scholarly journals Dvije tisuće godina okolišnih promjena na području središnje Hrvatske – vegetacija, požari i hidrologija utjecani klimatskim prilikama i ljudskim pritiskom

2020 ◽  
Vol 37 ◽  
pp. 117-164
Author(s):  
Dario Hruševar ◽  
Nikolina Ilijanić ◽  
Božena Mitić ◽  
Martina Weber ◽  
Katarina Husnjak Malovec ◽  
...  

This paper presents the paleoenvironmental reconstruction of a mire sequence near the village Blatuša, with a focus on changes in vegetation composition, hydrological regime and fire history of the Banovina/Kordun area during the last two millennia. For this purpose, pollen, non-pollen and charcoal analysis were done. By the application of CONISS statistical analysis three different pollen assemblage (sub)zones could have been distinguished: a dominance of alder-beech/oaks from the 2nd to the middle of the 7th century, followed by a prevalence of grasses-beech/oaks till the end of the 13th century. Finally, an assemblage of grasses-hornbeam/oaks populated the area from the 14th to the beginning of the 20th century. The high abundance of peat mosses (Sphagnum) from the 11th to the end of the 14th century must indicate increased precipitation and higher frequencies of rainfall during the Medieval Climate Anomaly. Transition from an ombrotrophic to minerotrophic phase of mire evolution during the Little Ice Age is caused by changing in moisture level, with somewhat wetter period prevailing till the middle of the 17th century followed by drier conditions till the beginning of the 20th century. Although cereal pollen grains first appear from the layers dated to the late 14th century and the proportion of secondary anthropogenic indicators were low during the entire Middle Ages, a large number of charcoal particles suggests stronger anthropogenic activity than indicated by observed changes in vegetation composition. Still, a sharp rise of non-arboreal pollen during the Migration period most likely reflect a general natural succession process on mire surface than persuable proof of Avaric-Slavic impact on vegetation. Direct anthropogenic pressure indicated by weeds and cereal pollen can be tracked from the Late Middle Ages onwards.

2016 ◽  
Vol 13 (21) ◽  
pp. 5965-5981 ◽  
Author(s):  
Jelena Vidović ◽  
Rafał Nawrot ◽  
Ivo Gallmetzer ◽  
Alexandra Haselmair ◽  
Adam Tomašových ◽  
...  

Abstract. Shallow and sheltered marine embayments in urbanized areas are prone to the accumulation of pollutants, but little is known about the historical baselines of such marine ecosystems. Here we study foraminiferal assemblages, geochemical proxies and sedimentological data from 1.6 m long sediment cores to uncover  ∼  500 years of anthropogenic pressure from mining, port and industrial activities in the Gulf of Trieste, Italy. From 1600 to 1900 AD, normalized element concentrations and foraminiferal assemblages point to negligible effects of agricultural activities. The only significant anthropogenic activity during this period was mercury mining in the hinterlands of the gulf, releasing high amounts of mercury into the bay and significantly exceeding the standards on the effects of trace elements on benthic organisms. Nonetheless, the fluctuations in the concentrations of mercury do not correlate with changes in the composition and diversity of foraminiferal assemblages due to its non-bioavailability. Intensified agricultural and maricultural activities in the first half of the 20th century caused slight nutrient enrichment and a minor increase in foraminiferal diversity. Intensified port and industrial activities in the second half of 20th century increased the normalized trace element concentrations and persistent organic pollutants (PAH, PCB) in the topmost part of the core. This increase caused only minor changes in the foraminiferal community because foraminifera in Panzano Bay have a long history of adaptation to elevated trace element concentrations. Our study underlines the importance of using an integrated, multidisciplinary approach in reconstructing the history of environmental and anthropogenic changes in marine systems. Given the prolonged human impacts in coastal areas like the Gulf of Trieste, such long-term baseline data are crucial for interpreting the present state of marine ecosystems.


The Holocene ◽  
2017 ◽  
Vol 27 (8) ◽  
pp. 1103-1114 ◽  
Author(s):  
Matthias Thienemann ◽  
Alessia Masi ◽  
Stephanie Kusch ◽  
Laura Sadori ◽  
Stephan John ◽  
...  

In this study, we present lipid biomarker and palynological data for a sediment core from Lake Dojran (Macedonia/Greece), which covers the entire Holocene period. We analyzed vascular plant-derived n-alkanes, combustion-derived polycyclic aromatic hydrocarbons (PAHs), fecal steroids, and bacterial and archaeal glycerol dialkyl glycerol tetraether (GDGT) lipids in concert with microcharcoal and pollen assemblages to reconstruct climatic, environmental, and human impact in the Dojran catchment and the greater Dojran area. Overall, our results suggest a relationship between anthropogenic activity and environmental/climatic change since increased human impact corresponds to phases of higher humidity and high lake levels at Lake Dojran. During the early Holocene, the record reveals increasing temperatures and humidity and concurrent increasing vegetation cover and runoff/soil erosion, respectively. Following a thermal maximum during the middle early Holocene, temperatures decrease gradually until present. The middle-Holocene at Lake Dojran is characterized by relatively stable environmental conditions followed by greater climatic instability and strong anthropogenic overprint during the late-Holocene. The fecal stanol record reveals phases of increased human impact during the early Bronze Age, the late Bonze/early Iron Age, and the Middle Ages. A phase of low stanol and PAH concentrations from the late Iron Age until the early Middle Ages is either related to ecosystem changes and/or changes in settlement pattern since concurrent pollen data indicate intensified land use. Human impact re-intensified during the Middle Ages with some variability probably related to climatic variations of the ‘Medieval Warm Period’ and the ‘Little Ice Age’.


2016 ◽  
Author(s):  
Jelena Vidović ◽  
Rafał Nawrot ◽  
Ivo Gallmetzer ◽  
Alexandra Haselmair ◽  
Adam Tomašových ◽  
...  

Abstract. Shallow and sheltered marine embayments in urbanized areas are prone to the accumulation of pollutants, but little is known about the historical baselines of such marine ecosystems. Here we study foraminiferal assemblages, geochemical proxies and sedimentological data from 1.6 m long sediment cores to uncover ~ 400 years of anthropogenic pressure from mining, port and industrial zones in the Gulf of Trieste, Italy. From 1600 to 1900 AD, element concentrations and foraminiferal assemblages point to negligible effects of agricultural activities. The only significant anthropogenic activity during this period is mercury mining in the hinterlands of the gulf, releasing high amounts of mercury into the bay and significantly exceeding today's Italian sediment quality guidelines (SQG) and the standards on the effects of trace elements to benthic organisms (ERL and ERM). Nonetheless, the fluctuations in the concentrations of mercury do not correlate with changes in the composition and diversity of foraminiferal assemblages due to its nonbioavailability. Intensified agricultural and maricultural activities in the first half of the 20th century caused slight nutrient enrichment and a minor increase in foraminiferal diversity. Intensified port and industrial activities in the second half of 20th century increased the normalised trace element concentrations and persistent organic pollutants (PAH, PCB) in the topmost part of the core, with solely Ni exceeding Italian SQG, ERL and ERM. This increase caused only minor changes in the foraminiferal community because foraminifera in Panzano Bay have a long history of adaptation to naturally elevated trace element concentrations. Our study underlines the importance of using an integrated, multidisciplinary approach in reconstructing the history of environmental and anthropogenic changes in marine systems. Given the prolonged human impacts in coastal areas like the Gulf of Trieste, such long term baseline data are crucial for interpreting the present state of marine ecosystems.


Author(s):  
E. Yu. Goncharov ◽  
◽  
S. E. Malykh ◽  

The article focuses on the attribution of one gold and two copper coins discovered by the Russian Archaeological Mission of the Institute of Oriental Studies RAS in the ancient Egyptian necropolis of Giza. Coins come from mixed fillings of the burial shafts of the Ancient Egyptian rock-cut tombs of the second half of the 3rd millennium B.C. According to the archaeological context, the coins belong to the stages of the destruction of ancient burials that took place during the Middle Ages and Modern times. One of the coins is a Mamluk fals dating back to the first half of the 14th century A.D., the other two belong to the 1830s — the Ottoman period in Egypt, and are attributed as gold a buchuk hayriye and its copper imitation. Coins are rare for the ancient necropolis and are mainly limited to specimens of the 19th–20th centuries. In general, taking into account the numerous finds of other objects — fragments of ceramic, porcelain and glass utensils, metal ware, glass and copper decorations, we can talk about the dynamic nature of human activity in the ancient Egyptian cemetery in the 2nd millennium A.D. Egyptians and European travelers used the ancient rock-cut tombs as permanent habitats or temporary sites, leaving material traces of their stay.


Author(s):  
Naja Mikkelsen ◽  
Antoon Kuijpers ◽  
Susanne Lassen ◽  
Jesper Vedel

NOTE: This article was published in a former series of GEUS Bulletin. Please use the original series name when citing this article, for example: Mikkelsen, N., Kuijpers, A., Lassen, S., & Vedel, J. (2001). Marine and terrestrial investigations in the Norse Eastern Settlement, South Greenland. Geology of Greenland Survey Bulletin, 189, 65-69. https://doi.org/10.34194/ggub.v189.5159 _______________ During the Middle Ages the Norse settlements in Greenland were the most northerly outpost of European Christianity and civilisation in the Northern Hemisphere. The climate was relatively stable and mild around A.D. 985 when Eric the Red founded the Eastern Settlement in the fjords of South Greenland. The Norse lived in Greenland for almost 500 years, but disappeared in the 14th century. Letters in Iceland report on a Norse marriage in A.D. 1408 in Hvalsey church of the Eastern Settlement, but after this account all written sources remain silent. Although there have been numerous studies and much speculation, the fate of the Norse settlements in Greenland remains an essentially unsolved question.


2021 ◽  
pp. 1-15
Author(s):  
Christopher S. Cooper ◽  
David F. Porinchu ◽  
Scott A. Reinemann ◽  
Bryan G. Mark ◽  
James Q. DeGrand

Abstract Analyses of macroscopic charcoal, sediment geochemistry (%C, %N, C/N, δ13C, δ15N), and fossil pollen were conducted on a sediment core recovered from Stella Lake, Nevada, establishing a 2000 year record of fire history and vegetation change for the Great Basin. Charcoal accumulation rates (CHAR) indicate that fire activity, which was minimal from the beginning of the first millennium to AD 750, increased slightly at the onset of the Medieval Climate Anomaly (MCA). Observed changes in catchment vegetation were driven by hydroclimate variability during the early MCA. Two notable increases in CHAR, which occurred during the Little Ice Age (LIA), were identified as major fire events within the catchment. Increased C/N, enriched δ15N, and depleted δ13C values correspond with these events, providing additional evidence for the occurrence of catchment-scale fire events during the late fifteenth and late sixteenth centuries. Shifts in the vegetation community composition and structure accompanied these fires, with Pinus and Picea decreasing in relative abundance and Poaceae increasing in relative abundance following the fire events. During the LIA, the vegetation change and lacustrine geochemical response was most directly influenced by the occurrence of catchment-scale fires, not regional hydroclimate.


Author(s):  
Irene Fosi

AbstractThe article examines the topics relating to the early modern period covered by the journal „Quellen und Forschungen aus italienischen Archiven und Bibliotheken“ in the hundred volumes since its first publication. Thanks to the index (1898–1995), published in 1997 and the availability online on the website perpectivia.net (since 1958), it is possible to identify constants and changes in historiographical interests. Initially, the focus was on the publication of sources in the Vatican Secret Archive (now the Vatican Apostolic Archive) relating to the history of Germany. The topics covered later gradually broadened to include the history of the Papacy, the social composition of the Curia and the Papal court and Papal diplomacy with a specific focus on nunciatures, among others. Within a lively historiographical context, connected to historical events in Germany in the 20th century, attention to themes and sources relating to the Middle Ages continues to predominate with respect to topics connected to the early modern period.


2018 ◽  
Vol 136 (4) ◽  
pp. 223-238 ◽  
Author(s):  
Francis Young

St Edmund, king and martyr (an Anglo-Saxon king martyred by the Vikings in 869) was one of the most venerated English saints in Ireland from the 12th century. In Dublin, St Edmund had his own chapel in Christ Church Cathedral and a guild, while Athassel Priory in County Tipperary claimed to possess a miraculous image of the saint. In the late 14th century the coat of arms ascribed to St Edmund became the emblem of the king of England’s lordship of Ireland, and the name Edmund (or its Irish equivalent Éamon) was widespread in the country by the end of the Middle Ages. This article argues that the cult of St Edmund, the traditional patron saint of the English people, served to reassure the English of Ireland of their Englishness, and challenges the idea that St Edmund was introduced to Ireland as a heavenly patron of the Anglo-Norman conquest.


2018 ◽  
Author(s):  
Antoni Grabowski

German historians long assumed that the German Kingdom was created with Henry the Fowler's coronation in 919. The reigns of both Henry the Fowler, and his son Otto the Great, were studied and researched mainly through Widukind of Corvey's chronicle Res Gestae Saxonicae. There was one source on Ottonian times that was curiously absent from most of the serious research: Liudprand of Cremona's Antapodosis. The study of this chronicle leads to a reappraisal of the tenth century in Western Europe showing how mythology of the dynasty was constructed. By looking at the later reception (through later Middle Ages and then on 19th and 20th century historiography) the author showcases the longevity of Ottonian myths and the ideological expressions of the tenth century storytellers.


2018 ◽  
Vol 10 (1) ◽  
pp. 51
Author(s):  
Yeni Mulyani Supriatin

Penelitian ini bertujuan mengungkap peristiwa Perang Bubat yang terjadi pada abad ke-14 atau tahun 1357 M dan resepsi sastranya. Masalah yang dibahas adalah bagaimana latar belakang terjadinya Perang Bubat, reaksi, dan tanggapannya. Teori yang digunakan adalah resepsi sastra. Metode untuk pengumpulan data adalah kualitatif dengan menerapkan prinsip resepsi sastra. Hasil penelitian menggambarkan bahwa terjadinya Perang Bubat adalah Raja Sunda tidak tunduk pada kehendak Gajah Mada dan Gajah Mada ingin menyatukan Nusantara. Resepsi sastra terhadap Perang Bubat dapat dikelompokkan menjadi 3, yaitu resepsi dari aspek kesejarahannya, resepsi pengaruhnya terhadap penciptaan karya baru, dan resepsi terhadap struktur sastra.  Simpulan penelitian ini adalah peristiwa Bubat diresepsi setelah dua abad berlalu, yaitu pada abad ke-16  dan peristiwa tersebut diresepsi ulang pada abad ke-20-an. Hasil resepsi sastra  dari abad ke-18 sampai dengan abad ke-20 cukup beragam. Keberagaman resepsi itu menunjukkan bahwa terdapat perbedaan horizon harapan pembaca.  This study aims to reveal the events of the Bubat War that occurred in the 14th century or the year 1357 AD and literary receptions that emerged after the incident occurred. The issue discussed is how the background of the Bubat War and the reactions and responses to the event through literary receptions. The theory used in analyzing data is literary receptions. The method used for data collection is qualitative by applying the principle of literary receptions. The results of this study illustrate that the background of the Bubat War have two versions and both controversial, the first version because the King of Sunda entourage do not obey to the will of Gajah Mada, on the other hand, the second version is that Gajah Mada tactics in unifying the archipelago while the Kingdom of Sunda is a state that has not been submitted. Literary receptions to the War of Bubat can be grouped into three, they are the reception of its historical aspect, the reception of its influence on the creation of new works, and the reception of the literary structure. The conclusion of this research is  Bubat event was perceived after two centuries passed, in the 16th century and the event was redrawn in the 20th century. Results of literary receptions in the 18th century until the 20th century quite diverse. The diversity of the receptions shows the difference in the horizon of readers' expectations.    


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