scholarly journals Macrophyte Diversity as a Response to Extreme Conditions in the Post-Mining Lakes of the Muskau Arch (West Poland)

Water ◽  
2021 ◽  
Vol 13 (20) ◽  
pp. 2909
Author(s):  
Małgorzata Oszkinis-Golon ◽  
Marcin Frankowski ◽  
Andrzej Pukacz
Keyword(s):  
Negative Impact ◽  
Extreme Environments ◽  
Species Number ◽  
Habitat Conditions ◽  
Anthropogenic Pressures ◽  
Chl A ◽  
Unique Character ◽  
Physico Chemical ◽  
Macrophyte Species ◽  
Main Factors

The pit lakes localized in the eastern part of the Muskau Arch (Western Poland) developed as a result of lignite mining at the turn of the 20th century. The formation of the lakes varied over time and was determined by many hydrogeochemical and biological factors, which resulted in very diverse ecosystems. Thirty of these lakes were studied in the vegetation seasons of 2016 and 2017. The aim of the study was to identify the main factors influencing the diversity of macrophyte vegetation growing under very extreme and diversified habitat conditions. Therefore, in each lake the numbers of macrophyte species and communities were determined, and the water was characterized by 26 physico-chemical parameters and Chl a. Additionally, the genesis, age, area and maximum depth of each lake was determined. The results showed high diversity of habitat conditions. Based on the physical and chemical water properties, four different clusters of lakes were distinguished. The multiple statistical comparisons showed that the main factors responsible for lake differentiation were pH, water mineralization and to a lesser extent, nutrient concentration and water transparency. The physico-chemical differentiation was reflected in the significant differences in the number of species, number of communities, maximum vegetation extent and amount of chlorophyll-a per lake. The correlational analyses confirmed significant relationships between habitat conditions and macrophyte flora diversity in the lakes. Some macrophyte species were found in very extreme environments not previously reported in the literature. Our results showed that in addition to natural processes affecting species diversity in the lakes, the negative impact of anthropogenic pressures (neutralization and fertilization of the water), which leads to the degradation of their unique character, is also an important factor.

scholarly journals The physico-chemical diversity of pit lakes of the Muskau Arch (Western Poland) in the context of their evolution and genesis

2018 ◽  
Vol 18 (3) ◽  
pp. 115-126 ◽  
Author(s):  
Andrzej Pukacz ◽  
Małgorzata Oszkinis-Golon ◽  
Marcin Frankowski
Keyword(s):  
Secchi Depth ◽  
Chemical Diversity ◽  
Habitat Conditions ◽  
Key Factors ◽  
Chemical Parameters ◽  
Chl A ◽  
Water Characteristics ◽  
Physico Chemical ◽  
Pit Lakes ◽  
Chemical Water

AbstractIn the vegetation seasons 2016–2017, a survey of 30 pit lakes localized in the eastern part of the Muskau Arch (Western Poland) was carried out. The aim of the study was to characterize the habitat conditions of the selected lakes, based on the physico-chemical water characteristics. We hypothesized that the age and genesis of pit lakes are the main factors responsible for their hydro-chemical diversity. Therefore, in each of the lakes 27 physico-chemical parameters and chlorophyll a were measured in the water surface, in the peak of the vegetation season (July–August). Additionally, they were described in terms of genesis, origin and age. The results showed that the investigated lakes display a high diversity of habitat conditions reflected in varied physico-chemical water properties (significant lake-to-lake differences). The parameters mostly responsible for the differences were: Secchi depth (transparency), pH, EC, colour, hardness, TP, TN, TC, Ca2+, Mg2+, Fe, Al, Mn, S and Chl a. The comparison of the type of excavated aggregate showed significant differences for four parameters only. Much greater differences were found for the genesis of lakes (mining method) – 15 of the 28 analysed parameters significantly differentiated the lakes. Further analysis showed that half of the studied parameters were significantly correlated with the age of the pit lakes. Our results suggest that in addition to natural changes, secondary human-caused transformations (mostly neutralization and fertilization of the water) were among the key factors responsible for the differentiation of the lakes.

Influence of Anthropogenic Pressures on Groundwater Quality from a Rural Area

2017 ◽  
Vol 68 (8) ◽  
pp. 1744-1748
Author(s):  
Catalina Stoica ◽  
Gabriela Geanina Vasile ◽  
Alina Banciu ◽  
Daniela Niculescu ◽  
Irina Lucaciu ◽  
...  
Keyword(s):  
Water Quality ◽  
Anthropogenic Activities ◽  
Groundwater Resources ◽  
Bacterial Load ◽  
Animal Husbandry ◽  
Anthropogenic Factors ◽  
Contamination Level ◽  
Anthropogenic Pressures ◽  
Limit Values ◽  
Physico Chemical

During the past few decades, the anthropogenic activities induced worldwide changes in the ecological systems, including the aquatic systems. This work analysed the contamination level of groundwater resources from a rural agglomeration (Central-Western part of Prahova County) by biological and physico-chemical approaches. The study was performed during the autumn of 2016 on several sampling sites (four drilling wells, depth higher than 100 m supplying three villages; two wells lower than 10 m depth and one spring). The water quality was evaluated by comparison with the limit values of the drinking water quality legislation (Law no.458/2002) and the Order 621/2014 (applicable to all groundwater bodies of Romania). The results showed that phenols and metals (iron and manganese) exceeded the threshold values in all sampling sites. Moreover, the anthropogenic factors including agriculture, use of fertilizers, manures, animal husbandry led to an increase of the bacterial load, particularly at wells sites.

A global review of the downstream effects of small impoundments on stream habitat conditions and macroinvertebrates

2015 ◽  
Vol 23 (3) ◽  
pp. 257-262 ◽  
Author(s):  
John Gichimu Mbaka ◽  
Mercy Wanjiru Mwaniki
Keyword(s):  
Ecological Effects ◽  
Stream Habitat ◽  
Habitat Conditions ◽  
Qualitative And Quantitative ◽  
Downstream Effects ◽  
Physico Chemical ◽  
Low Head ◽  
Quantitative Analyses ◽  
Physical And Chemical ◽  
Run Of River

The downstream ecological effects of large impoundments have previously been reviewed; however, little is known about the downstream ecological effects of small man-made impoundments. In this review, we examine 94 papers focusing on the effects of small impoundments on stream habitat conditions and macroinvertebrates. Most studies (89.3%) address the effects of small impoundments on physical and chemical habitat conditions, while fewer studies (48.9%) address the effects on macroinvertebrates. In general, most studies report no significant downstream effects of small impoundments on physico-chemical variables, whereas macroinvertebrates richness and abundance increased or decreased. Mean effect sizes (as Cohen’s d) for physico-chemical variables range from −0.82 to 0.68 (small weir: −0.21 to 0.35; run-of-river dam: −0.82 to 0.64; low head dam: −0.49 to 0.68), and from −0.03 to 0.63 for macroinvertebrates abundance and richness. Our assessment of the published literature demonstrates the advantage of combining qualitative and quantitative analyses, and that, while small impoundments may have minimal significant effects on most physico-chemical variables, macroinvertebrates’ richness and density may be affected. This review is relevant for management and scientific communities to identify potential alterations of stream habitats and biota by small impoundments.

scholarly journals FEATURES OF LAND RECLAMATION AND PROTECTION DURING MINING IN THE KRASNOYARSK TERRITORY

2020 ◽  
Vol 6 (2(71)) ◽  
pp. 4-8
Author(s):  
Olga Igorevna Ivanova ◽  
Aleksey Vasilevich Kozhukhovsky
Keyword(s):  
Land Reclamation ◽  
Negative Impact ◽  
Land Allocation ◽  
Water Protection ◽  
Land Resources ◽  
Mining Operations ◽  
Main Factors ◽  
Actual Height ◽  
The Impact ◽  
Impact Of Mining

The purpose of the study is to influence land resources during mining operations, and the main stages of land reclamation during mining on the example of the Tyradinsky gold Deposit, the "Zolotaya Tyrada" quarry, located in the Yenisei region of the Krasnoyarsk territory. The main factors of impact on land resources in the process of mining the field are considered; the analysis of measures to reduce the negative impact on land resources in the process of mining the field is carried out. The actual height and area of overburden dump not to exceed project, the reconfiguration of dumps allowed us to reduce the impact of mining on the environment, to avoid placing parts of the dumps in the water protection zone of the river Terada, thus there is no need of land allocation to forests of the first group and reduced the amount of removed topsoil. During the reclamation, potentially fertile soils (loam) taken from the quarry were used. There will be no deterioration in the impact on land resources during the liquidation process, due to the short duration of the work and within the existing land allotment.

scholarly journals An environmental database for the status of freshwater in Greece

2013 ◽  
Vol 4 (1) ◽  
pp. 1-14
Keyword(s):  
National Level ◽  
Reference Conditions ◽  
Ecological Status ◽  
Anthropogenic Pressures ◽  
Environmental Pressures ◽  
Physico Chemical ◽  
Other Information ◽  
The Status ◽  
Freshwater Bodies ◽  
Status Data

An environmental database has been created, recording water bodies at a national level and assembling relevant data collected by various public services and institutions in charge of water resources management and research in Greece. Data consists of physico-chemical parameters, geomorphological descriptions, inventories of fauna and flora species, environmental pressures, vulnerability evaluation and other information useful for the assessment of current and future ecological status. Data gathering has proven to be a challenging task, due to the large number and the generally small size of the surface freshwater bodies as well as the numerous competent services and institutions and the multiple and sometimes conflicting responsibilities that therefore result. The latter is also partly the cause of lack of continuity of data, gaps or sometimes questionable reliability. Performing a global data overview, we note that (a) ecological status can be characterized as good for the majority of the sites, especially for small mountain streams, and (b) the general trend in most cases is degradation of current conditions, related either to anthropogenic pressures or to human activity combined with natural factors. This database, in a more completed and enriched form, could assist in the implementation of 2000/60/EC Directive in Greece and the establishment of reference conditions of surface freshwater systems.

СИСТЕМНОЕ РЕШЕНИЕ ПРОБЛЕМЫ ВОДООБЕСПЕЧЕННОСТИ ОБЪЕКТОВ МЕЛИОРАТИВНОГО КОМПЛЕКСА

2020 ◽  
pp. 7
Author(s):  
V.B. Zhezmer
Keyword(s):  
Water Use ◽  
Water Availability ◽  
Arid Regions ◽  
Crop Yields ◽  
Negative Impact ◽  
Drainage Systems ◽  
Amount Of Information ◽  
Main Factors ◽  
The Creation ◽  
The Arid Regions

Водообеспеченность объектов мелиоративного комплекса имеет решающее значение при обеспечении высоких и устойчивых урожаев сельскохозяйственных культур в аридных регионах страны. В статье рассмотрены способы устранения негативного влияния основных факторов, способствующих созданию дефицита воды для орошения. Проведен анализ схемы, в которой целью мероприятий является эффективное вложение средств при восстановлении элементов гидромелиоративных систем и обеспечение рационализации водопользования. Установлено, что алгоритмы и конечные выводы, подученные в ходе анализа, могут различаться в зависимости от поставленных задач и объема информации.Water availability of the reclamation complex facilities is crucial in ensuring high and sustainable crop yields in the arid regions of the country. The article discusses ways to eliminate the negative impact of the main factors contributing to the creation of a shortage of water for irrigation. The analysis of the scheme in which the purpose of the measures is an effective investment in the restoration of elements of irrigation and drainage systems and ensuring the rationalization of water use is carried out. It is established that the algorithms and final conclusions obtained during the analysis may vary depending on the tasks and the amount of information.

scholarly journals Aquatic Worm Assemblages along the Danube: A Homogenization Warning

Water ◽  
2020 ◽  
Vol 12 (9) ◽  
pp. 2612
Author(s):  
Ana Atanacković ◽  
Ferdinand Šporka ◽  
Vanja Marković ◽  
Jaroslav Slobodnik ◽  
Katarina Zorić ◽  
...  
Keyword(s):  
Water Management ◽  
Flow Velocity ◽  
Aromatic Hydrocarbons ◽  
Ecological Status ◽  
Danube River ◽  
Chemical Parameters ◽  
Longitudinal Surveys ◽  
Physico Chemical ◽  
Polycyclic Aromatic ◽  
Main Factors

In this study, we analyzed the impacts of different environmental conditions on aquatic worm communities along the Danube River, based on two longitudinal surveys, the Joint Danube Surveys 2 and 3 (JDS; 2007 and 2013). We identified the most important environmental factors (among analyzed groups) that shape worm communities: hydromorphlogical alterations, flow velocity and substrate (HYMO group), dissolved oxygen, nitrates and nitrites (physico-chemical parameters), zinc and nickel (metals), monobutyltin cation, benzo(b) fluoranthene and benzo(k)fluoranthene, polychlorinated biphenyls PCB 77 and PCB 118 (selected chemical determinants—organotin compounds, Polycyclic aromatic hydrocarbons—PAHs and PCBs). A homogenization of species composition of Oligochaeta assemblages along the Danube was confirmed. As one of main factors related to biotic homogenization, hydromorphological alterations represented by similar changes in flow velocity and substrates along Danube’s course could be singled out. Our results indicate that Oligochaeta could be used for the identification of the level of hydromorphological degradation in large rivers (homogenization), rather than for stressors classified as nutrient and organic pollutants. Our results provide additional evidence in risk assessment of the environment, contributing in water management and monitoring of the ecological status as proposed by the Water Framework Directive.

scholarly journals An Ecological Dynamics Model of Algae Growth in Taihu Lake and the Analysis of its Influencing Factors

2012 ◽  
Vol 518-523 ◽  
pp. 4961-4966 ◽  
Author(s):  
Qing Quan Liu ◽  
Yong Gao ◽  
Xu Feng Xu
Keyword(s):  
Taihu Lake ◽  
Maximum Growth ◽  
Maximum Growth Rate ◽  
Temperature Influence ◽  
Dynamics Model ◽  
Ecological Dynamics ◽  
Chl A ◽  
Half Saturation Constant ◽  
Algae Growth ◽  
Main Factors

For the study on the eutrophication problem in Taihu Lake of China, an ecological dynamics model of algae growth is established based on the simulation of the growth of the dominating algae in Taihu Lake. Chlorophyll-a (chl-a), total phosphorus (TP) and total nitrogen (TN) are chosen to be the water quality variables. The main factors influencing the algae growth in Taihu Lake are investigated by the sensitivity analysis of the model’s parameters. The results show that the maximum growth rate of algae, the algae respiration rate, the coefficients of temperature influence and the half saturation constant for phosphorus have significant influences on the simulation results. Temperature and TP are the dominating factors of influencing the algae growth in Taihu Lake.

Distribution of aquatic pulmonate snail species in contrasting habitats within the Ross River Reservoir (stage 2a), tropical Northern Australia

1995 ◽  
Vol 46 (7) ◽  
pp. 1033 ◽  
Author(s):  
M Hurley ◽  
MN Hearnden ◽  
BH Kay
Keyword(s):  
Temporary Ponds ◽  
Chemical Characteristics ◽  
Snail Species ◽  
Northern Australia ◽  
Wet Season ◽  
Habitat Types ◽  
Physico Chemical ◽  
River Reservoir ◽  
Macrophyte Species ◽  
Contrasting Habitats

Monthly distributions of three snail species in three distinct habitat types from February 1992 to May 1993 were found to be variable, with peak abundances occurring predominantly in the late wet season (March to May) for Amerianna carinata and Gyraulus gilberti and in the late dry season (September to November) for Austropeplea lessoni. No consistently positive or negative patterns of correlation were recorded between numbers of snails and physico-chemical characteristics or the amount or composition of emergent and submerged macrophyte species. However, highest densities of A. lessoni and A. carinata were recorded in temporary ponds, where the biomass of periphyton was greatest. Significantly lower amounts of periphyton were recorded from open bays and permanent creeks. Highest densities of G. gilberti occurred in permanent creeks. Physico-chemical variables, rainfall patterns and macrophyte species were not good indicators of snail abundance in the Ross River reservoir. The best indicator of snail density appeared to be whether vegetated habitat is located within open bays, permanent creeks or isolated peripheral ponds.

scholarly journals NATURAL CLEANING OF OIL POLLUTED SEASHORES

1972 ◽  
Vol 1 (13) ◽  
pp. 144 ◽  
Author(s):  
Georges Drapeau
Keyword(s):  
Sea Water ◽  
Wave Action ◽  
Fuel Oil ◽  
Chemical Characteristics ◽  
Stable Emulsion ◽  
Mechanical Abrasion ◽  
Physico Chemical ◽  
Main Factors ◽  
One Year ◽  
Type Fuel

Field observations were carried out for a period of 20 months on the seashores of Chedabucto Bay, following the spillage of 108, 000 barrels of bunker C oil in the bay by the tanker Arrow in February 1970. The main factors that control the natural cleaning of seashores are as follows: 1) Physico-chemical characteristics of oil: The bunker C-type fuel oil carried by the tanker Arrow forms, when spilled at sea, a very stable emulsion containing some 40 percent sea water. The emulsion formed is 40 times as viscous as pure bunker C (30,000 poises at 32°F). 2) Nature of polluted seashore: The natural cleaning of seashores is essentially mechanical. Abrasion of oil is most rapid on sand beaches because sand-size sediments are moved more vigourously by wave action. Such beaches clean within six months. Cobble and boulder beaches take one year to clean in Chedabucto Bay. Bedrock outcrops are still covered with a veneer of "dried" oil after 20 months of exposure to the surf. 3) Hydrodynamics of the environment: Wave action is the dominant source of energy that reaches the seashores of Chedabucto Bay and the cleaning of beaches is directly related to the amount of wave energy reaching different areas of the seashore.

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