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DOI | 10.1177/0959683618804631 |
Autogenic and allogenic factors affecting development of a floating Sphagnum-dominated peat mat in a karst pond basin | |
Tsyganov, Andrey N.1,2; Kupriyanov, Dmitry A.1; Babeshko, Kirill V.2; Borisova, Tamara V.2; Chernyshov, Viktor A.2; Volkova, Elena M.3; Chekova, Daria A.3; Mazei, Yuri A.1,2; Novenko, Elena Yu1,4 | |
发表日期 | 2019 |
ISSN | 0959-6836 |
EISSN | 1477-0911 |
卷号 | 29期号:1页码:120-129 |
英文摘要 | Lateral expansion of floating vegetation mats over the surface of aquatic ecosystems (terrestrialization) is one of the ways of peatland development. This process was commonly studied in kettle-hole lakes, whereas karst ponds have received less attention. We used a suite of palaeoecological analyses at Karstovoe mire (Mordovia, Russia) to reconstruct the formation of a floating Sphagnum-dominated peat mat over the karst pond. The results show that the floating peat mat had covered the central part of the pond by ca. AD 1600. Remains of Scirpus sp. and Calamagrostis sp. in the basal layers indicate that these plants might form a framework on which Sphagnum mosses and sedges were established. The terrestrialization could be triggered by the 'Medieval Warm Period' (AD 950-1250) as droughts reduce water levels and allow the pioneering plants to colonize exposed bottom sediments on the margins of lakes. Later, the development of the mire was mainly driven by autogenic factors that could be explained by the relatively stable hydrological regime in freely floating or poorly attached vegetation mats. In the mid 19th century, the surface wetness of the mire started to decline that can be related to both increased human activity associated with fires and to a greater thickness of the mat so that autogenic and allogenic effects were difficult to disentangle. In less than a century after that, the fen transformed to a pioneer raised mire. Our results show complex and context-dependent effect of autogenic and allogenic factors on the development of floating peat mats. |
WOS研究方向 | Physical Geography ; Geology |
来源期刊 | HOLOCENE
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文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/90820 |
作者单位 | 1.Lomonosov Moscow State Univ, Moscow, Russia; 2.Penza State Univ, Dept Zool & Ecol, 40 Krasnaya St, Penza 440026, Russia; 3.Tula State Univ, Tula, Russia; 4.Russian Acad Sci, Inst Geog, Moscow, Russia |
推荐引用方式 GB/T 7714 | Tsyganov, Andrey N.,Kupriyanov, Dmitry A.,Babeshko, Kirill V.,et al. Autogenic and allogenic factors affecting development of a floating Sphagnum-dominated peat mat in a karst pond basin[J],2019,29(1):120-129. |
APA | Tsyganov, Andrey N..,Kupriyanov, Dmitry A..,Babeshko, Kirill V..,Borisova, Tamara V..,Chernyshov, Viktor A..,...&Novenko, Elena Yu.(2019).Autogenic and allogenic factors affecting development of a floating Sphagnum-dominated peat mat in a karst pond basin.HOLOCENE,29(1),120-129. |
MLA | Tsyganov, Andrey N.,et al."Autogenic and allogenic factors affecting development of a floating Sphagnum-dominated peat mat in a karst pond basin".HOLOCENE 29.1(2019):120-129. |
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