Polish Polar Research最新文献_第9页

Editorial: Processes controlling development of periglacial and paraglacial landscapes in rapidly changing polar regions: Part 1 编辑:在快速变化的极地地区控制冰周和冰旁景观发展的过程:第1部分

IF 1.3 4区地球科学

Polish Polar Research Pub Date : 2023-05-22 DOI: 10.24425/ppr.2023.145438

引用次数: 0

Morphology and properties of permafrost-affected soils under different tundra vegetation in central Spitsbergen 斯匹次卑尔根中部不同苔原植被下冻土影响土壤的形态和特性

IF 1.3 4区地球科学

Polish Polar Research Pub Date : 2023-03-22 DOI: 10.24425/ppr.2022.143317

{"title":"Morphology and properties of permafrost-affected soils under different tundra vegetation in central Spitsbergen","authors":"","doi":"10.24425/ppr.2022.143317","DOIUrl":"https://doi.org/10.24425/ppr.2022.143317","url":null,"abstract":": The main aim of this study was to determine the morphology, physical, and chemical properties of permafrost-affected soils under different types of tundra in the central part of Spitsbergen. This is a preliminary part of detailed studies focused on the relationship between tundra vegetation and permafrost-affected soils in the Spitsbergen. The obtained results indicate that all the studied soils represent an early stage of formation and the main soil-forming process present in these soils is cryoturbation. Most of the studied soils are shallow and contain a high content of coarse rock fragments. Tundra vegetation type plays controlling role in the development and structure of surface soil horizons. All the studied soils are characterized by loamy texture and acidic or slightly acidic reaction, and these properties are not very different under various tundra vegetation types. The contents of soil organic matter are strongly dependent on the type of tundra vegetation. The highest soil organic matter content occurs at sites with well-developed vegetation such as heath and wet moss tundra. The high carbon-to-nitrogen ratio for the surface soil horizons of the majority of the studied soils indicates that organic matter is poorly decomposed under all the studied tundra vegetation types. This is most likely related to low activity of soil microorganisms in the harsh High Arctic environment. However, the lowest carbon-to-nitrogen ratio was noted for surface soil horizons at sites covered with Arctic meadow, and this indicates that there occur the optimum conditions for soil organic matter decomposition.","PeriodicalId":49682,"journal":{"name":"Polish Polar Research","volume":" ","pages":""},"PeriodicalIF":1.3,"publicationDate":"2023-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49472533","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

New record and new species of lichenized fungal genus Candelariella Müll. Arg. in Antarctica 地衣真菌Candelariella Müll属的新记录和新种。Arg。在南极洲

IF 1.3 4区地球科学

Polish Polar Research Pub Date : 2023-03-22 DOI: 10.24425/ppr.2022.140370

{"title":"New record and new species of lichenized fungal genus Candelariella Müll. Arg. in Antarctica","authors":"","doi":"10.24425/ppr.2022.140370","DOIUrl":"https://doi.org/10.24425/ppr.2022.140370","url":null,"abstract":": Previously, only three Candelariella species were known from Antarctica: C. aurella , C. flava and C. vitellina . After morphologically and phylogenetically examining our collections on soil from James Ross Island, located in the north-east Antarctic Peninsula region, and Horseshoe Island, a small rocky island in Bourgeois Fjord, Marguerite Bay in the south-west Antarctic Peninsula, we describe the lichen species Candelariella ruzgarii as new to science. Sequences of the nrITS, mtSSU and RPB1 gene regions of the new species were amplified and revealed that the phylogenetic position of the new species is in the C. aurella group, which is characterised by 8-spored asci and ± granular thalli. Candelariella ruzgarii is phylogenetically most closely related to C. aurella s. lat. but differs mainly in ecology as the new species grows on soil or on terricolous lichens, whereas the latter species grows on calcareous rocks, rarely on wood. Morphologically, C. ruzgarii is very similar to C. aggregata , a Northern Hemisphere species that grows on mosses and plant debris. Apart from the different phylogenetical position, C. ruzgarii has a thicker and sometimes slightly crenulated thalline margin and somewhat shorter ascospores than C. aggregata . We also report C. plumbea for the first time from Antarctica, a species with a thick and grey thallus that was previously known from Europe and Asia.","PeriodicalId":49682,"journal":{"name":"Polish Polar Research","volume":" ","pages":""},"PeriodicalIF":1.3,"publicationDate":"2023-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47289826","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Development, integrative study and research prospects of Deschampsia antarctica collection 南极德尚采集的发展、综合研究及研究前景

IF 1.3 4区地球科学

Polish Polar Research Pub Date : 2023-03-22 DOI: 10.24425/ppr.2023.144537

引用次数: 0

Changes in thermal indices on Herschel Island (Qikiqtaruk), Canada between the periods 1899–1905 and 2008–2014 1899-1905年和2008-2014年间加拿大赫歇尔岛(Qikiqtaruk)热指数的变化

IF 1.3 4区地球科学

Polish Polar Research Pub Date : 2023-03-22 DOI: 10.24425/ppr.2023.144538

引用次数: 0

Climatic conditions at Arctowski Station (King George Island, West Antarctica) in 2013–2017 against the background of regional changes 区域变化背景下2013-2017年南极西部乔治王岛Arctowski站气候条件

IF 1.3 4区地球科学

Polish Polar Research Pub Date : 2019-01-01 DOI: 10.24425/PPR.2019.126345

J. Plenzler, T. Budzik, D. Puczko, R. Bialik

{"title":"Climatic conditions at Arctowski Station (King George Island, West Antarctica) in 2013–2017 against the background of regional changes","authors":"J. Plenzler, T. Budzik, D. Puczko, R. Bialik","doi":"10.24425/PPR.2019.126345","DOIUrl":"https://doi.org/10.24425/PPR.2019.126345","url":null,"abstract":"This paper provides an overview of the results of research on changes in ground temperature down to 50 cm depth, on the Kaffiøyra Plain, Spitsbergen in the summer seasons. To achieve this, measurement data were analysed from three different ecotopes (CALM Site P2A, P2B and P2C) – a beach, a moraine and tundra – collected during 22 polar expeditions between 1975 and 2014. To ensure comparability, data sets for the common period from 21 July to 31 August (referred to as the “summer season” further in the text) were analysed. The greatest influence on temperature across the inves− tigated ground layers comes from air temperature (correlation coefficients ranging from 0.61 to 0.84). For the purpose of the analysis of the changes in ground temperature in the years 1975–2014, missing data for certain summer seasons were reconstructed on the ba− sis of similar data from a meteorological station at Ny−Ålesund. The ground temperature at the Beach site demonstrated a statistically−significant growing trend: at depths from 1 to 10 cm the temperature increased by 0.27–0.28 C per decade, and from 20 to 50 cm by as much as 0.30 C per decade. On the Kaffiøyra Plain, the North Atlantic Oscillation (NAO) has a greater influence on the ground and air temperature than the Arctic Oscilla− tion (AO).","PeriodicalId":49682,"journal":{"name":"Polish Polar Research","volume":"1 1","pages":"1-27"},"PeriodicalIF":1.3,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68952674","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 14

Trash on Arctic beach: Coastal pollution along Calypsostranda, Bellsund, Svalbard 北极海滩上的垃圾:沿着Calypsostranda, Bellsund, Svalbard的海岸污染

IF 1.3 4区地球科学

Polish Polar Research Pub Date : 2018-06-15 DOI: 10.24425/118746

M. Jaskólski, Łukasz Pawłowski, M. Strzelecki, P. Zagórski, T. Lane

引用次数: 10

Wave characteristics and wave energy assessment in the Barents Sea 巴伦支海波浪特征和波能评价

IF 1.3 4区地球科学

Polish Polar Research Pub Date : 2018-01-01 DOI: 10.24425/118742

C. Duan, Zhifeng Wang, S. Dong

引用次数: 2

Freshwater diatoms of the Ecology Glacier foreland, King George Island, South Shetland Islands 南设得兰群岛乔治国王岛生态冰川前陆的淡水硅藻

IF 1.3 4区地球科学

Polish Polar Research Pub Date : 2018-01-01 DOI: 10.24425/118753

Natalia KOCHMAN-KĘDZIORA, T. Noga, M. Olech, B. Vijver

引用次数: 4

Assessment of the molecular cytogenetic, morphometric and biochemical parameters of Deschampsia antarctica from its southern range limit in maritime Antarctic 南极海洋南缘南极德尚蚤的分子细胞遗传学、形态计量学和生化参数评价

IF 1.3 4区地球科学

Polish Polar Research Pub Date : 2018-01-01 DOI: 10.24425/118759

D. Navrotska, Igor Andreev, A. Betekhtin, Magdalena Rojek, I. Parnikoza, G. Myryuta, O. Poronnik, N. Miryuta, Joanna SZYMANOWSKA-PU, Ka, V. Grakhov, R. Ivannikov, R. Hasterok, V. Kunakh

{"title":"Assessment of the molecular cytogenetic, morphometric and biochemical parameters of Deschampsia antarctica from its southern range limit in maritime Antarctic","authors":"D. Navrotska, Igor Andreev, A. Betekhtin, Magdalena Rojek, I. Parnikoza, G. Myryuta, O. Poronnik, N. Miryuta, Joanna SZYMANOWSKA-PU, Ka, V. Grakhov, R. Ivannikov, R. Hasterok, V. Kunakh","doi":"10.24425/118759","DOIUrl":"https://doi.org/10.24425/118759","url":null,"abstract":"Different chromosomal forms of Deschampsia antarctica Desv. (Poaceae), including diploids (2n=26), hypotriploid (2n=36–38) and a genotype with an occasional occurrence of B chromosome (2n=26+0-1B) that originated from southern marginal populations (Argentine Islands region, maritime Antarctic) were studied using molecular cytogenetic, morphometric and biochemical methods. FISH analysis revealed variations in the number of rDNA sites between the diploid and hypotriploid plants. The genome size varied among plants with a different chromosome number and was on average 10.88 pg/2C for diploids and 16.46 pg/2C for hypotriploid. The mean values of leaf length of plants grown in vitro varied within a range of 5.23–9.56 cm. The total phenolic content ranged from 51.10 to 105.40 mg/g, and the total flavonoid content ranged from 1.22 to 4.67 mg/g. The amount of phenolic compounds did not differ significantly between the genotypes, while a variation in the flavonoid content was observed for L59 and DAR12. The diploids did not differ significantly among each other in terms of the number of rDNA loci, but differed slightly in their genome size. The individuals of DAR12 carrying B chromosome were similar to other diploids in terms of their genome size, but Daria Navrotska et al. 526 statistically differed in leaf length. The hypotriploid had both a greater number of rDNA sites and a larger genome size. No statistical correlations were observed between the genome size and leaf length or genome size and accumulation of phenolic and flavonoid compounds. The results of this study suggest that D. antarctica plants from the southern edge of the range are characterised by the heterogeneity of the studied parameters.","PeriodicalId":49682,"journal":{"name":"Polish Polar Research","volume":"1 1","pages":"525–548-525–548"},"PeriodicalIF":1.3,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68941010","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 9