Geoenvironments from the vicinity of Arctowski Station, Admiralty Bay, King George Island, Antarctica: vulnerability and valuation assessment
Abstract The use of a geographic information system (GIS) allows the mapping and quantification of biotic and physical features of importance to the environmental planning of Antarctic areas. In this paper we examined the main aspects of the geoenvironments of Arctowski Station vicinity (Admiralty b...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.560.3254 2023-05-15T13:32:59+02:00 Geoenvironments from the vicinity of Arctowski Station, Admiralty Bay, King George Island, Antarctica: vulnerability and valuation assessment The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.560.3254 http://pubs.usgs.gov/of/2007/1047/srp/srp015/of2007-1047srp015.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.560.3254 http://pubs.usgs.gov/of/2007/1047/srp/srp015/of2007-1047srp015.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://pubs.usgs.gov/of/2007/1047/srp/srp015/of2007-1047srp015.pdf text ftciteseerx 2016-01-08T12:00:52Z Abstract The use of a geographic information system (GIS) allows the mapping and quantification of biotic and physical features of importance to the environmental planning of Antarctic areas. In this paper we examined the main aspects of the geoenvironments of Arctowski Station vicinity (Admiralty bay, Maritime Antartica), by means of a photointerpretation of an orthomosaic at 1:6000 scale, produced by non-conventional aerial photographs obtained by the Brazilian Cryosols project. We carried out a preliminary environmental valuation and vulnerability assessment of the area. Hence, geoenvironments were classified and ranked according with their biological valuation and vulnerability (fragility), mapping 20 units covering approximately 150 ha. The most fragile geoenvironmental units were former and present penguin rookeries with different vegetation covers, all very prone to degradation by over-trampling and human perturbations. The relationships between each geoenvironment were also explored, emphasizing the ecological aspects and their valuation. In quantitative terms, the most vulnerable and fragile units (classes 4 and 5) occupy nearly 22 % of the total area, being highly concentrated near the coastal areas. There, ornithogenic input is an important factor favoring Text Antarc* Antarctic Antarctica antartic* King George Island Unknown Admiralty Bay Antarctic Arctowski ENVELOPE(-58.467,-58.467,-62.167,-62.167) Arctowski Station ENVELOPE(-58.482,-58.482,-62.153,-62.153) King George Island |
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Open Polar |
collection |
Unknown |
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ftciteseerx |
language |
English |
description |
Abstract The use of a geographic information system (GIS) allows the mapping and quantification of biotic and physical features of importance to the environmental planning of Antarctic areas. In this paper we examined the main aspects of the geoenvironments of Arctowski Station vicinity (Admiralty bay, Maritime Antartica), by means of a photointerpretation of an orthomosaic at 1:6000 scale, produced by non-conventional aerial photographs obtained by the Brazilian Cryosols project. We carried out a preliminary environmental valuation and vulnerability assessment of the area. Hence, geoenvironments were classified and ranked according with their biological valuation and vulnerability (fragility), mapping 20 units covering approximately 150 ha. The most fragile geoenvironmental units were former and present penguin rookeries with different vegetation covers, all very prone to degradation by over-trampling and human perturbations. The relationships between each geoenvironment were also explored, emphasizing the ecological aspects and their valuation. In quantitative terms, the most vulnerable and fragile units (classes 4 and 5) occupy nearly 22 % of the total area, being highly concentrated near the coastal areas. There, ornithogenic input is an important factor favoring |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
title |
Geoenvironments from the vicinity of Arctowski Station, Admiralty Bay, King George Island, Antarctica: vulnerability and valuation assessment |
spellingShingle |
Geoenvironments from the vicinity of Arctowski Station, Admiralty Bay, King George Island, Antarctica: vulnerability and valuation assessment |
title_short |
Geoenvironments from the vicinity of Arctowski Station, Admiralty Bay, King George Island, Antarctica: vulnerability and valuation assessment |
title_full |
Geoenvironments from the vicinity of Arctowski Station, Admiralty Bay, King George Island, Antarctica: vulnerability and valuation assessment |
title_fullStr |
Geoenvironments from the vicinity of Arctowski Station, Admiralty Bay, King George Island, Antarctica: vulnerability and valuation assessment |
title_full_unstemmed |
Geoenvironments from the vicinity of Arctowski Station, Admiralty Bay, King George Island, Antarctica: vulnerability and valuation assessment |
title_sort |
geoenvironments from the vicinity of arctowski station, admiralty bay, king george island, antarctica: vulnerability and valuation assessment |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.560.3254 http://pubs.usgs.gov/of/2007/1047/srp/srp015/of2007-1047srp015.pdf |
long_lat |
ENVELOPE(-58.467,-58.467,-62.167,-62.167) ENVELOPE(-58.482,-58.482,-62.153,-62.153) |
geographic |
Admiralty Bay Antarctic Arctowski Arctowski Station King George Island |
geographic_facet |
Admiralty Bay Antarctic Arctowski Arctowski Station King George Island |
genre |
Antarc* Antarctic Antarctica antartic* King George Island |
genre_facet |
Antarc* Antarctic Antarctica antartic* King George Island |
op_source |
http://pubs.usgs.gov/of/2007/1047/srp/srp015/of2007-1047srp015.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.560.3254 http://pubs.usgs.gov/of/2007/1047/srp/srp015/of2007-1047srp015.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766037393071144960 |