scholarly journals The Variability of Lake Water Chemistry in the Bory Tucholskie National Park (Northern Poland)

Water ◽  
2020 ◽  
Vol 12 (2) ◽  
pp. 394 ◽  
Author(s):  
Mariusz Sojka ◽  
Adam Choiński ◽  
Mariusz Ptak ◽  
Marcin Siepak
Keyword(s):  
Chemical Analysis ◽  
National Park ◽  
Geological Structure ◽  
Quality Parameters ◽  
Anthropogenic Pressure ◽  
Small Catchment ◽  
Lake Water Chemistry ◽  
Low Concentrations ◽  
Lobelia Lakes ◽  
Lake Waters

The paper presents the results of chemical analysis of lake waters in Bory Tucholskie National Park (BTNP). The BTNP area is unique due to its location within a single catchment and high variability in geological structure. Moreover, the lakes have different morphometric parameters, represent different hydrological types, trophic types and thermal regimes. Another unique feature is the existence of five lobelia lakes. This name comes from the Latin name of the taxon – Lobelia dortmanna L. which has been included in the Polish Red Data Book of Plants. The chemical analysis included 55 parameters, within macro elements (MEs), trace elements (TEs) and rare earth elements (REEs). Low concentrations of MEs, TEs and REEs confirm the absence of anthropogenic pressure. High variation of ME, TE and REE contents between individual lakes is due to different geological structure. The cluster analysis enabled lakes to be divided into six groups taking into account all analyzed water quality parameters. The lobelia lakes were characterized by the lowest concentrations of MEs and REEs, which mainly result from the small catchment area and their mainly endorheic character. The highest variability of MEs, TEs and REEs occurred in endorheic lakes, where the geological structure was dominant. The lowest variability of MEs, TEs and REEs occurred in the lakes connected by the Struga Siedmiu Jezior stream. The analysis of MEs, TEs and REEs in relation to the environmental factors and trophic, hydrologic and thermal typology allowed a better understanding of their spatial distribution in the BTNP lakes. The obtained results indicate that the values of the studied elements were generally close to the average values noted in surface waters according to the Geochemical Atlas of Europe.

scholarly journals Bioecological and statistical risk assessment of toxic metals in sediments of a worldwide important wetland: Gala Lake National Park (Turkey)

2017 ◽  
Vol 43 (1) ◽  
pp. 34-47 ◽  
Author(s):  
Cem Tokatli
Keyword(s):  
Ecological Risk ◽  
National Park ◽  
Risk Index ◽  
Sediment Quality ◽  
Potential Ecological Risk ◽  
Irrigation Canal ◽  
Anthropogenic Pressure ◽  
Ecological Risk Index ◽  
Potential Ecological Risk Index ◽  
Biological Risk

Abstract Gala Lake National Park that has an international importance is one of the most important wetland ecosystems for Turkey. As same as many aquatic habitats, Gala Lake is under a significant anthropogenic pressure originated from agricultural activities conducted around the lake and from industrial discharges by means of Ergene River. The aim of this study was to evaluate the sediment quality of Gala Lake and Irrigation Canal by investigating some toxic element accumulations (As, B, Ni, Cr, Pb, Cd, Zn and Cu) from a statistical perspective. Pearson Correlation Index (PCI) and Factor Analysis (FA) were applied to detected data in order to determine the associated contaminants and effective factors on the system. Potential Ecological Risk Index (RI) and Biological Risk Index based sediment quality guidelines (mERM-Q) applied to detected data in order to assess the ecological and biological risks of heavy metals in the ecosystem. Also Geographic Information System (GIS) technology was used to make visual explanations by presenting distribution maps of investigated elements. According to the results of PCI, significant positive correlations were recorded among the investigated toxic elements at 0.01 significance level. According to the results of FA, two factors, which were named as “Agricultural Factor” and “Industrial Factor”, explained 86.6% of the total variance. According to the results of Potential Ecological Risk Index, cadmium was found to be the highest risk factor and according to results of Biological Risk Index, nickel and chromium were found to be the highest risk factors for Gala Lake and Irrigation Canal. As a result of the present study, it was also determined that heavy metal contents in sediments of Gala Lake National Park reached to critical levels and the system is intensively under effect of agricultural and industrial originated pollution.

scholarly journals RIQUEZA ESPECÍFICA EM ÁREAS DE CAMPO NATIVO IMPACTADAS POR VISITAÇÃO TURÍSTICA E PASTEJO NO PARQUE NACIONAL DOS CAMPOS GERAIS, PR

FLORESTA ◽  
2011 ◽  
Vol 41 (2) ◽  
Author(s):  
Karine Dalazoana ◽  
Rosemeri Segecin Moro
Keyword(s):  
Species Diversity ◽  
National Park ◽  
Anthropogenic Factors ◽  
Species Number ◽  
Anthropogenic Pressure ◽  
Grassland Community ◽  
Campos De Altitude ◽  
Resistant Species ◽  
Native Grassland ◽  
Selection Of

O Parque Nacional dos Campos Gerais (PNCG) detém áreas de campos de altitude sob forte pressão antrópica, com a expansão das atividades agrícolas, pecuária, silvicultura e visitação turística desordenada. Devido ao impacto gerado, existe uma tendência à diminuição da riqueza específica, através da seletividade de espécies. Este trabalho analisa a resposta das comunidades campestres em termos de composição de espécies aos impactos de pastejo, roçada e pisoteio humano. Em quatro estações de coleta, foram determinados 107 táxons distribuídos em 23 famílias botânicas. As famílias com maior riqueza específica foram Asteraceae e Poaceae, ambas com 24 táxons, e Fabaceae, com 14 táxons. A riqueza específica variou de 27 a 75 espécies, com maior riqueza na estação não pastejada nem roçada, apenas visitada por turistas. O levantamento mostrou que, apesar da pressão antrópica, as áreas estudadas exibem considerável riqueza específica quando comparadas a outros trabalhos na região, mantendo ainda seu potencial biótico dinâmico. Floristicamente, os impactos gerados por gado ou por manejo com roçadeira se equivalem. Seis gêneros têm potencial para serem utilizados como bioindicadores de áreas conservadas: Croton, Galactia, Periandra, Cuphea, Pavonia e Commelina, mas há necessidade de ampliação das áreas estudadas para estabelecer mais claramente seu valor de bioindicação.Palavras-chave: Campo nativo; Campos Gerais; área impactada; pastejo; visitação turística. AbstractThe species diversity in native grassland areas that are under impact of tourism and grazing at Campos Gerais National Park, Parana, Brazil. Campos Gerais National Park (PNCG) has areas of grassland under high anthropogenic pressure, as expansion of agricultural activities, livestock, forestry and disorderly tourism. Due to these impacts, there is a tendency to decrease local biodiversity by selection of more resistant species. This paper focuses the grassland community answers to mowing, grazing and tourism. In four sampling sites it was determined 107 taxa belonging to 23 botanic families. The main families are Asteraceae (24 taxa), Poaceae (24 taxa) and Fabaceae (14 taxa). Species diversity varied from 27 to 75 species. In relation to species number, non-grazed areas presented greater diversity than other ones; it points to that touristic visitation may cause lower impact than grazing or mowing. In spite of the anthropogenic factors, the focused sites presented high specific diversity in relation to related areas. In relation to species diversity, grazing or mowing are equal. Six genera presented potentiality as bioindicators of preserved environments: Croton, Galactia, Periandra, Cuphea, Pavonia, and Commelina, although more sample areas are necessary to reliable results.Keywords: Grasslands; Campos Gerais; impacted area; grazing; touristic activities.

scholarly journals Effect of Silvofishery on Ponds Nutrient Levels (Pengaruh Silvofishery Terhadap Kandungan Nutrien di Tambak)

2014 ◽  
Vol 19 (2) ◽  
pp. 81 ◽  
Author(s):  
Anna Ida Sunaryo Purwiyatno ◽  
Fitri Agustriani
Keyword(s):  
Water Quality ◽  
National Parks ◽  
National Park ◽  
Sampling Method ◽  
Phosphorus Content ◽  
Nutrient Content ◽  
Pond Water ◽  
Quality Parameters ◽  
Mangrove Forests ◽  
Purposive Sampling

Taman Nasional Sembilang merupakan salah satu taman nasional yang terletak di Sumatera Selatan dan menjadi kawasan mangrove terbesar di barat Indonesia. Sebagian besar wilayah mangrovenya telah mengalami alih fungsi menjadi tambak pasang surut. Hal ini menyebabkan timbulnya kekhawatiran kerusakan mangrove di taman nasional. Salah satu upaya untuk mempertahankan wilayah mangrove adalah dengan melakukan sistem silvofishery, yaitu penanaman mangrove dan budidaya bandeng dilakukan secara bersamaan di tambak. Penelitian ini bertujuan untuk menganalisis kualitas air dan kondisi nutrien di tambak di daerah restorasi silvofishery di Taman Nasional Sembilang. Penelitian dilakukan dengan metode purposive sampling di tambak silvofishery, tambak non-silvofishery, dan badan air sungai di seluruh wilayah taman nasional. Pengukuran dilakukan terhadap parameter kualitas air dan kandungan nutrien khususnya nitrat dan fosfat. Hasil penelitian menunjukkan bahwa kehadiran tanaman mangrove di daerah tambak mampu memperbaiki kandungan oksigen dan pH air tambak. Mangrove juga menunjukkan kemampuan dalam mengikat nitrat yang secara tidak langsung akan mencegah air tambak dari polusi. Namun, kandungan fosfat tinggi menunjukkan bahwa tanaman mangrove muda di wilayah restorasi belum mampu mengikat nutrien ini secara signifikan. Hasil penelitian ini menunjukkan bahwa hutan mangrove sangat bermanfaat bagi kegiatan budidaya tambak karena kemampuannya dalam menyerap polutan nutrient. Kata kunci: silvofishery; kolam; nitrat; fosfat; Taman Nasional Sembilang Sembilang National Park is one of the national parks which is located in South Sumatera and became the largest mangrove area in western Indonesia. Most of the mangroves area in this national park has been experiencing conversion to be tidal ponds. This has resulted in concerns on mangrove forest destruction in the park. One of the efforts to maintain mangroves area is by applying silvofishery system, which is mangrove planting and cultivation of milkfish in ponds performed simultaneously. This study aims to investigate the water quality and nutrient condition in the ponds in the area of silvofishery restoration at Sembilang National Park. The study was conducted by purposive sampling method in the silvofishery ponds, non-silvofishery ponds, and river water bodies throughout the park. Measurements conducted on water quality parameters and nutrient content, especially nitrate and phosphate. The results showed that the presence of mangrove in the ponds area is able to improve the oxygen content and pH of pond water. Mangroves also demonstrated the ability to bind nitrates which indirectly will prevent the pond water from pollution. However, the high phosphorus content showed that young mangrove plants in the restoration area have not been able to significantly bind the of this nutrient. The results of this study showed that mangrove forests are very beneficial for aquaculture activities because of its ability to absorb nutrient pollutants. Keywords: silvofishery; ponds; nitrate; phosphate; Sembilang National Park

scholarly journals Białowieża Forest (Ne-Poland) and Valday Np ( Nw-Russia) – Biogeographical Characteristics of Eutrophic Deciduous Forests

2014 ◽  
Vol 33 (3) ◽  
pp. 111-122 ◽  
Author(s):  
Jan Marek Matuszkiewicz ◽  
Elena Bielonowska ◽  
Anna Kowalska ◽  
Nadjeżda Cariewska ◽  
Jarosław Baranowski ◽  
...  
Keyword(s):  
National Park ◽  
Deciduous Forest ◽  
Deciduous Forests ◽  
Anthropogenic Pressure ◽  
The Past ◽  
The North ◽  
Ne Poland ◽  
North Eastern ◽  
Białowieża National Park ◽  
Eastern Border

Abstract During geobotanical studies in the north-eastern border of hemi-boreal zone, in Valday (NW Russia), rare eutrophic deciduous forests dominated by oak Quercus robur were observed. A comparison of these forests with the model of European deciduous forest in Białowieża National Park (NE-Poland) indicates a great similarity. Therefore, eutrophic deciduous forests in Valday can be classified to the Querco-Fagetea class, the Fagetalia sylvaticae order and to the Capinion betuli alliance, despite the absence of hornbeam Carpinus betulus in the region. Rarity of eutrophic deciduous forests in Valday region results probably from strong anthropogenic pressure in the past.

scholarly journals Trophic state of lobelia lakes subjected to strong anthropogenic pressure located close to the Tricity area (northern Poland)

2017 ◽  
Vol 17 (4) ◽  
pp. 195-205
Author(s):  
Maciej Markowski
Keyword(s):  
Anthropogenic Disturbance ◽  
Trophic State ◽  
Trophic Status ◽  
Natural Process ◽  
Anthropogenic Pressure ◽  
Natural Evolution ◽  
Lake Evolution ◽  
Lobelia Lakes ◽  
Leisure And Recreation ◽  
Lake Fertilization

Abstract Intensive and expansive human activity greatly accelerates the natural process of lake evolution. It is assumed that an increase in the rate of lake fertilization (often termed “eutrophication”) is the most common and most serious anthropogenic disturbance occurring in these aquatic geoecosystems. Lobelia lakes, one of the most valuable water bodies, are particularly exposed to this type of pressure. The article presents the trophic state of 13 lobelia lakes, located close to the Tricity area, in the northeastern part of the Kashubian Lakeland, which are not legally protected. These lakes represent different geoecosystems determining the rate of their natural evolution, and are subjected to various forms of anthropopressure (numerous summerhouses, fishing, waterside leisure and recreation). The trophic status of these lakes was assessed on the basis of the Carlson-type indices. The evaluation indicated that six of these lakes were in borderline mesotrophic-eutrophic state, and seven represented a significantly advanced eutrophic state.

scholarly journals Dynamique des peuplements ligneux dans le Parc National de Manda, au sud du Tchad

2019 ◽  
Vol 42.1 ◽  
pp. 7139-7152
Author(s):  
Guiguindibaye MADJIMBE ◽  
Goy SARADOUM ◽  
Touroumgaye GOALBAYE ◽  
Esaïe WAYA ◽  
Jonathan POUNAKOUMNA
Keyword(s):  
National Park ◽  
Basal Area ◽  
Average Density ◽  
Anthropogenic Pressure ◽  
Average Volume ◽  
Specific Composition ◽  
Gradual Evolution ◽  
Standing Timber ◽  
Composition Spécifique ◽  
Structure Des Peuplements

1 RÉSUMÉ La présente étude a pour but d’étude la dynamique des peuplements ligneux dans le Parc National de Manda. Elle vise à déterminer les caractéristiques structurales, la composition spécifique et la régénération des peuplements ligneux. Quatre sites ont été implantés depuis 2012. Nous avons procédé à la caractérisation des peuplements ligneux par des relevés dendrométriques. La flore ligneuse dans l’ensemble des sites est riche de 87 espèces reparties en 56 genres et 22 familles. Les sites 1 et 2 ont des effectifs plus élevés en 2019 comparativement en 2014 et en 2012. Une forte régénération s’est effectuée durant l’année 2019. Contrairement aux sites, 1 et 2, les sites 3 et 4 présentent pour l’année 2019 une forte baisse des effectifs de jeunes plants. Ces jeunes plants sont très sensibles non seulement à la disponibilité des ressources en eau pour franchir la saison sèche mais aussi à l’intensité et à la fréquence de passage des feux. Les résultats ont permis de noter que la densité moyenne entre 2012 et 2014 s’est accrue et à partir de 2014 elle s’est stabilisée. La surface terrière par hectare est, en moyenne de 10,12 m2/ha pour 2012 ; 11,16 m2/ha pour l’année 2014 et de 11, 65 m2/ha pour l’année 2019. Pour l’ensemble des sites expérimentaux, on évalue le volume moyen de bois sur pieds à 12,31 m3/ha en 2012, à 12,46 m3/ha en 2014 et 12,08 m3/ha en 2019. Ces valeurs indiquent que les variations de volume moyen de bois sur pieds sont très faibles pour les sites pris dans leur ensemble. Les résultats obtenus, montrent aussi que 8 espèces se situent dans un processus d’évolution régressive et 4 autres dans un processus d’évolution progressive. La structure des peuplements ligneux n’a pas beaucoup évolué en 8 ans mais, elle apparaît fortement tributaire de la topographie et de la pression anthropique. ABSTRACT Dynamic of the woody populations in the National Park of Manda, to the south of Chad The purpose of this study is to study the dynamics of woody stands in the Manda National Park. It aims to determine the structure, specific composition and regeneration of woody stands. Four sites have been established since 2012. We have characterized the woody stands by dendrometric surveys. The woody flora in all sites is rich in 87 species divided into 56 genera and 22 families. Sites 1 and 2 have higher numbers in 2019 compared to 2014 and 2012. Strong regeneration took place in 2019. Unlike sites 1 and 2, sites 3 and 4 present for the year 2019 a sharp decline in the number of young plants; these seedlings are very sensitive not only to the availability of water resources to cross the dry season but also to the intensity and frequency of fire. The results showed that the average density between 2012 and 2014 increased and from 2014 it stabilized. The basal area per hectare is, on average, 10.12 m2 / ha for 2012; 11.16 m2 / ha for the year 2014 and 11, 65 m2 / ha for the year 2019. For all the experimental sites, the average volume of standing timber is estimated at 12.31 m3/ ha in 2012, 12.46 m3 / ha in 2014 and 12.08 m3 / ha in 2019. These values indicate that variations in average volume of standing timber are very low for sites taken as a whole. The results obtained also show that 8 species are in a process of regressive evolution and 10 in a process of gradual evolution. The structure of woody stands has not changed much in 8 years, but it appears highly dependent on topography and anthropogenic pressure.

scholarly journals Spatial Distribution Patterns of the Hydro-Ecosystems’ Quality Indicators in the Ukrainian Carpathians

2021 ◽  
Vol 4 (1) ◽  
pp. 80-93
Author(s):  
Liudmyla Mykolayivna Arkhypova ◽  
Marta Vasylivna Korchemlyuk ◽  
Oleh Mуkolayovych Mandryk ◽  
Valery Grygorovych Omelchenko ◽  
Yuliya Stanislavivna Stakhmych
Keyword(s):  
Quality Indicators ◽  
Natural Waters ◽  
Statistical Processing ◽  
Distribution Patterns ◽  
Quality Parameters ◽  
Anthropogenic Pressure ◽  
Carpathian Region ◽  
Standard Values ◽  
First Time ◽  
Ecological Standard

This study is devoted to the two major hydro-ecosystems of the Carpathian region in Ukraine, the Dniester and Danube Rivers. For the first time, the patterns of changes in the ecosystems’ quality parameters were established by means of developing functional dependences among the ecological standard values of the composite quality indicators of natural waters and the river length and terrain altitude. Using the statistical processing of the data, the quality monitoring of the upper reaches of Dniester and Danube ecosystems in the Ukrainian Carpathians was conducted for the period from 2001 to 2019. The data on the Composite Potential Quality Indicators standard values was gathered for the heights of the Carpathian region: at 50 m interval for the altitude up to 1,000 m, and at 100 m interval for more than 1,000 m altitude. The acquired dependencies can be used as the territorial background standard values of the ecological indicators of basin ecosystems. It will help to scientifically substantiate the ecologically safe values of the anthropogenic pressure.

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