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Special Issue "River and Lake Catchments: Ecological Challenges, Hydrological Changes, Environmental Problems"

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School of Computer Engineering, Jinling Institute of Technology, Hongjing Avenue 99, Nanjing 211169, China
Interests: catchment hydrology; hydrological processes; hydrological regionalization; hydrological modeling; application of machine learning in hydrology; soil hydrological processes; soil-vegetation interactions

Prof. Dr. Christian Opp

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Guest Editor

Department of Geography, University of Marburg, 35037 Marburg, Germany
Interests: watershed hydrology; integrated lake/river; soil and water conservation; river engineering; soil degradation; contamination; dryland
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Special Issue Information

Dear Colleagues,

It is our pleasure to announce the opening of a new Special Issue in the Applied Sciences journal.

The topics of interest for this Special Issue include (but are not limited to) the following:

Spatial differentiation (characteristic upstream and downstream sections) of catchments;
Land cover changes causing discharge changes and hydrologic extremes;
Climate change causing discharge changes and hydrologic extremes;
Water withdrawal and consequences in different catchment sections;
Growing population number and consequences for river and lake catchments;
Pollution of rivers and lakes coming from different catchment sections;
External impacts on river and lake catchments;
Wetland and habitat functions of different catchment sections;
Vegetation cover and vegetation belts as barriers to environmental impacts on catchments;
River-lake (including reservoirs) sequences as water and sediment storage bodies;
Transboundary catchments;
Estuaries and lower catchments under the influence of sea level rise.

Dr. Tom Lotz
Prof. Dr. Christian Opp
Guest Editors

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Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Applied Sciences is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2300 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

river and lake catchments
hydrology
water resources
wetlands
biodiversity
habitat functions
ecosystem services
land use changes
pollution
climate change
sea level rise
sustainable development

Published Papers (2 papers)

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Research

Open AccessArticle

Preliminary Analysis of the Water Quality Status in an Urban Mediterranean River

Christina Papadaki

Sergios Lagogiannis

and

Elias Dimitriou

Appl. Sci. 2023, 13(11), 6698; https://doi.org/10.3390/app13116698 - 31 May 2023

Viewed by 395

Abstract

Recreational use of urban rivers is becoming popular since rivers may act as amenity corridors with the potential for exhibition, recreation, leisure, relaxation and retreat. However, several point and non-point pollution sources contribute to the degradation of urban rivers’ water quality, thereby impeding their beneficial uses and amenities. The physicochemical and microbiological quality of a Greek urban river (Kifisos–Athens) was analyzed over a period of 12 months. A sampling campaign was implemented, collecting monthly data from five sites. Spearman’s analysis showed significant correlation of the Hellenic Water Quality Index with specific nutrients. The total physicochemical status of all sampling stations was characterized as poor or bad. The annual average concentration of Escherichia coli (E. coli) was extremely high in four sites out of five, ranging from 16,822 to 26,780 cfu/100 mL. Bacteriological quality was unacceptable, as the study demonstrated the widespread occurrence of E. coli and low-quality physiochemical conditions. The spatiotemporal distribution of pollution levels revealed hotspots to be monitored further via automatic monitoring stations. A series of management and restoration measures, including tracing the exact pollution routes, should be initiated to minimize pollution pressures and establish the good ecological status of an important Mediterranean river. Full article

(This article belongs to the Special Issue River and Lake Catchments: Ecological Challenges, Hydrological Changes, Environmental Problems)

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Open AccessArticle

Spatial Distribution of Cu, Zn, Pb, Cd, Co, Ni in the Soils of Ili River Delta and State Natural Reserve “Ili-Balkhash”

and

Appl. Sci. 2023, 13(10), 5996; https://doi.org/10.3390/app13105996 - 13 May 2023

Viewed by 350

Abstract

River delta soils are the final spatial units of the matter flow within the whole river catchment. Due to their spatial position in the catchment and due to their fine grain size composition, river delta soils are important matter sinks in general, especially for heavy metals. The article presents the results of spectrometric analysis of heavy metals in the soils of the Ili River Delta and State Natural Reserve “Ili-Balkhash” in 2021. This area is included in the list of wetlands of international importance under the Convention on Wetlands. Heavy metals in the samples were determined using the flame atomic absorption spectrometric method using the AA-7000 atomic absorption spectrophotometer. The spatial distribution of the metals was visualized in the ArcGIS 10.5 environment. Copper concentrations were measured in the soils of the dry steppe, semi-desert and desert zones with average values up to 28.5 mg kg⁻¹ and a maximum level of 75.1 mg kg⁻¹. The concentrations of lead are 8.0–15.9 mg kg⁻¹. The cadmium content exceeds the standards from 2.1 to 6.5 mg kg⁻¹ on the whole territory at MPC 2.0 mg kg⁻¹, reaching up to 3.3 MPC (Maximum Permissible Concentration). The cobalt concentration ranges from 6.7 to 20.6 mg kg⁻¹, and nickel ranges from 11.3 to 22.2 mg kg⁻¹. Soil contamination due to cobalt and nickel is observed in the northern and eastern parts of the study area. The received data about pollution of the soil cover by heavy metals makes it possible to assess the degree of anthropogenic load of the unique natural environment in the Ili River Delta and natural reserve. Full article

(This article belongs to the Special Issue River and Lake Catchments: Ecological Challenges, Hydrological Changes, Environmental Problems)

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Special Issue "River and Lake Catchments: Ecological Challenges, Hydrological Changes, Environmental Problems"

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