| 词条 | Blue Lake (New South Wales) |
| 释义 |
| name = Blue Lake | native_name = | native_name_lang = | other_name = | image = Blue Lake, Snowy Mountains - Lake - 3.jpg | image_size = 260 | alt = | caption = Frozen Blue Lake | image_bathymetry = | alt_bathymetry = | caption_bathymetry = | location = Snowy Mountains, New South Wales | group = | coordinates = {{coord|36|24|13|S|148|18|54|E|type:waterbody_region:AU-ACT|display=inline,title}} | type = Glacial cirque | etymology = | part_of = | inflow = Snowmelt | rivers = Blue Lake Creek | outflow = | oceans = | catchment = | basin_countries = Australia | agency = | designation = {{unbulleted list|Kosciuszko National Park;|Australian Alps National Parks and Reserves;|Ramsar site}} | date-built = | engineer = | date-flooded = | length = | width = | area = {{convert|16|ha|acre|abbr=on}} | depth = | max-depth = {{convert|28|m|abbr=on}} | volume = | residence_time = | salinity = | shore = | elevation = {{convert|1890|m|abbr=on}} {{AHD}} | temperature_high = | temperature_low = | frozen = June–September | islands = | islands_category = | sections = | trenches = | benches = | cities = | pushpin_map = Australia New South Wales | pushpin_label_position = | pushpin_map_alt = | pushpin_map_caption = Location in New South Wales | website = | reference = | embedded = {{Designation list | embed = yes | designation1 = Ramsar | designation1_date = 17 March 1996 | designation1_number = 800[1]}} }} The Blue Lake is one of only four cirque lakes found in mainland Australia. The other three, Cootapatamba, Albina, and Club, are shallower and are held entirely by terminal moraines. Blue Lake's valley contains the best-developed glacial features in the Kosciuszko National Park alpine area of New South Wales. It was recognised as a wetland of international importance on 17 March 1996 when a {{convert|320|ha|acre|adj=on}} area, comprising the lake and its surrounds, including nearby Hedley Tarn, was designated Ramsar Site 800 under the Ramsar Convention on wetlands.[2][3] The lake lies within the Australian Alps National Parks and Reserves. DescriptionBlue Lake is {{convert|16|ha|acre}} in area and {{convert|28|m}} deep. Its surface is entirely open water, with boulders reaching the shore in the east and north east, and the other shores being pebbly. It lies about {{convert|28|km}} west of Jindabyne and {{convert|3.5|km}} north of Charlotte Pass at an altitude of {{convert|1890|m}} above mean sea level, in a glacial landscape.[3] The lake was formed when glaciers flowing from the Great Dividing Range converged and carved out a basin in the granite bedrock. It receives water from Blue Lake Creek, originating from Mount Twynam and from snowmelt. The surface of the lake is frozen for about four months of the year; it overflows in spring with the melting of the snow while, during the rest of the year, the water level remains stable.[3] Flora and faunaThe lake is surrounded by alpine herbfield, heaths, bogs and fens supporting a range of native plants and animals, including rare, vulnerable and endangered species, as well as several kinds of invertebrate restricted to the alpine zone. Rare or threatened plants found within the Ramsar site include the branched carraway, wedge oschatzia and snow-wort, as well as the endangered ecological community of Montane Peatlands and Swamps. Threatened animals found there include the mountain pygmy possum and broad-toothed rat.[3] Access and usageBlue Lake may be reached by a 2-hour walk from Charlotte Pass. Human activities in the area include environmental education, bushwalking, skiing, and ice climbing. Since all five glacial lakes in the Kosciuszko alpine area are naturally low in nutrients, in order to maintain nutrient balance and prevent contamination, camping is not permitted in the catchments of the glacial lakes.[4] References1. ^{{Cite web|title=Blue Lake|website=Ramsar Sites Information Service|url=https://rsis.ramsar.org/ris/800|accessdate=25 April 2018}} 2. ^{{cite web|url=http://www.ramsar.org/cda/en/ramsar-pubs-annolist-annotated-ramsar-16713/main/ramsar/1-30-168%5E16713_4000_0__ |title=The Annotated Ramsar List: Australia |accessdate=4 April 2010 |work= |publisher=The Ramsar Convention on Wetlands |date=4 January 2000 |deadurl=yes |archiveurl=https://web.archive.org/web/20110919211637/http://www.ramsar.org/cda/en/ramsar-pubs-annolist-annotated-ramsar-16713/main/ramsar/1-30-168%5E16713_4000_0__ |archivedate=19 September 2011 |df=dmy }} 3. ^1 2 {{cite web |url=http://www.environment.gov.au/cgi-bin/wetlands/ramsardetails.pl?refcode=48 |title=Blue Lake |accessdate=4 April 2010 |work=Australian Ramsar Wetlands |publisher=Australian Government, Department of the Environment, Water, Heritage and the Arts |date=5 March 2010 }} 4. ^1 National Parks and Wildlife Services (text from sign near Blue Lake). External links
5 : Lakes of New South Wales|Ramsar sites in Australia|Protected areas of New South Wales|Snowy Mountains|Kosciuszko National Park |
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