 mm/year). These elevated contribute increased reservoir, potentially impacting availability for municipal agricultural use. Controlling spread is therefore crucial preserving reservoir’s ecological integrity ensuring sustainable findings this provide valuable insights informing management strategies aimed at mitigating invasive species freshwater resources maintaining health.

Language: Английский

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The effects of nutrient loading from different sources on eutrophication in a large shallow lake in Southeast China

Environmental Geochemistry and Health, Journal Year: 2023, Volume and Issue: 45(11), P. 7603 - 7620

Published: July 3, 2023

Language: Английский

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Contribution of Atmospheric Depositions to Inventory of Nutrients in the Coastal Waters of Crimea

Applied Sciences, Journal Year: 2023, Volume and Issue: 13(5), P. 3178 - 3178

Published: March 1, 2023

Coastal zones are extremely vulnerable and, at the same time, anthropogenically pressed. Excessive enrichment of marine waters with nutrients and organic matter can lead to “red tides”, oxygen deficits, decreasing assimilation capacity, etc. The purpose this work is study atmospheric precipitations as a source directly affecting coastal areas Crimea ultimately, strengthening eutrophication consequences. In 2004–2008, from 2015 present, samples have been collected Marine Hydrometeorological Station in Sevastopol. They analyzed for content inorganic nitrogen, phosphorus, silica. For 2009–2014, direct measurements unavailable previously retrieved multiple nonlinear regression equation has used estimate concentration nitrogen depending on meteorological conditions, including number precipitations, days without relative air humidity, wind direction vectors, temperature. Data obtained revealed that one important inputs local areas. Their contribution increases time scale days, while role rivers remains most annual scale. inventory becomes more significant summer, when seasonal stratification water column prevents vertical mixing waters, ambient upper layer minimal.

Language: Английский

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Cover Crop Effects on Surface Runoff and Subsurface Flow in Rainfed Hillslope Farming and Connections to Water Quality

Land, Journal Year: 2024, Volume and Issue: 13(7), P. 1103 - 1103

Published: July 21, 2024

Surface runoff and subsurface flow patterns were monitored in hillside plots almond olive orchards with soils covered spontaneous plants over two hydrological years. The experimental located on the south flank of Sierra Nevada (Lanjarón, SE Spain) at 580 m a.s.l. an area 40 m2 (10 × 4 m). surface discharge collected measured different soil depths (0, 5, 10, 25, 50 cm), dissolved nutrient concentrations (NO3–N, NH4–N, PO4–P, K) determined. According to findings, pathways drained most rainfall water compared runoff, which was affected by plant cover. influence intensity (I30) more meaningful than that flow. Throughout monitoring period, coefficients 0, cm averaged 0.04, 0.11, 0.14, 0.17, 0.18, respectively. Subsurface one dominant for N K loss, whereas P loss mainly occurred via runoff. Moreover, higher recommended level standard quality NO3–N, PO4–P. main route delivery, making these nutrients available root systems trees, where uptake is likely occur. Thus, lessening encouraging vegetation coverage facilitate recycling buffer rainfall’s impact surface, control can be achieved.

Language: Английский

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Integrated environmental assessment of a diversion-project-type urban water source considering the risks of novel and legacy contaminants

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 951, P. 175380 - 175380

Published: Aug. 8, 2024

Language: Английский

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INVESTIGATION OF CHLOROPHYLL-A VARIABILITY IN RED SEA USING SATELLITE-BASED METEOROLOGY AND OCEANOGRAPHY DATA

Geographia Technica, Journal Year: 2023, Volume and Issue: 18(2/2023), P. 238 - 248

Published: Oct. 20, 2023

The Red Sea has a special geographical feature because it is situated in the tropical and subtropical zones.The uniqueness of makes variability oceanography data (Chlorophyll-a (Chla), current, Salinity, etc.) meteorological (Precipitation, Wind Speed, etc.).However, investigations differences interaction meteorology are less studied Sea.Satellites modeling make possible to observe oceanographic over long period time.This study first demonstrates that there three major areas along represent different Chl-a concentrations during rainy season.The month July highest concentration south (1.3 mg/m 3 ) lowest north (0.18 ).The southern part generation mechanism from northern terms increasing decreasing concentrations.The existence surface runoff this area may result supply anthropogenic organic compounds fresh water coastal waters.This increase nutrients at peak season, finally part.In middle part, mainly affected by wind speed.Meanwhile, high salinity limit growth phytoplankton keep low.

Language: Английский

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