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A 14,000 year peatland record of environmental change in the southern Gutland region, Luxembourg
The Holocene ( IF 2.4 ) Pub Date : 2021-02-17 , DOI: 10.1177/0959683621994645
Karsten Schittek 1 , Lelaina Teichert 2 , Katrin Geiger 1 , Klaus-Holger Knorr 2 , Simone Schneider 3, 4
Affiliation  

A Late Pleistocene/Holocene paleoenvironmental record was obtained from the Rouer peatland (5°54′E, 49°45′N; 270 m a.s.l.), located in the Gutland area of southern Luxembourg. A total of six sediment samples were AMS radiocarbon-dated to obtain an age-depth model. XRF analyses and analyses of geochemical proxies of organic matter (TOC, TN, δ13C, δ15N) were conducted to identify major paleoenvironmental changes in the record. Pollen analysis reveals insights into the vegetation history throughout the last 14,000 cal. yr BP. The record offers unique insights into the evolution of local organic sediment/peat accumulation, as well as into the environmental history of the Gutland region and beyond. The accumulation of organic sediment and peat started at about 13,800 cal. yr BP before present. Until about 6000 cal. yr BP, periods of apparently stable climatic conditions had been interrupted repeatedly by pronounced episodes with increased input of minerogenic matter into the peat matrix (12,700–11,800 cal. yr BP; 11,500–11,300 cal. yr BP; 11,100–10,800 cal. yr BP; 9300 cal. yr BP; 8200 cal. yr BP), indicated by sudden increases of Ti/coh values. After 6000 cal. yr BP, environmental conditions stabilized. Between 4200 and 2800 cal. yr BP, during the Bronze Age, changes in the pollen spectrum indicate an increasing clearance of woodlands. Since the Roman period, an ongoing intensification of grassland farming and agriculture is evidenced. Lowest tree species abundances are witnessed during the Middle Ages. The Modern Era is characterized by enhanced sediment input due to soil erosion. In short, this record complements the Late Pleistocene/Holocene climatic history of the Gutland area and demonstrates that fen peat deposits can be valuable high-resolution paleoclimate archives.



中文翻译:

卢森堡南部古特兰地区14,000年的泥炭地环境变化记录

从位于卢森堡南部古特兰地区的鲁尔泥炭地(5°54′E,49°45′N; 270 m asl)获得了晚更新世/全新世古环境记录。总共对6个沉积物样品进行了AMS放射性碳定年,以获得一个年龄深度模型。XRF分析和有机质(TOC,TN地球化学替代的分析,δ 13 C,δ 15进行N)以识别记录中的主要古环境变化。花粉分析揭示了过去14,000 cal中植被历史的见解。年BP。该记录为当地有机沉积物/豌豆积累的演变以及古特兰地区及其他地区的环境历史提供了独特的见解。有机沉积物和泥炭的积累始于约13,800卡路里。yr之前的BP。直到大约6000卡路里。在BP时期,明显的事件反复中断了明显稳定的气候条件,向泥炭基质中增加了成矿物质输入(12,700–11,800 cal。yr BP; 11,500–11,300 cal。yr BP; 11,100–10,800 yr BP ; 9300 cal。yr BP; 8200 cal。yr BP),以Ti / coh值的突然增加表示。经过6000卡路里 年BP 环境条件稳定。在4200和2800之间 BP,在青铜时代,花粉光谱的变化表明林地的清除率增加。自罗马时代以来,草原耕作和农业不断集约化是有证据的。在中世纪期间,树木的丰度最低。现代时代的特征是由于土壤侵蚀而增加了泥沙输入。简而言之,该记录补充了古特兰地区晚更新世/全新世的气候历史,并表明泥炭矿床可能是有价值的高分辨率古气候档案。草原农业和农业的集约化正在得到证明。在中世纪期间,树木的丰度最低。现代时代的特征是由于土壤侵蚀而增加了泥沙输入。简而言之,该记录补充了古特兰地区晚更新世/全新世的气候历史,并表明泥炭矿床可能是有价值的高分辨率古气候档案。草原农业和农业的集约化正在得到证明。在中世纪期间,树木的丰度最低。现代时代的特征是由于土壤侵蚀而增加了泥沙输入。简而言之,该记录补充了古特兰地区晚更新世/全新世的气候历史,并表明泥炭矿床可能是有价值的高分辨率古气候档案。

更新日期:2021-02-17
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