Anthropocene最新文献_第2页

Natural and anthropogenic processes and landforms in the eastern sector of the Buenos Aires Province, Argentina (from Pleistocene to Anthropocene)

IF 3.3 2区地球科学

Anthropocene Pub Date : 2024-12-16 DOI: 10.1016/j.ancene.2024.100457

Mariel Samanta Luengo , Gabriela D'Amico , Nicole Pommarés , Enrique Fucks

{"title":"Natural and anthropogenic processes and landforms in the eastern sector of the Buenos Aires Province, Argentina (from Pleistocene to Anthropocene)","authors":"Mariel Samanta Luengo , Gabriela D'Amico , Nicole Pommarés , Enrique Fucks","doi":"10.1016/j.ancene.2024.100457","DOIUrl":"10.1016/j.ancene.2024.100457","url":null,"abstract":"<div><div>The aim of this work is to analyze landscape-shaping processes in the Pampean plain, eastern sector of the Buenos Aires province, reconstructing the geomorphic evolution from the Late Pleistocene to the Anthropocene. For this purpose, a geomorphological analysis was carried out through the use of satellite images, topographic maps and field work. In this study, natural and anthropogenic processes are addressed in an integrative manner, considering both temporal and spatial scales. The geomorphic characteristics show the preponderance of coastal and aeolian processes over other exogenous processes. The emergence of two littoral barriers, the Samborombón Barrier (SB) and the Easter Sandy Barrier (ESB), has significantly influenced regional geomorphology, showing evidence of Quaternary sea-level fluctuations. Over time, human settlements were strategically located on elevated landforms of the Pampean plain, rich in resources. Since the late 19th century, human activity has rapidly transformed the landscape, especially altering the hydric system, marshes, beaches, dunes and littoral ridges. These processes also generated human-created landforms, such as channels, quarries, alluvial fans, among others. This study provides a regional context for future research, fostering the formulation of hypotheses to better comprehend the evolving dynamics of these environments.</div></div>","PeriodicalId":56021,"journal":{"name":"Anthropocene","volume":"49 ","pages":"Article 100457"},"PeriodicalIF":3.3,"publicationDate":"2024-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143177077","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Patagonia's Late Holocene lake sediments reveal no major black carbon sources for Antarctica

IF 3.3 2区地球科学

Anthropocene Pub Date : 2024-12-11 DOI: 10.1016/j.ancene.2024.100458

Sandra O. Camara-Brugger , David B. McWethy , Nathan J. Chellman , Oliver Heiri , Andrés Holz , Kyla Zaret , Joseph R. McConnell

{"title":"Patagonia's Late Holocene lake sediments reveal no major black carbon sources for Antarctica","authors":"Sandra O. Camara-Brugger , David B. McWethy , Nathan J. Chellman , Oliver Heiri , Andrés Holz , Kyla Zaret , Joseph R. McConnell","doi":"10.1016/j.ancene.2024.100458","DOIUrl":"10.1016/j.ancene.2024.100458","url":null,"abstract":"<div><div>Black carbon from biomass and fossil fuel burning is an important aerosol in the climate system. Understanding its historical variation is crucial to constrain current anthropogenic and wildfire impacts on the atmosphere. Patagonia was proposed previously as a major source region for the late 13<sup>th</sup> century black carbon increase observed in an ice core from the northern Antarctic Peninsula but not in continental Antarctic ice cores. Here, we reconstruct regional black carbon trends using high-resolution measurements of refractory black carbon (rBC) in two Patagonian lake-sediment cores spanning the last two millennia and compare the results with other records of fire activity in the region. Our new rBC reconstruction, which is consistent with macroscopic charcoal data from the same sites as well as regional charcoal data, indicates low fire activity in this region of Patagonia over the past 2000 years, with no major, long-lasting and systematic increase from the 13<sup>th</sup> century onwards that goes significantly beyond values detected earlier in these records. The consistently low rBC deposition at these sites suggests that Patagonian emissions did not contribute to the observed late 13<sup>th</sup> century rBC increases in ice cores from the Antarctic Peninsula. Moreover, the low amounts of rBC deposition throughout the Industrial Period suggests that Patagonian rBC records primarily reflect emissions from regional biomass burning and not fossil fuel combustion.</div></div>","PeriodicalId":56021,"journal":{"name":"Anthropocene","volume":"49 ","pages":"Article 100458"},"PeriodicalIF":3.3,"publicationDate":"2024-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143177076","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Corrigendum to “20th century climate warming and human disturbance triggered high aquatic production and strong water-column mixing in maar Lake Xiaolongwan, northeastern China” [Anthropocene 47 (2024) 100442]

IF 3.3 2区地球科学

Anthropocene Pub Date : 2024-12-01 DOI: 10.1016/j.ancene.2024.100456

Luyao Tu , Hongpan Xue , Xin Zhou , Xuanqiao Liu , Paul D. Zander , Tao Huang , Lize Meng , Wangyang Kan , Changchun Huang , Martin Grosjean

引用次数: 0

Adapt research to the Anthropocene 使研究适应人类世

IF 3.3 2区地球科学

Anthropocene Pub Date : 2024-10-30 DOI: 10.1016/j.ancene.2024.100455

Stefanie Christmann

引用次数: 0

Rethinking the Anthropocene: Not a time-transgressive event but a sudden rupture on the geologic time scale 反思人类世：不是跨时代事件，而是地质时间尺度上的突然断裂

IF 3.3 2区地球科学

Anthropocene Pub Date : 2024-10-29 DOI: 10.1016/j.ancene.2024.100454

Abhik Chakraborty

{"title":"Rethinking the Anthropocene: Not a time-transgressive event but a sudden rupture on the geologic time scale","authors":"Abhik Chakraborty","doi":"10.1016/j.ancene.2024.100454","DOIUrl":"10.1016/j.ancene.2024.100454","url":null,"abstract":"<div><div>The recent decision by the International Commission on Stratigraphy to reject the Anthropocene as an Epoch has reignited the debate on its definition. Some scholars have argued for interpreting the Anthropocene as an Event with no specific point of onset, but this argument has its shortcomings, including the fact that the term event has multiple connotations. This Viewpoint adds important insight to the ongoing debate by positing that (i) deliberations on the Anthropocene’s definition should not be confined to geological and historical viewpoints and must include ecological insights, and (ii) there is widespread evidence of anthropogenic reconfiguration of the planetary biosphere which translates to an accelerating sixth mass extinction as well as a conspicuous rise in the Human Appropriation of Net Primary Productivity (HANPP) at an unprecedented rate during the past few decades. When considered together with rapid anthropogenic climate change, these trends mark a major departure from previous trends on the geologic timescale, and they clearly show that the planetary biosphere has recently undergone a sudden and abrupt shift into a novel state, which cannot be adequately described by a temporally diffuse, gradual event; and must be conceptualized as a <em>rupture</em>—a geologically sudden major departure from prevalent trends; which in turn justifies the conceptualization of the Anthropocene as a separate chronostratigraphic unit. Understanding the catastrophic nature of the recent anthropogenic impact on the planetary biosphere is crucial for interpreting the Anthropocene and geologists must be cautious not to dilute its magnitude.</div></div>","PeriodicalId":56021,"journal":{"name":"Anthropocene","volume":"48 ","pages":"Article 100454"},"PeriodicalIF":3.3,"publicationDate":"2024-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142560601","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Human-induced landscape modification in the in the last two centuries in the Po delta plain (Northern Italy) 波河三角洲平原（意大利北部）过去两个世纪中人为造成的地貌变化

IF 3.3 2区地球科学

Anthropocene Pub Date : 2024-10-28 DOI: 10.1016/j.ancene.2024.100453

Luigi Bruno , Matteo Meli , Maria Luisa Garberi

{"title":"Human-induced landscape modification in the in the last two centuries in the Po delta plain (Northern Italy)","authors":"Luigi Bruno , Matteo Meli , Maria Luisa Garberi","doi":"10.1016/j.ancene.2024.100453","DOIUrl":"10.1016/j.ancene.2024.100453","url":null,"abstract":"<div><div>Historical maps with high degree of accuracy permit quantitative reconstructions of past land use and land cover (LULC), crucial to assess the impact of human activities on landscape evolution. After georeferencing in a modern reference system, the <em>Carta del Ferrarese</em> commissioned by Napoleon Bonaparte and completed in 1814, has been used to quantify the changes in LULC, occurred in the last two centuries in the Po delta plain. The map depicts a palaeo-landscape dominated by wetlands (49 % of the study area) and agricultural areas (41 %), whereas forests appear already largely depleted (5 %). The <em>Piantata Padana</em>, a traditional agroforestry system with live trees used to support grapevines, is dominant (62 % of the agricultural areas). The comparison with the 2014 LULC map highlights a dramatic reduction (85 %) of wetland areas and the replacement of the <em>Piantata Padana</em> with bare arable lands, with the consequent removal of 4–40 million trees. Soils of areas formerly occupied by wetlands show high organic-carbon content, highlighting the potential of humid areas in carbon sequestration. Land reclaiming, prompted by the introduction of steam pumps, favoured the economic development of the area, but concurred to CO<sub>2</sub> emissions through the oxidation of soil organic substances, energy consumption from pumping stations, and the extensive use of hydrocarbon fuels in agriculture. Although urbanisation is limited in the Po delta plain, this area appears nowadays largely shaped by human activities, with the dominance of lands devoted to agriculture, dissected by a dense network of draining channels. The landscape changes recorded in the last two centuries in the Po coastal plain have been uniquely driven by human activities, like in several coastal plains worldwide.</div></div>","PeriodicalId":56021,"journal":{"name":"Anthropocene","volume":"48 ","pages":"Article 100453"},"PeriodicalIF":3.3,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142560602","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The environmental consequences of rapid urbanization in central Florida reconstructed with high resolution 241Am and 210Pb dating in lake sediments 利用湖泊沉积物中高分辨率 241Am 和 210Pb 测年重建佛罗里达中部快速城市化的环境后果

IF 3.3 2区地球科学

Anthropocene Pub Date : 2024-10-23 DOI: 10.1016/j.ancene.2024.100452

Paul W. Volante , James M. Kaste , Troy Clift , Matthew N. Waters

{"title":"The environmental consequences of rapid urbanization in central Florida reconstructed with high resolution 241Am and 210Pb dating in lake sediments","authors":"Paul W. Volante , James M. Kaste , Troy Clift , Matthew N. Waters","doi":"10.1016/j.ancene.2024.100452","DOIUrl":"10.1016/j.ancene.2024.100452","url":null,"abstract":"<div><div>Throughout the 20th century, Florida was one of the fastest growing states in the US, putting unique environmental stress on the region. Accurately dated lake sediments can provide invaluable records of environmental change that extend beyond monitoring records. Here, we analyze profiles of americium-241 (<sup>241</sup>Am), cesium-137 (<sup>137</sup>Cs), lead (Pb), zinc (Zn), and uranium-series radionuclides in Lake Bonny in Lakeland, Florida. The <sup>241</sup>Am peak is sharp in the sediment profile, while the <sup>137</sup>Cs peak is broader and spread evenly across two layers. The measured <sup>137</sup>Cs inventory of ∼413 Bq/m<sup>2</sup> is less than half of the expected inventory from atmospheric deposition (accounting for decay since deposition), indicating significant losses. The reliability of <sup>137</sup>Cs as a chronological tool can be complicated in environments with low quantities of 2:1 clays and low available potassium (K), characteristic of Florida and the U.S. southeast. Using a piecewise constant rate of supply <sup>210</sup>Pb model verified by <sup>241</sup>Am, we reconstruct sedimentation and chemical change in this lake. Highest sedimentation rates in the lake occur during decades of peak population growth in the mid-20th century. Uranium (U) and radium-226 (<sup>226</sup>Ra) inputs to the lake reach a maximum in the 1960s, consistent with expansion of local phosphate mines and elevated groundwater pumping during that time in response to drought conditions. Total Pb in the sedimentary record captures the rise and fall of the use of leaded gasoline, but Zn inputs to the lake remain nearly two orders of magnitude above background levels in the last decade. Our high-resolution chronology of the lake reveals regional impacts on water and lake quality in central Florida during a period of rapid population growth.</div></div>","PeriodicalId":56021,"journal":{"name":"Anthropocene","volume":"48 ","pages":"Article 100452"},"PeriodicalIF":3.3,"publicationDate":"2024-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142561172","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Anthropocene on the eastern margin of the Tibetan Plateau: A Holocene perspective from multiple sedimentary records 青藏高原东缘的人类世：从多种沉积记录透视全新世

IF 3.3 2区地球科学

Anthropocene Pub Date : 2024-10-09 DOI: 10.1016/j.ancene.2024.100451

Duo Wu , Lili Pan , Weifeng Kong , Fahu Chen

{"title":"Anthropocene on the eastern margin of the Tibetan Plateau: A Holocene perspective from multiple sedimentary records","authors":"Duo Wu , Lili Pan , Weifeng Kong , Fahu Chen","doi":"10.1016/j.ancene.2024.100451","DOIUrl":"10.1016/j.ancene.2024.100451","url":null,"abstract":"<div><div>The Anthropocene is described as the period since ∼1950 when human activities modified the boundary conditions of the Earth system and became the dominant driver of environmental changes. However, since the term ‘Anthropocene’ was proposed, there has been a debate regarding its start date, and several workers are even opposed to its formalization. A prerequisite for clarifying the debate on the start date of the Anthropocene is a historical perspective, which can help determine the form, degree, rate, and trajectory of human influences on the environment. Here, we focus on the Paleoanthropocene as recorded on the eastern margin of the Tibetan Plateau. We propose that human activity has had a profound impact on the natural environment of the region during the Holocene owing to the combined impacts of alpine pastoralism, land-cover change caused by deforestation, heavy metal pollution of lakes, agricultural soil erosion, and lake eutrophication caused by industry and agriculture. It is apparent that the terms ‘Anthropocene’ and ‘Anthropocene Science’ have far-reaching meanings, offering great opportunities for interdisciplinary integration and encouraging us to think more deeply about the sustainable development of human society, despite the fact that the impacts of humans and their environmental footprint in geological archives may be transient.</div></div>","PeriodicalId":56021,"journal":{"name":"Anthropocene","volume":"48 ","pages":"Article 100451"},"PeriodicalIF":3.3,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142441988","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Toxicogenomics of persistent organic pollutants: Potential impacts on biodiversity and infectious diseases 持久性有机污染物的毒物基因组学：对生物多样性和传染病的潜在影响

IF 3.3 2区地球科学

Anthropocene Pub Date : 2024-09-24 DOI: 10.1016/j.ancene.2024.100450

Marina Ziliotto , José Artur Bogo Chies , Joel Henrique Ellwanger

{"title":"Toxicogenomics of persistent organic pollutants: Potential impacts on biodiversity and infectious diseases","authors":"Marina Ziliotto , José Artur Bogo Chies , Joel Henrique Ellwanger","doi":"10.1016/j.ancene.2024.100450","DOIUrl":"10.1016/j.ancene.2024.100450","url":null,"abstract":"<div><div>Pollution is recognized as one of the main causes of biodiversity loss. Growing evidence also points to pollution as an important risk factor for the emergence or reemergence of infectious diseases that affect humans and other animals. However, the mechanisms and pathways that explain how pollution erodes biodiversity and favors infectious diseases are poorly explored. Using the Dirty Dozen (aldrin, chlordane, dichlorodiphenyl trichloroethane - DDT, dieldrin, dioxins, endrin, furans, heptachlor, hexachlorobenzene, mirex, polychlorinated biphenyls - PCBs, and toxaphene) persistent organic pollutants (POPs) as a study model, in this article we demonstrate through toxicogenomic approaches that these POPs affect thousands of genes involved in the immune system and metabolic processes, among other biological pathways (<em>n</em>=19,086 genes from multiple organisms). One of the major findings indicate that POPs interact with hormone receptor genes prominently (i.e., <em>Esr1</em>, <em>Nr1i2</em> and <em>Ar</em> genes). This finding highlights the activity of these pollutants as hormonal disruptors, with potentially deleterious consequences for the metabolism and reproduction of a wide range of species. These pollutants also have an important genotoxic activity, contributing to genomic instability and other related consequences. In summary, disturbances in the immune system can favor infection and the spread of pathogens, and changes in metabolism and genotoxic effects triggered by pollutants in multiple body systems can reduce fitness, harming the species’ survival in natural environments. The results of this exploratory toxicogenomic analysis represent a new piece in the puzzle that increasingly points to pollution as a major risk factor for both biodiversity loss and emerging infectious diseases.</div></div>","PeriodicalId":56021,"journal":{"name":"Anthropocene","volume":"48 ","pages":"Article 100450"},"PeriodicalIF":3.3,"publicationDate":"2024-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142322246","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Long-term changes of agricultural land over the last century in Romania. The showcase of Romanian plain 上世纪罗马尼亚农业用地的长期变化。罗马尼亚平原的展示

IF 3.3 2区地球科学

Anthropocene Pub Date : 2024-09-14 DOI: 10.1016/j.ancene.2024.100449

Elena-Ana Urşanu (Popovici) , Ines Grigorescu , Cristina Dumitrică , Gheorghe Kucsicsa , Bianca Mitrică , Irena Roznovietchi (Mocanu) , Monica Dumitraşcu , Cătălin Ciubuc

{"title":"Long-term changes of agricultural land over the last century in Romania. The showcase of Romanian plain","authors":"Elena-Ana Urşanu (Popovici) , Ines Grigorescu , Cristina Dumitrică , Gheorghe Kucsicsa , Bianca Mitrică , Irena Roznovietchi (Mocanu) , Monica Dumitraşcu , Cătălin Ciubuc","doi":"10.1016/j.ancene.2024.100449","DOIUrl":"10.1016/j.ancene.2024.100449","url":null,"abstract":"<div><p>The current paper is a space-time analysis of agricultural land transitions in the Romanian Plain, which has been significantly impacted during the past century by the fundamental structural and functional transformations. Five maps, derived from historical cartographic materials and the recent CORINE Land Cover databases, were spatially analysed using a transition matrix procedure. The aim was to identify and measure the magnitude of the main land use/cover change flows related to agricultural lands. Furthermore, several underlying factors of the spatial and functional transformations have been discussed so as to understand the evolution of the historical agricultural lands over time. The results show that the most significant changes occurred between 1912 and 1970, when 38 % of the Romanian Plain’s surface underwent transformations, with notable regional differences. The analysis of the change flows in relation to the underlying factors was instrumental in explaining the land processes, an approach that can be used to understand future landscape transformations.</p></div>","PeriodicalId":56021,"journal":{"name":"Anthropocene","volume":"48 ","pages":"Article 100449"},"PeriodicalIF":3.3,"publicationDate":"2024-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142243089","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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