Permafrost table depth in soils of Eastern Antarctica oases, King George and Ardley Islands (South Shetland Islands)

IF 0.5 Q4 ECOLOGY

Czech Polar Reports Pub Date : 2020-08-07 DOI:10.5817/cpr2020-1-2

I. Alekseev, E. Abakumov

{"title":"Permafrost table depth in soils of Eastern Antarctica oases, King George and Ardley Islands (South Shetland Islands)","authors":"I. Alekseev, E. Abakumov","doi":"10.5817/cpr2020-1-2","DOIUrl":null,"url":null,"abstract":"This study was aimed to investigate the electrical resistivity in soils and permafrost of various ice-free areas of Antarctica and Sub-Antarctica (from coastal Eastern Antarctica oases to Maritime Antarctica). Measurements of electrical resistivity of soil and permafrost strata were performed with a portable device LandMapper. It was found that the permafrost table depth ranged 82 to106 cm in Bunger Hills, 95 to 122 cm in Larsemann Hills, 27 to 106 in Thala Hills, and 89 to 100 cm on King George Island and Ardley Island. Presence (and thickness) of organic layer and influence of snow patches melting were found the main reasons for differentiation of permafrost table depth in the studied ice-free areas. Anthropogenic disturbance at waste disposal sites resulted in more pronounced soil profile heterogeneity and formation of scattered electrical resistivity profiles. Permafrost layer was found less homogenous in the upper part of permafrost strata compared to the lower part. An application of vertical electrical resistivity sounding (VERS) may be very useful for evaluation of active layer thickness in Antarctic environments, especially when they are facing severe anthropogenic influence due to maintaining of numerous Antarctic research stations and logistical operations","PeriodicalId":37981,"journal":{"name":"Czech Polar Reports","volume":"10 1","pages":"7-22"},"PeriodicalIF":0.5000,"publicationDate":"2020-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"6","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Czech Polar Reports","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.5817/cpr2020-1-2","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ECOLOGY","Score":null,"Total":0}

引用次数: 6

Abstract

This study was aimed to investigate the electrical resistivity in soils and permafrost of various ice-free areas of Antarctica and Sub-Antarctica (from coastal Eastern Antarctica oases to Maritime Antarctica). Measurements of electrical resistivity of soil and permafrost strata were performed with a portable device LandMapper. It was found that the permafrost table depth ranged 82 to106 cm in Bunger Hills, 95 to 122 cm in Larsemann Hills, 27 to 106 in Thala Hills, and 89 to 100 cm on King George Island and Ardley Island. Presence (and thickness) of organic layer and influence of snow patches melting were found the main reasons for differentiation of permafrost table depth in the studied ice-free areas. Anthropogenic disturbance at waste disposal sites resulted in more pronounced soil profile heterogeneity and formation of scattered electrical resistivity profiles. Permafrost layer was found less homogenous in the upper part of permafrost strata compared to the lower part. An application of vertical electrical resistivity sounding (VERS) may be very useful for evaluation of active layer thickness in Antarctic environments, especially when they are facing severe anthropogenic influence due to maintaining of numerous Antarctic research stations and logistical operations

查看原文本刊更多论文

南极东部绿洲、乔治国王群岛和阿德利群岛(南设得兰群岛)土壤永久冻土层深度

本研究旨在研究南极洲和亚南极洲(从南极洲东部沿海绿洲到南极洲海洋)各种无冰区土壤和永久冻土的电阻率。利用便携式LandMapper设备测量了土壤和永久冻土层的电阻率。结果表明，彭格山冻土层深度为82 ~ 106 cm，拉尔森山为95 ~ 122 cm，塔拉山为27 ~ 106 cm，乔治王岛和阿德利岛为89 ~ 100 cm。有机层的存在(及其厚度)和积雪融化的影响是造成冻土区多年冻土深度分化的主要原因。人为干扰导致垃圾处理场土壤剖面非均质性更明显，并形成分散的电阻率剖面。多年冻土层的上部比下部均匀性差。垂直电阻率测深(VERS)的应用对于评价南极环境中的活动层厚度可能非常有用，特别是当它们由于维持众多南极研究站和后勤业务而面临严重的人为影响时

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Czech Polar Reports Agricultural and Biological Sciences-Agricultural and Biological Sciences (all)

CiteScore

1.30

自引率

10.00%

发文量

期刊介绍： Czech Polar Reports is an international, multidisciplinary, peer-reviewed journal. It is issued 2 times a year. The journal is dedicated to provide original research papers for sciences related to the polar regions and other planets with polar analogues. Czech Polar Reports covers the disciplines listed below. polar paleontology, geology, geochemistry, geomorphology, glaciology, climatology, hydrology, pedology, biochemistry, ecology, environmental science, microbiology, plant and animal biology including marine biology.